Blood enters the heart because muscles of the

Blood enters the heart because muscles of the
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Blood enters the heart because muscles of the A. Atria relax B. Ventricle contract C. Ventricle relax D. Atria contract
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When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while because (a) The eye muscles cannot immediately change the focal length of the eye lens (b) The retina retains the bright images for some time and becomes momentarily insensitive (c) The iris is unable to contract the pupil immediately (d) The iris is unable to dilate the pupil immediately

Description : When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while because (a) The eye muscles cannot immediately change the focal length of the eye ... iris is unable to contract the pupil immediately (d) The iris is unable to dilate the pupil immediately

Last Answer : Ans:(d)

When a person walking in bright Sunlight enters a dark room, he is not able to see clearly for a little while because (1) the eye muscles cannot immediately adjust the focal length of the eye lens. (2) the retina retains the bright images for sometime and becomes momentarily insensitive. (3) the iris is unable to contract the pupil immediately. (4) the iris is unable to dilate the pupil immediately.

Description : When a person walking in bright Sunlight enters a dark room, he is not able to see clearly for a little while because (1) the eye muscles cannot immediately adjust the focal length of the eye ... is unable to contract the pupil immediately. (4) the iris is unable to dilate the pupil immediately.

Last Answer : the iris is unable to dilate the pupil immediately.

Succinylcholine is the preferred muscle relaxant for tracheal intubation because: A. It produces rapid and complete paralysis of respiratory muscles with quick recovery B. It does not alter heart rate or blood pressure C. It does not cause histamine release D. It does not produce postoperative muscle soreness

Description : Succinylcholine is the preferred muscle relaxant for tracheal intubation because: A. It produces rapid and complete paralysis of respiratory muscles with quick recovery B. It does not alter heart rate or ... C. It does not cause histamine release D. It does not produce postoperative muscle soreness

Last Answer : A. It produces rapid and complete paralysis of respiratory muscles with quick recovery

Which is the first (human) heart chamber into which blood enters? Where does the blood go after passing that chamber? What is the name of the valve that separates the compartments? Why is that valve necessary?

Description : Which is the first (human) heart chamber into which blood enters? Where does the blood go after passing that chamber? What is the name of the valve that separates the compartments? Why is that valve necessary?

Last Answer : The venous blood that comes from the tissues arrives in the right atrium of the heart. From the right atrium the blood goes to the right ventricle. The valve that separates the ... right atrium during systole (contraction of ventricles). The Circulatory System - Image Diversity: heart circulation

Give one reason for the following statements : (a) The blood is called connective tissue. (b) Muscles are able to contract and relax to bring about movements. (c) Muscles of heart are called involuntary muscles. -Biology 9th

Description : Give one reason for the following statements : (a) The blood is called connective tissue. (b) Muscles are able to contract and relax to bring about movements. (c) Muscles of heart are called involuntary muscles. -Biology 9th

Last Answer : a) blood flows in every part of our body and thus connecting every part of our body and hence blood is known as liquid connective tissue b)as skeletal muscles contracts and relax as they have special ... c)muscle of heart are known as involuntary muscle because we can't control them by our own will

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.

People consuming alcohol in heavy quantities generally die of – (1) liver or stomach cancer (2) weakening of heart muscles leading to cardiac arrest (3) blood cancer (4) Cirrhosis

Description : People consuming alcohol in heavy quantities generally die of – (1) liver or stomach cancer (2) weakening of heart muscles leading to cardiac arrest (3) blood cancer (4) Cirrhosis

Last Answer : (4) Cirrhosis Explanation: Cirrhosis is a condition in which the liver does not function properly due to longterm damage. This damage is characterized by the replacement of normal liver tissue by scar tissue.

Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Description : Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Last Answer : (2) cirrhosis Explanation: Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.

In the more highly developed animals, such as humans this gas is used to regulate the activity of the heart, the blood vessels, and the respiratory system. WORKING MUSCLES PRODUCE A LARGE AMOUNT OF THI SUBSTANCE. Narcosis due to this gas is characterized by mental disturbances which can include confusion, headache, low blood pressure and hypothermia. Name this gas.

