(a) Draw a diagram of human respiratory system and label the following: (i) part where air is filtered by fine hair and mucus (ii) part which terminates in balloon – like structures (iii) balloon – like structures where exchange of gases takes place. (iv) part which separates chest cavity from abdominal cavity. (b) Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms? -Biology

(a) Draw a diagram of human respiratory system and label the following: (i) part where air is filtered by fine hair and mucus (ii) part which terminates in balloon – like structures (iii) balloon – like structures where exchange of gases takes place. (iv) part which separates chest cavity from abdominal cavity. (b) Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms? -Biology
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1 Answer

Answer :

(a) (b) Quantity of dissolved oxygen is fairly low in water as compared to the amount of oxygen in air. Aquatic organisms therefore have to breath faster than terrestrial organisms to absorb the required amount of oxygen from the water.
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Related questions

The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. (a) C : Arterial capillary - Passes oxygen to tissues (b) A : Alveolar cavity - Main site of exchange of respiratory gases (c) D : Capillary wall - Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly

Description : The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. ... Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly

Last Answer : (b) A : Alveolar cavity - Main site of exchange of respiratory gases

The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases. (b) D - Lower end of lungs - Diaphragm pulls it down during inspiration. (c) A - Trachea - Long tube supported by complete cartilaginous rings for conducting inspired air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Description : The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - ... air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Last Answer : (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases.

Give reasons for the following (i)The human testes are located outside the abdominal cavity. (ii)Some organisms like honeybees are called parthenogenetic animals -Biology

Description : Give reasons for the following (i)The human testes are located outside the abdominal cavity. (ii)Some organisms like honeybees are called parthenogenetic animals -Biology

Last Answer : Testes are located outside the abdominal cavity within a pouch called scrotum. Scrotum maintains low temperature of the testes (2-2.5°C lower than normal body temp­erature) ... from unfertilised diploid eggs (and do not undergo fertilisation) they are called parthenogenetic animals.

(a) “The breathing cycle is rhythmic whereas exchange of gases is a continuous process”. Justify this statement. (b) What happens if conducting tubes of circulatory system develops a leak? State in brief, how could this be avoided? (c) How opening and closing of stomata takes place? -Biology

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Last Answer : (a) The breathing cycle involves inhalation and exhalation of air due to alternate expansion and contraction of thoracic cavity. Thus it is a rhythmic process. But exchange of gases is a continuous process ... pore opens up. When water moves out the guard cells shrinks and the stomatal pore closes.

The Correct Statements with reference to single called organisms are (i) Complex substances are not broken down in to simpler substances. (ii) Simple diffusion is sufficient to meet the requirement of exchange of gases. (iii) Specialized tissues perform different functions in the organism. (iv) Entire surface of the organism is in contact with the environment for taking in food. (a) (i) and (iii) (b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Description : The Correct Statements with reference to single called organisms are (i) Complex substances are not broken down in to simpler substances. (ii) Simple diffusion is sufficient to meet the requirement of exchange of gases. (iii) Specialized ... b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Last Answer : Answer: (c)

How exchange of gases takes place in terrestrial animals?

Description : How exchange of gases takes place in terrestrial animals? 

Last Answer : Through Trachea: - Insects and other land arthropods use tracheal tubes for exchange of gases. This is very simple and effective method. These animals have network of tracheal tubes. These tubes on ... In them the respiratory system consists of alveoli. Birds have air sacs in addition to lungs. 

How is the respiratory system in aquatic molluscs characterized? What adaptive respiratory structure do terrestrial molluscs present?

Description : How is the respiratory system in aquatic molluscs characterized? What adaptive respiratory structure do terrestrial molluscs present?

