Description : Which of the following statement(s) is/are true concerning oxygen consumption (O2)? a. O2 is normally 100-120 cc2/m2/min b. Resting O2 is controlled by the level of thyroid and catecholamine ... of oxygen taken up by the pulmonary capillaries d. O2 is dependent on the status of pulmonary function
Last Answer : Answer: a, b Oxygen consumed in the process of metabolism is expressed as the volume of oxygen per minute (O2). O2 is normally 100-120 cc2/m2/min, or 200 cc/min for a typical adult. ... , so we measure O2 across the lung and assume that it is exactly the amount consumed in the systemic metabolism
Description : Blood capillaries are made of (a) endothelium, connective tissue and muscle fibres (b) endothelium and muscle fibres (c) endothelium and connective tissue (d) endothelium only.
Last Answer : d) endothelium only.
Description : Which of the following is not true of the blood-brain barrier: A. It is constituted by tight junctions between the endothelial cells of brain capillaries and the glial tissue B. It allows passage ... of highly ionized drugs into the brain D. It regulates passage of substances from brain into blood
Last Answer : D. It regulates passage of substances from brain into blood
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
Description : In the normal resting state of humans, most of the blood glucose burned as fuel is consumed by (A) Liver (B) Adipose tissue (C) Muscle (D) Brain
Last Answer : Answer : A
Description : The normal resting state of humans, most of the blood glucose burnt as “fuel” is consumed by (A) Liver (B) Brain (C) Kidneys (D) Adipose tissue
Last Answer : B
Description : (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 ... the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood? -Biology
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.
Description : Assertion `:` Lymph is the filtered blood from capillaries, which is rich in oxygen, but devoid of RBC. Reason `:` RBC can filter out due to small dia
Last Answer : Assertion `:` Lymph is the filtered blood from capillaries, which is rich in oxygen, but devoid of RBC ... . D. If both Assertion & Reason are false.
Description : Which one of the following are cardinal features of granulation tissue? C A. Abundant collagen B. Proliferating macrophages and lymphocytes C. Proliferating capillaries and fibroblasts D. None of these
Last Answer : Proliferating capillaries and fibroblasts
Description : Useful steps to optimize systemic oxygen delivery include: a. Maintaining mean arterial blood pressure between 50 and 90 mm Hg b. Optimizing PEEP levels by monitoring mixed venous saturation c. Turning the patient prone d. Sedation or paralysis
Last Answer : Answer: a, b, c, d Optimizing systemic oxygen delivery in relationship to oxygen requirement is the primary goal of management. Improving oxygenation of the blood itself by ... sedation, and establishing muscular paralysis decrease oxygen consumption, and decrease the need for oxygen delivery
Description : Which of the following statement(s) is/are true concerning O2 venous saturation monitoring? a. The normal saturation of mixed venous blood is 50% b. Mixed venous blood obtained ... than fully saturated blood, the difference between arterial and venous saturation corresponds to oxygen extraction
Last Answer : Answer: c, d The relationship between oxygen delivery and oxygen consumption is reflected in the amount of oxygen in venous blood. Under normal circumstances, oxygen delivery is 1000 ... and venous saturation corresponds to the oxygen extraction, hence the oxygen delivery/oxygen consumption ratio
Description : A large proportion of oxygen remains unused in the human blood even after its uptake by the body tissues. This O2 (a) acts as a reserve during muscular exercise (b) raises the pCO2 of ... enough to keep oxyhaemoglobin saturation at 96% (d) helps in releasing more O2 to the epithelial tissues.
Last Answer : (a) acts as a reserve during muscular exercise
Description : When the nurse observes that the postoperative patient demonstrates a constant low level of oxygen saturation, although the patient's breathing appears normal, the nurse identifies that the patient may ... , and cardiac arrest. d) Anemic Anemic hypoxemia results from blood loss during surgery.
Last Answer : a) Subacute Supplemental oxygen may be indicated.