Description : In the more highly developed animals, such as humans this gas is used to regulate the activity of the heart, the blood vessels, and the respiratory system. WORKING MUSCLES PRODUCE A ... mental disturbances which can include confusion, headache, low blood pressure and hypothermia. Name this gas.

Last Answer : ANSWER: Carbon Dioxide or CO2 

Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Description : Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Last Answer : cirrhosis

Neuromuscular blocking drugs do not produce central actions because: A. They do not cross the blood-brain barrier B. Nicotinic receptors are not present in the brain C. They are sequestrated in the periphery by tight binding to the skeletal muscles D. They do not ionise at the brain pH

Description : Neuromuscular blocking drugs do not produce central actions because: A. They do not cross the blood-brain barrier B. Nicotinic receptors are not present in the brain C. They are sequestrated in the periphery by tight binding to the skeletal muscles D. They do not ionise at the brain pH

Last Answer : A. They do not cross the blood-brain barrier

If you have a heart attack and they say your heart muscles weakened from a 60 to a 30 does this mean it can not be strengthened to a 60 again?

Description : If you have a heart attack and they say your heart muscles weakened from a 60 to a 30 does this mean it can not be strengthened to a 60 again?

Last Answer : I had a heart attack in June of 2008. My heart measured 38 when I was released from the hospital. I'm in a cardiac rehab program and attend two times one week, one the next (due to my work schedule). ... 153 for 5 minutes. That's too high to do for 20 minutes straight (hence the term stress test ).

The valves of the heart are attached to papillary muscles by `:-`

Description : The valves of the heart are attached to papillary muscles by `:-`

Last Answer : The valves of the heart are attached to papillary muscles by `:-` A. Columnae camae B. Chordae tendinae C. Tendinae D. Pectinati muscles

Why the muscles on the left side of the heart causes lack of energy?

Description : Why the muscles on the left side of the heart causes lack of energy?

Last Answer : Need answer

What is an endoscope? (1) It is an optical instrument used to see inside the alimentary canal (2) It is a device which is fitted on the chest of the patient to regularize the irregular heart beats (3) It is an instrument used for examining ear disorders (4) It is an instrument for recording electrical signals produced by human muscles

Description : What is an endoscope? (1) It is an optical instrument used to see inside the alimentary canal (2) It is a device which is fitted on the chest of the patient to regularize the ... used for examining ear disorders (4) It is an instrument for recording electrical signals produced by human muscles

Last Answer : (1) It is an optical instrument used to see inside the alimentary canal Explanation: Endoscopymeans looking inside and typically refers to looking inside the body for medical reasons using ... : breathing disorders; chronic diarrhea; internal bleeding; irritable bowel syndrome; stomach ulcers, etc.

Smooth muscles are likely to be found in – (1) muscles of legs (2) muscles of arms (3) stomach (4) heart

Description : Smooth muscles are likely to be found in – (1) muscles of legs (2) muscles of arms (3) stomach (4) heart

Last Answer : (3) stomach Explanation: The term smooth muscle refers to a muscle of the human body that is part of a involuntary muscle group. The walls of hollow organs are the primary place ... arteries, arterioles and veins, urinary bladder, uterus, male and female reproductive tracts, respiratory tract etc.

EEG is a technique to record the activity of – (1) heart (2) lungs (3) brain (4) muscles

Description : EEG is a technique to record the activity of – (1) heart (2) lungs (3) brain (4) muscles

Last Answer : (3) brain Explanation: Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain.

Heart murmur indicates a - (1) defective valve (2) poor oxygenation (3) dislocation of the heart (4) improper development of muscles

Description : Heart murmur indicates a - (1) defective valve (2) poor oxygenation (3) dislocation of the heart (4) improper development of muscles

Last Answer : (1) defective valve Explanation: Murmurs are pathologic heart sounds that are produced as a result of turbulent blood flow that is sufficient to produce audible noise. A functional murmur or " ... through which blood flows in or near the heart. Such murmurs are known as pathologic murmurs.

EEG records the activity of - (1) heart (2) lungs (3) brain (4) muscles

Description : EEG records the activity of - (1) heart (2) lungs (3) brain (4) muscles

Last Answer : (3) brain. Explanation: Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the ... of time, usually 20-40 minutes, as recorded from multiple electrodes placed on the scalp.