Last Answer : Aquatic molluscs oxygenate their blood through gills in direct contact with water. In terrestrial molluscs the rich vascularity under the mantle cavity absorbs air doing the role of a primitive lung. Mollusca - Image Diversity: mollusc respiratory system

Match the organisms in column-I with habitats in column-II. Column-I Column-II A. Halophiles (i) Hot springs B. Thermoacidophiles (ii) Aquatic environment C. Methanogens (iii)Guts of ruminants D. Cyanobacteria (iv) Salty area Select the correct answer from the options given below. (a) A-(iv), B-(i), C-(iii), D-(ii) (b) A-(i), B-(ii), C-(iii), D-(iv) (c) A-(iii), B-(iv), C-(ii), D-(i) (d) A-(ii), B-(iv), C-(iii), D-(i)

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Last Answer : (a) A-(iv), B-(i), C-(iii), D-(ii)

Which organs or respiratory adaptations do aquatic and terrestrial arthropods respectively present?

Description : Which organs or respiratory adaptations do aquatic and terrestrial arthropods respectively present?

Last Answer : In crustaceans, typical aquatic beings, there are richly vascularized gills that make contact with water and permit gas exchange. In terrestrial insects the respiration is ... Phylum Arthropoda - Image Diversity: crustacean respiratory systeminsect respiratory system arachnid respiratory system

n assisting the client to do deep breathing, coughing and turning to the sides on the first post-operative day, which nursing action would be most helpful for the client? A. Restate the importance of respiratory exercises B. Give the client reassurance that can he can cough, breathe deeply and turn to sides safely C. Administer the prescribed analgesic round the clock as prescribed D. Apply abdominal splint (pillow) while coughing

Description : n assisting the client to do deep breathing, coughing and turning to the sides on the first post-operative day, which nursing action would be most helpful for the client? A. Restate ... the prescribed analgesic round the clock as prescribed D. Apply abdominal splint (pillow) while coughing

Last Answer : D. Apply abdominal splint (pillow) while coughing

(a) Draw a diagram to show the nutrition in Amoeba and label the parts used for this purpose. Mention any other purpose served by this part other than nutrition. (b) Name the glands associated with digestion of starch in human digestive tract and mention their role. (c) How is required pH maintained in the stomach and small intestine? -Biology

Description : (a) Draw a diagram to show the nutrition in Amoeba and label the parts used for this purpose. Mention any other purpose served by this part other than nutrition. (b) Name the glands associated ... mention their role. (c) How is required pH maintained in the stomach and small intestine? -Biology

Last Answer : Answer.(a) Pseudopodia serves the purpose of locomotion apart from nutrition. (b) The salivary gland is associated with digestion of starch in human digestive tract. It secretes saliva which contains ... juice from liver makes the food alkaline in small intestine for the pancreatic enzymes to act.

(a) Draw a diagram depicting Human Alimentary Canal and label on it: Gall bladder, Liver and Pancreas. (b) State the roles of Liver and Pancreas. (c) Name the organ which performs the following functions in humans: (i) Absorption of digested food (ii) Absorption of water. -Biology

Description : (a) Draw a diagram depicting Human Alimentary Canal and label on it: Gall bladder, Liver and Pancreas. (b) State the roles of Liver and Pancreas. (c) Name the organ which performs the following functions in humans: (i) Absorption of digested food (ii) Absorption of water. -Biology

Last Answer : Answer.(a) (b) Liver: It synthesize and store bile juice secreted by gall bladder which breaks down fats into fat globules. (c) The organ which performs the following functions in humans are as ... * (i) Absorption of digested food - Small intestine. (ii)Absorption of water - Large intestine.

The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part, A,

Description : The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part, A,

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Which two of the following changes (i –iv) usually tend to occur in the plain dwellers when they move to high altitudes (3,500 m or more)? (i) Increase in red blood cell size (ii) Increase in red blood cell production (iii)Increased breathing rate (iv) Increase in thrombocyte count Changes occurring are (a) (ii) and (iii) (b) (iii) and (iv) (c) (i) and (iv) (d) (i) and (ii).

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(a) Draw a diagram of excretory system in human beings and label the following parts. Aorta, kidney, urinary bladder and urethra.(b) How is urine produced and eliminated ? -Biology

Description : (a) Draw a diagram of excretory system in human beings and label the following parts. Aorta, kidney, urinary bladder and urethra.(b) How is urine produced and eliminated ? -Biology

Last Answer : Answer.(a) (b) Blood from the heart comes into the kidneys afferent and efferent arteriols from the renal arteries where it enters about 2-3 million nephrons per kidney. Then, it goes through the ... goes through ureters to bladder and then to urethra where it is excreted out of body as urine.