Description : The characteristic feature(s) of penicillin G is/are: A. It is unstable in aqueous solution B. Its antibacterial action is unaffected by pus and tissue fluids C. It is equally active against resting and multiplying bacteria D. Both ‘A’ and ‘B’ are correc
Last Answer : D. Both ‘A’ and ‘B’ are correct
Description : Why does bleeding occur through the nose in high mountainous regions? (1) The pressure of blood in capillaries is greater than the outside pressure (2) The pressure at high altitudes is ... of a person increases at high altitudes (4) The blood pressure fluctuates and finally decreases drastically
Last Answer : (3) The blood pressure of a person increases at high altitudes Explanation: Nose bleeds can occur at high altitudes. The bleeding may be caused by the change in air pressure associated with the ... of blood from the nostrils. Stress and anxiety raises the blood pressure, complicating the nose bleed.
Description : Why does bleeding occur through the nose in high mountainous regions ? (1) The pressure of blood in capillaries is greater than the outside pressure (2) The pressure at high altitudes is ... of a person increases at high altitudes (4) The blood pressure fluctuates and finally decreases drastically
Last Answer : The blood pressure of a person increases at high altitudes
Description : Given below graphs an oxygen dissociation curve `:-` Where in the body will haemoglobin be saturation at the percentage shown at points X,Y and Z.
Last Answer : Given below graphs an oxygen dissociation curve `:-` Where in the body will haemoglobin be ... ventricle , Y-Right ventricle, Z-Systemic artery
Description : Which of the following statement(s) is/are true concerning the pathophysiology of gas exchange? a. Hypoventilation in relation to perfusion can result in an oxygen saturation of less than 100% ... does not occur under normal circumstances d. The normal arterial oxygen saturation should be 100%
Last Answer : Answer: a, b Under normal conditions, red blood cells in the pulmonary capillaries become fully saturated and oxygen dissolves in plasma resulting in blood PO2 of 100 and O2 saturation of 100%. This ... the fact that normal arterial PO2 is 90-100 mm Hg and the normal O2 saturation is 98%
Description : Assertion `:` Portal system consists of veins which start from capillaries and end into capillaries. Reason `:` The hepatic portal vein carries blood
Last Answer : Assertion `:` Portal system consists of veins which start from capillaries and end into capillaries. ... D. If both Assertion & Reason are false.
Description : Assertion `:` A portal system start and ends with blood capillaries. Reason `:` A portal system collec blood from a organ or organs and distribute thi
Last Answer : Assertion `:` A portal system start and ends with blood capillaries. Reason `:` A portal system collec ... . D. If both Assertion & Reason are false.
Description : In order of study blood circulation in rat, capillaries are observe in
Last Answer : In order of study blood circulation in rat, capillaries are observe in A. Mesentery B. Kidney to liver C. Liver D. Lung
Description : Blood circulation that starts in capillaries and ends in capillaries is called
Last Answer : Blood circulation that starts in capillaries and ends in capillaries is called A. Portal circulation B. Hepatic circulation C. Cardiac arrest D. None
Description : Blood capillaries are made of
Last Answer : Blood capillaries are made of A. Endothelium and thin coat of connective tissue B. Endothelium ... tissue and muscle fibres D. Only endothelium
Description : Cells forming the wall of blood capillaries are called
Last Answer : Cells forming the wall of blood capillaries are called A. Oxyntic cells - a secretion with pH ... . Endothelium cells C. Perietal cells D. Haemocytes
Description : Networks of Blood Capillaries and Large Lymph vessel is present in :-
Last Answer : Networks of Blood Capillaries and Large Lymph vessel is present in :- A. Villi B. Microvilli C. Both 1 & 2 D. Plica semilunaris
Description : $ The antideuretic hormone (ADH) is also calle Vasopressin hormone. ! Those blood vessels which carry blood away from heart are called capillaries.
Last Answer : $ The antideuretic hormone (ADH) is also calle Vasopressin hormone. ! Those blood vessels which carry blood ... wrong D. If both As and R are wrong.
Description : High blood pressure is maintained in glomeruli than in other capillaries because
Last Answer : High blood pressure is maintained in glomeruli than in other capillaries because A. The variability ... diameter than glomerulus D. All the above
Description : How does blood change as it passes through the capillaries around your small intestine?