Which organ of the body never rests? (1) Muscles (2) Nerves (3) Tongue (4) Heart

Description : Which organ of the body never rests? (1) Muscles (2) Nerves (3) Tongue (4) Heart

Last Answer : (4) Heart Explanation: Heart is the only organ in the body which never rest throughout the entire life. The heart is a hollow muscle that pumps blood throughout the blood vessels by repeated, ... 72 beats per minute, will beat approximately 2.5 billion times during an average 66 year lifespan.

Name the muscles by which heart is made?

Description : Name the muscles by which heart is made?

Last Answer : Cardiac muscles

The muscles that are involved in pumping of heart are

Description : The muscles that are involved in pumping of heart are

Last Answer : cardiac muscles

One function of parasympathetic nervous system is (a) contraction of hair muscles (b) stimulation of sweat glands (c) acceleration of heart beat (d) constriction of pupil.

Description : One function of parasympathetic nervous system is (a) contraction of hair muscles (b) stimulation of sweat glands (c) acceleration of heart beat (d) constriction of pupil.

Last Answer : (d) constriction of pupil.

The correct route through which pulse-making impulse travels in the heart is (a) SA node → Purkinje fibres → bundle of His → AV node → heart muscles (b) SA node → AV node → bundle of His → Purkinje fibres → heart muscles(c) AV node → bundle of His → SA node → Purkinje fibres → heart muscles (d) AV node → SA node → Purkinje fibres → bundle of His → heart muscles.

Description : The correct route through which pulse-making impulse travels in the heart is (a) SA node → Purkinje fibres → bundle of His → AV node → heart muscles (b) SA node → AV node → bundle of His → Purkinje ... fibres → heart muscles (d) AV node → SA node → Purkinje fibres → bundle of His → heart muscles.

Last Answer : (b) SA node → AV node → bundle of His → Purkinje fibres → heart muscles

Rate of heart beat is determined by (a) Purkinje fibres (b) papillary muscles (c) AV node (d) SA node.

Description : Rate of heart beat is determined by (a) Purkinje fibres (b) papillary muscles (c) AV node (d) SA node.

Last Answer : (d) SA node.

The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its correct location and function? (A) (B) (C) (D) Tissue Location Function (a) (B) Glandular Intestine Secretion epithelium (b) (C) Collagen Cartilage Attach skeletal fibres muscles to bones(c) (D) Smooth Heart Heart muscle contraction tissue (d) (A) Columnar Nephron Secretion epithelium and absorption

Description : The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its ... Smooth Heart Heart muscle contraction tissue (d) (A) Columnar Nephron Secretion epithelium and absorption

Last Answer : (a) (B) Glandular Intestine Secretion epithelium

Identify the tissue shown in the diagram and match with its characteristics and its location. (a) Smooth muscles, show branching, found in the wall of the heart(b) Cardiac muscles, unbranched muscles, found in the walls of the heart (c) Striated muscles, tapering at both-ends, attached with the bones of the ribs (d) Skeletal muscles show striations and are closely attached with the bones of the limbs

Description : Identify the tissue shown in the diagram and match with its characteristics and its location. (a) Smooth muscles, show branching, found in the wall of the heart (b) Cardiac muscles, unbranched ... the ribs (d) Skeletal muscles show striations and are closely attached with the bones of the limbs

Last Answer : (d) Skeletal muscles show striations and are closely attached with the bones of the limbs

Smooth muscles are likely to be found in (1) muscles of legs (2) muscles of arms (3) stomach (4) heart

Description : Smooth muscles are likely to be found in (1) muscles of legs (2) muscles of arms (3) stomach (4) heart

Last Answer : stomach

EEG is a technique to record the activity of (1) heart (2) lungs (3) brain (4) muscles

Description : EEG is a technique to record the activity of (1) heart (2) lungs (3) brain (4) muscles

Last Answer : brain

EEG records the activity of (1) heart (2) lungs (3) brain (4) muscles

Description : EEG records the activity of (1) heart (2) lungs (3) brain (4) muscles