Draw a diagram of human excretory system and label renal artery and urethra. State in brief the function of : renal artery kidney ureter urinary bladder -Biology

Description : Draw a diagram of human excretory system and label renal artery and urethra. State in brief the function of : renal artery kidney ureter urinary bladder -Biology

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Draw a diagram of human excretory system and label kidneys, ureters on it. -Biology

Description : Draw a diagram of human excretory system and label kidneys, ureters on it. -Biology

Last Answer : Here is your diagram.

(a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide during transportation of blood in human beings and label on it: Lung capillaries, Pulmonary artery to lungs, Aorta to body, Pulmonary veins from lungs. (b) What is the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood? -Biology

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Last Answer : (a) A schematic representation of transportation and exchange of oxygen and carbon dioxide during transportation of blood in human beings (b) It is necessary to separate oxygenated and deoxygenated ... . The separation of oxygenated and deoxygenated blood provides high oxygen supply to the organs.

(a) Draw a diagram to show open stomatal pore and label on it: (i) guard cells (ii) chloroplast (b) State two functions of stomata. (c) How do guard cells regulate the opening and closing of stomatal pore? -Biology

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Last Answer : (a) (b) Two functions of stomata are: (i) Exchange of gases between the plant and the atmosphere takes place through stomata. (ii)Transpiration in plants takes place through stomata. ( ... through these stomata, the plant closes these pores when it does not require carbon dioxide for photosynthesis.

Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of a concave mirror (iii) in front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics

Description : Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of ... front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics

Last Answer : Answer. Nature of image: Real, inverted and same size image is formed at the centre of curvature. Nature of image: Virtual, enlarged and erect image is formed behind the mirror. Nature of image: Virtual ... : Virtual, erect and diminished image is formed between O and F on the same side of object.

Draw a diagram of the front view of human heart and label any six parts including at least two, that are concerned with arterial blood supply to the heart muscles. -Biology

Description : Draw a diagram of the front view of human heart and label any six parts including at least two, that are concerned with arterial blood supply to the heart muscles. -Biology

Last Answer : This is the Answer.

Listed below are four respiratory capacities (i–iv) and four jumbled respiratory volumes of a normal human adult. Respiratory Respiratory capacities volumes (i) Residual volume 2500 mL (ii) Vital capacity 3500 mL (iii)Inspiratory reserve volume 1200 mL (iv) Inspiratory capacity 4500 mL Which one of the following is the correct matching of two capacities and volumes? (a) (ii) 2500 mL, (iii) 4500 mL (b) (iii) 1200 mL, (iv) 2500 mL (c) (iv) 3500 mL, (i) 1200 mL (d) (i) 4500 mL, (ii) 3500 mL

Description : Listed below are four respiratory capacities (i-iv) and four jumbled respiratory volumes of a normal human adult. Respiratory Respiratory capacities volumes (i) Residual volume 2500 mL (ii) Vital capacity 3500 mL (iii)Inspiratory ... c) (iv) 3500 mL, (i) 1200 mL (d) (i) 4500 mL, (ii) 3500 mL

Last Answer : (c) (iv) 3500 mL, (i) 1200 mL

Write a note on exchange of gases in aquatic animals?

Description : Write a note on exchange of gases in aquatic animals? 

Last Answer : Through Skin: - The skin of aquatic animals is moist and rich with blood so that oxygen can diffuse directly. Frog and tortoises breathe through skin during hibernation.  Through Gills: - Gills are ... have external gills. Water enters through mouth flows over the gills and goes out of the body.  