Last Answer : What is the answer ?
Description : How is the alveoli adapted for gas exchange between air in the lungs and blood in the capillaries?
Last Answer : Need answer
Description : Which of the following statement(s) is/are true concerning the treatment of pulmonary interstitial edema? a. Diuresis and blood transfusion is a valuable step b. Salt-poor albumin leaks through the ... a diuretic in this clinical situation d. Isoproterenol is a poor choice as an ionotropic agent
Last Answer : Answer: a Treatment of pulmonary edema has two important goals, the first is to improve oxygenation if it is impaired, and the second is to minimize fibrosis and bacterial infection, which often ... leaks out , the short term effects of expanding blood volume and decrease in edema will appear
Description : Which of the following blood vessels carry blood from the human body to the heart? A. Veins B. Arteries C. Capillaries D. None of these
Last Answer : ANSWER: A
Description : In high mountain regions bleeding through nose occurs because (a) The pressure of the blood capillaries is higher than the outside pressure (b) The pressure at high altitudes is greater than ... c) The blood pressure increases at high altitudes (d) The blood pressure decreases at high altitudes
Last Answer : Ans:(a)
Description : Which blood vessels have the smallest diameter? (1) Capillaries (2) Arterioles (3) Venules (4) Lymphatic
Last Answer : (1) Capillaries Explanation: Blood is carried through the body by Blood Vessels. With the help of perfusion process capillaries supplies blood to the tissues.
Description : Which of the following structures present in mammalian skin directly helps in keeping the body warm? (1) Pigmented cells (2) Sweat glands (3) Lymph vessels (4) Blood capillaries
Last Answer : (2) Sweat glands Explanation: In the skin, two types of glands are present.
Description : Blood pressure is the pressure exerted by blood on the walls of – (1) Heart (2) Veins (3) Arteries (4) Capillaries
Last Answer : (3) Arteries Explanation: Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the ... blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.
Last Answer : (3) Lymph vessels Explanation: The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and ... skin and in the deeper fatty tissues near the muscles and can be found near arteries.
Description : The following are true about micro-circulation: a. arterioles have no muscle b. capillaries have walls made up of a single layer of cells c. capillaries have no innervation d. the capillaries contain 5% of the total blood volume at any one time
Last Answer : he capillaries contain 5% of the total blood volume at any one time
Description : Which one of the following correctly explains the function of a specific part of the human nephron? (a) Podocytes : create minute spaces (slit pores) for the filtration of blood into the ... blood capillaries (d) Afferent arteriole : carries the blood away from the glomerulus towards renal vein.
Last Answer : (a) Podocytes : create minute spaces (slit pores) for the filtration of blood into the Bowman’s capsule
Description : Arteries are best defined as the vessels which (a) supply oxygenated blood to the different organs (b) carry blood away from the heart to different organs (c) break up into capillaries which reunite to form a vein (d) carry blood from one visceral organ to another visceral organ
Last Answer : (b) carry blood away from the heart to different organs
Description : Which statement is true for WBC? (a) Non-nucleated (b) In deficiency, cancer is caused (c) Manufactured in thymus (d) Can squeeze through blood capillaries
Last Answer : (d) Can squeeze through blood capillaries
Description : Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions ... amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.
Last Answer : (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na
Description : 6 The blood-brain barrier, which restricts entry of many drugs into brain, is constituted by: A. P-glycoprotein efflux carriers in brain capillary cells B. Tight junctions between endothelial cells of brain capillaries C. Enzymes present in brain capillary walls D. All of the above
Last Answer : D. All of the above
Description : The blood-brain barrier, which restricts entry of many drugs into brain, is constituted by: A. P-glycoprotein efflux carriers in brain capillary cells B. Tight junctions between endothelial cells of brain capillaries C. Enzymes present in brain capillary walls D. All of the above
Description : The most important factor which governs diffusion of drugs across capillaries other than those in the brain is: A. Blood flow through the capillary B. Lipid solubility of the drug C. pKa value of the drug D. pH of the medium
Last Answer : A. Blood flow through the capillary