Last Answer : brain

What is an endoscope ? (1) It is an optical instrument used to see inside the alimentary canal (2) It is a device which is fitted on the chest of the patient to regularise the irregular heart beats (3) It is an instrument used for examining ear disorders (4) It is an instrument for recording electrical signals produced by human muscles

Description : What is an endoscope ? (1) It is an optical instrument used to see inside the alimentary canal (2) It is a device which is fitted on the chest of the patient to regularise the ... used for examining ear disorders (4) It is an instrument for recording electrical signals produced by human muscles

Last Answer :  It is an optical instrument used to see inside the alimentary canal

Heart murmur indicates a (1) defective valve (2) poor oxygenation (3) dislocation of the heart (4) improper development of muscles

Description : Heart murmur indicates a (1) defective valve (2) poor oxygenation (3) dislocation of the heart (4) improper development of muscles

Last Answer : defective valve

When a person enters a dark room from bright light he is not able to see clearly for little while because ______ A. Eye is unable to adjust itself immediately B. Retina becomes insensitive momentarily C. Iris is unable to dilate the pupil immediately D. Distance between the lens and retina take time to adjust

Description : When a person enters a dark room from bright light he is not able to see clearly for little while because ______ A. Eye is unable to adjust itself immediately B. Retina becomes insensitive ... is unable to dilate the pupil immediately D. Distance between the lens and retina take time to adjust

Last Answer : ANSWER: C

When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because (a) The hole acts as a convex lens (b) Light takes curvature at the edges of the hole (c) Of rectilinear propagation of light (d) The hole acts as a concave lens

Description : When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because (a) The hole acts as a convex lens (b) ... the edges of the hole (c) Of rectilinear propagation of light (d) The hole acts as a concave lens

Last Answer : Ans:(b)

When a person enters a dark room from bright light, he is not able to see clearly for a little while because the (a) eye is unable to adjust itself immediately (b) retina becomes insensitive momentarily (c) iris is unable to dilate the pupil immediately (d) distance between the lens and retina takes time to adjust

Description : When a person enters a dark room from bright light, he is not able to see clearly for a little while because the (a) eye is unable to adjust itself immediately (b) retina becomes insensitive ... is unable to dilate the pupil immediately (d) distance between the lens and retina takes time to adjust

Last Answer : Ans:(c)

A little ether on the palm gives a cooling sensation because ether (a) is a cold liquid (b) evaporates (c) enters the pores of the skin (d) condenses on the palm

Description : A little ether on the palm gives a cooling sensation because ether (a) is a cold liquid (b) evaporates (c) enters the pores of the skin (d) condenses on the palm

Last Answer : Ans:(b)

When a person enters a dark room from bright light he is not able to see clearly for a little while because the? A. Eye is unable to adjust itself immediately B. Retina becomes insensitive momentarily C. Iris is unable to dilate the pupil immediately (Answer) D. Distance between the lens and retina take time to adjust

Description : When a person enters a dark room from bright light he is not able to see clearly for a little while because the? A. Eye is unable to adjust itself immediately B. Retina becomes insensitive ... to dilate the pupil immediately (Answer) D. Distance between the lens and retina take time to adjust

Last Answer : C. Iris is unable to dilate the pupil immediately (Answer)

In a Rankine cycle, regeneration results in higher efficiency because (a) Pressure inside the boiler increases [GATE-2003] (b) Heat is added before steam enters the low pressure turbine (c) Average temperature of heat addition in the boiler increases (d) Total work delivered by the turbine increases

Description : In a Rankine cycle, regeneration results in higher efficiency because (a) Pressure inside the boiler increases [GATE-2003] (b) Heat is added before steam enters the low pressure turbine (c) ... temperature of heat addition in the boiler increases (d) Total work delivered by the turbine increases 

Last Answer : (c) Average temperature of heat addition in the boiler increases  

After drinking a glass of orange juice, how long does it take before the sugar enters my blood?

Description : After drinking a glass of orange juice, how long does it take before the sugar enters my blood?

Last Answer : just a few minutes depending on what else is in the stomach at the time

The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the deoxygenated blood through diffusion bec

Description : The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the deoxygenated blood through diffusion bec

Last Answer : The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the ... it 40mm Hg and 46 mm Hg respectively

What does the material that leaves the blood and enters the nephron make up?