An adult patient of acute diarrhoea presents with abdominal pain, fever, mucus and blood in stools and is suspected to be suffering from Shigella enteritis. What antimicrobial treatment would be most appropriate: A. No antimicrobial treatment B. Metronidazole C. Norfloxacin D. Chloramphenicol

Description : An adult patient of acute diarrhoea presents with abdominal pain, fever, mucus and blood in stools and is suspected to be suffering from Shigella enteritis. What antimicrobial treatment would be most appropriate: A. No antimicrobial treatment B. Metronidazole C. Norfloxacin D. Chloramphenicol

Last Answer : C. Norfloxacin

What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration ? -Biology

Description : What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration ? -Biology

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In frog, “fenestra ovalis” is (a) the communication between the pharynx and the tympanic cavity (b) the external opening of the tympanic cavity which is covered by the tympanic membrane (c) the air filled cavity of the middle ear (d) the opening in the auditory capsule which separates the middle ear from the internal ear.

Description : In frog, fenestra ovalis is (a) the communication between the pharynx and the tympanic cavity (b) the external opening of the tympanic cavity which is covered by the tympanic membrane (c) the ... ear (d) the opening in the auditory capsule which separates the middle ear from the internal ear.

Last Answer : (c) the air filled cavity of the middle ear

The breakdown of pyruvate to give carbon dioxide, water and energy takes place in (i) cytoplasm (ii) mitochondria (iii) chloroplast (iv) nucleus -Biology

Description : The breakdown of pyruvate to give carbon dioxide, water and energy takes place in (i) cytoplasm (ii) mitochondria (iii) chloroplast (iv) nucleus -Biology

Last Answer : The break down of pyruvate to give carbon dioxide, energy and water takes place in the presence of oxygen and is termed as aerobic respiration. This process takes place in the mitochondria of a cell.

Match the following columns and select the correct option. Column-I Column-II (A) Floating ribs (i) Located between second and seventh ribs (B) Acromion (ii) Head of the humerus (C) Scapula (iii) Clavicle (D) Glenoid cavity (iv) Do not connect with the sternum (A) (B) (C) (D) (a) (ii) (iv) (i) (iii) (b) (i) (iii) (ii) (iv) (c) (iii) (ii) (iv) (i) (d) (iv) (iii) (i) (ii)

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Last Answer : (d) (iv) (iii) (i) (ii)

The bur should be tilted lingually when preparing the occlusal surface of class II cavity on a mandibular first premolar in order to: I. Remove unsupported enamel II. Prevent encroachment on the buccal pulp horn III. Prevent encroachment on the lingual pulp horn IV. Maintain dentinal support of the lingual cusp A. I and II B. I and III C. II and IV D. III and IV E. IV only

Description : The bur should be tilted lingually when preparing the occlusal surface of class II cavity on a mandibular first premolar in order to: I. Remove unsupported enamel II. Prevent encroachment on the buccal pulp horn III. Prevent ... and II B. I and III C. II and IV D. III and IV E. IV only

Last Answer : C. II and IV

Are reservoirs that chemical elements can move through as part of the Earth's biogeochemical cycle I.the solid Earth II.Earth's oceans III.Earth's atmosphere IV.organisms on Earth?

Description : Are reservoirs that chemical elements can move through as part of the Earth's biogeochemical cycle I.the solid Earth II.Earth's oceans III.Earth's atmosphere IV.organisms on Earth?

Last Answer : Need answer

(a) Draw a sectional view of the human heart and label on it – Aorta, Right ventricle and Pulmonary veins. (b) State the functions of the following components of transport system: (i) Blood (ii) Lymph -Biology

Description : (a) Draw a sectional view of the human heart and label on it – Aorta, Right ventricle and Pulmonary veins. (b) State the functions of the following components of transport system: (i) Blood (ii) Lymph -Biology

Last Answer : Answer.(a) (b) The functions of blood and lymph are as follows: (i) BloodOxygen is transported by the blood to the tissues of the body for the breakdown of digested food.Carbon dioxide is ... without which nothing will diffuse. (iii) A thin surface across which gases diffuse. (iv) Warm conditions.

Name any two applications of following gases: (i) Nitrogen (ii) Hydrogen (iii) Sf6 (iv) Air.

Description : Name any two applications of following gases: (i) Nitrogen (ii) Hydrogen (iii) Sf6 (iv) Air. 

Last Answer : i) Applications of Nitrogen:  1. As a cooling agent. 2. To avoid oxidation. 3. Electrical insulating material (Gas) in electrical equipment. ii) Applications of Hydrogen:  1. High ... As a cooling agent in electrical machines. 2. Electrical insulating material (Gas) in electrical equipment. 

What is a function of mucus in the nasal cavity?

Description : What is a function of mucus in the nasal cavity?

Last Answer : It is produced by all body systems which have an outlet to the outside. This means that your digestive, respiratory, urinary and reproductive systems all produce this sticky stuff. Any others produce a ... trapping bacteria, pollen or even insects as it tries to prevent them from entering the body.

Label the structure indicated by (i), (ii), (iii) and (iv)-

Description : Label the structure indicated by (i), (ii), (iii) and (iv)-

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(a) IN WHICH PART OF HUMAN FEMALE REPRODUCTIVE SYSTEM DO THE FOLLOWING EVENTS TAKE PLACE. (i) RELEASE OF FIRST POLAR BODY (ii) RELEASE OF SECOND POLAR BODY (iii) FERTILISATION (iv) IMPLANTATION (b) NAME TWO HORMONES SECREATED ONLY DURING PREGNANCY.

Description : (a) IN WHICH PART OF HUMAN FEMALE REPRODUCTIVE SYSTEM DO THE FOLLOWING EVENTS TAKE PLACE. (i) RELEASE OF FIRST POLAR BODY (ii) RELEASE OF SECOND POLAR BODY (iii) FERTILISATION (iv) IMPLANTATION (b) NAME TWO HORMONES SECREATED ONLY DURING PREGNANCY.

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Explain the effect of accumulation of solid waste on aquatic and terrestrial life. -SST 10th

Description : Explain the effect of accumulation of solid waste on aquatic and terrestrial life. -SST 10th

Last Answer : (i) Ammonia seems to be an internal poison to fish as it gets into the body through the gills. (ii) Bio-accumulation in sea-birds and marine mammals has been linked to reduced breeding success. ( ... , cats and rabbits. (v) Oil is reported to coat the gills of fish which affects their respiration.

Which aquatic plants and terrestrial plants have more photosynthesis ?

Last Answer : In aquatic plants. Because water contains high levels of carbon dioxide, such as: .3%. And 0.03% in the atmosphere.

Which reproductive adaptation is characteristic of most terrestrial vertebrates but not of most aquatic vertebrates?

Description : Which reproductive adaptation is characteristic of most terrestrial vertebrates but not of most aquatic vertebrates?

Last Answer : Which reproductive adaptation is characteristic of most terrestrial vertebrates but not of most aquatic ... C. Motile gametes D. External development.

What are the problems that vertebrates needed to solve to adapt to the terrestrial environment since they came from the aquatic habitat? How does evolution solved those problems?

Description : What are the problems that vertebrates needed to solve to adapt to the terrestrial environment since they came from the aquatic habitat? How does evolution solved those problems?

Last Answer : The main problems vertebrates coming from water needed to solve to adapt to the terrestrial environment were the following: the problem to avoid dehydration; the problem of elimination of wastes in ... body support problem: further development of muscular and bony structures, like limbs and claws.

Why aquatic animals have soft skeleton unlike those of the terrestrial animals?

Description : Why aquatic animals have soft skeleton unlike those of the terrestrial animals?

Last Answer : Ans: The density of animals and fish living in water is almost the same as the density of water. Therefore, their weight is almost completely balanced by buoyancy. That is why they do not need massive skeleton like those of terrestrial animals.