Description : What does the material that leaves the blood and enters the nephron make up?

Last Answer : Need answer

Cerebrospinal fluid: a. is produced mainly by the lateral, third and fourth ventricles b. enters the subarachnoid space through foramina Lushka and Magendie c. is reabsorbed mainly into the lymphatics d. production is dependent of the blood pressure

Description : Cerebrospinal fluid: a. is produced mainly by the lateral, third and fourth ventricles b. enters the subarachnoid space through foramina Lushka and Magendie c. is reabsorbed mainly into the lymphatics d. production is dependent of the blood pressure

Last Answer : is produced mainly by the lateral, third and fourth ventricles

The ________form of the malarial parasite enters the human blood while The_____ enters the mosquito. a. Sporozoites; Merozoites b. Merozoites; Gametocytes c. Merozoites; Sporozoites d. Sporozoites; Gametocytes

Description : The ________form of the malarial parasite enters the human blood while The_____ enters the mosquito. a. Sporozoites; Merozoites b. Merozoites; Gametocytes c. Merozoites; Sporozoites d. Sporozoites; Gametocytes

Last Answer : d. Sporozoites; Gametocytes

Enhanced automaticity in cardiac cells may occur because of (a) ß-adrenergic stimulation (b) Hypokalemia (c) Mechanical stretch of cardiac muscles (d) All of the above

Description : Enhanced automaticity in cardiac cells may occur because of (a) ß-adrenergic stimulation (b) Hypokalemia (c) Mechanical stretch of cardiac muscles (d) All of the above

Last Answer : Ans: D

It is much easier for a small animal to run uphill than for a large animal, because (a) small animals have a lower O2 requirement (b) the efficiency of muscles in large animals is less than in the small animals (c) it is easier to carry a small body weight (d) smaller animals have a higher metabolic rate.

Description : It is much easier for a small animal to run uphill than for a large animal, because (a) small animals have a lower O2 requirement (b) the efficiency of muscles in large animals is less than in the ... (c) it is easier to carry a small body weight (d) smaller animals have a higher metabolic rate.

Last Answer : (d) smaller animals have a higher metabolic rate.

Low concentration of bupivacaine is preferred for spinal / epidural obstetric analgesia because: A. It has a longer duration of action B. It can produce sensory blockade without paralysing abdominal muscles C. It distributes more in maternal tissues so that less reaches the foetus D. All of the above are correct

Description : Low concentration of bupivacaine is preferred for spinal / epidural obstetric analgesia because: A. It has a longer duration of action B. It can produce sensory blockade without paralysing abdominal muscles C. ... in maternal tissues so that less reaches the foetus D. All of the above are correct

Last Answer : D. All of the above are correct

In rabbit food does not normally enter into the wind pipe because during feeding (a) Epiglottis and tongue cover the glottis (b) Nodule called cartilage of santorini plug the larynx (c) The cartilage called arytenoid lie between larynx and glottis (d) The circular muscles at the front of trachea contract and close its opening

Description : In rabbit food does not normally enter into the wind pipe because during feeding (a) Epiglottis and tongue cover the glottis (b) Nodule called cartilage of santorini plug the larynx (c) The ... larynx and glottis (d) The circular muscles at the front of trachea contract and close its opening

Last Answer : (a) Epiglottis and tongue cover the glottis

$ The tissue which connects a bone to the muscles is called cartilage. ! Haemoglobin of blood combines permanently with oxygen

Description : $ The tissue which connects a bone to the muscles is called cartilage. ! Haemoglobin of blood combines permanently with oxygen

Last Answer : $ The tissue which connects a bone to the muscles is called cartilage. ! Haemoglobin of blood combines ... wrong D. If both As and R are wrong.

In the normal resting state of human most of the blood glucose burnt as fuel is consumed by (A) Liver (B) Brain (C) Adipose tissue (D) Muscles

Description : In the normal resting state of human most of the blood glucose burnt as fuel is consumed by (A) Liver (B) Brain (C) Adipose tissue (D) Muscles

Last Answer : Answer : B