Compared to terrestrial environments, aquatic environments are more stable in: w) temperature range x) producer consumer distribution y) sunlight absorbed z) number species

Description : Compared to terrestrial environments, aquatic environments are more stable in: w) temperature range x) producer consumer distribution y) sunlight absorbed z) number species 

Last Answer : ANSWER: W -- TEMPERATURE RANGE

Read the following four statements, (i), (ii), (iii) and (iv) and select the right option having both correct statements. Statements : (i) Z scheme of light reaction takes place in presence of PSI only. (ii) Only PSI is functional in cyclic photophosphorylation. (iii)Cyclic photophosphorylation results into synthesis of ATP and NADPH2. (iv) Stroma lamellae lack PSII as well as NADP. (a) (ii) and (iv) (b) (i) and (ii) (c) (ii) and (iii) (d) (iii) and (iv)

Description : Read the following four statements, (i), (ii), (iii) and (iv) and select the right option having both correct statements. Statements : (i) Z scheme of light reaction takes place in presence of PSI only. (ii) Only PSI is ... and (iv) (b) (i) and (ii) (c) (ii) and (iii) (d) (iii) and (iv)

Last Answer : (a) (ii) and (iv)

Match the stages of meiosis in column I to their characteristic features in column II and select the correct option using the codes given below. Column I Column II A. Pachytene (i) Pairing of homologous chromosomes B. Metaphase I (ii) Terminalisation of chiasmata C. Diakinesis (iii) Crossing-over takes place D. Zygotene (iv) Chromosomes align at equatorial plate (a) A-(iii), B-(iv), C-(ii), D-(i) (b) A-(i), B-(iv), C-(ii), D-(iii) (c) A-(ii), B-(iv), C-(iii), D-(i) (d) A-(iv), B-(iii), C-(ii), D-(i)

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Last Answer : (a) A-(iii), B-(iv), C-(ii), D-(i)

Match the following structures with their respective location in organs. (A) Crypts of Lieberkuhn (i) Pancreas (B) Glisson’s Capsule (ii) Duodenum (C) Islets of Langerhans (iii) Small intestine (D) Brunner’s Glands (iv) Liver Select the correct option from the following: (A) (B) (C) (D) (a) (iii) (ii) (i) (iv) (b) (iii) (i) (ii) (iv) (c) (ii) (iv) (i) (iii) (d) (iii) (iv) (i) (ii)

Description : Match the following structures with their respective location in organs. (A) Crypts of Lieberkuhn (i) Pancreas (B) Glisson's Capsule (ii) Duodenum (C) Islets of Langerhans (iii) Small intestine (D) Brunner's Glands (iv) Liver Select the ... ii) (iv) (c) (ii) (iv) (i) (iii) (d) (iii) (iv) (i) (ii)

Last Answer : (d) (iii) (iv) (i) (ii)

Muller Breslau's principle for obtaining influence lines is applicable to (i) Trusses (ii) Statically determinate beams and frames (iii) Statically indeterminate structures, the material of which is elastic and follows Hooke's law (iv) Any statically indeterminate structure The correct answer is (A) (i), (ii) and (iii) (B) (i), (ii) and (iv) (C) (i) and (ii) (D) Only (i)

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Last Answer : (A) (i), (ii) and (iii)

For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal (i) Of a stiffness matrix must be positive (ii) Of a stiffness matrix must be negative (iii) Of a flexibility matrix must be positive (iv) Of a flexibility matrix must be negative The correct answer is (A) (i) and (iii) (B) (ii) and (iii) (C) (i) and (iv) (D) (ii) and (iv)

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Last Answer : (A) (i) and (iii)

During which stage of pressure ulcer development does the ulcer extend into the underlying structures, including the muscle and possibly the bone? a) Stage IV A stage IV pressure ulcer extends into the underlying structure, including the muscle and possibly the bone. b) Stage III A stage III ulcer extends into the subcutaneous tissue. c) Stage II A stage II ulcer exhibits a break in the skin through the epidermis or dermis. d) Stage I A stage I pressure ulcer is an area of nonblanchable erythema, tissue swelling, and congestion, and the patient complains of discomfort.

Description : During which stage of pressure ulcer development does the ulcer extend into the underlying structures, including the muscle and possibly the bone? a) Stage IV A stage IV pressure ulcer ... area of nonblanchable erythema, tissue swelling, and congestion, and the patient complains of discomfort.

Last Answer : a) Stage IV A stage IV pressure ulcer extends into the underlying structure, including the muscle and possibly the bone.