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1) Under which of these situations the rate of heartbeat is accelerated by noradrenaline: a. Stress b. Anger c. Excitement d. All of these
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2) Under which of these conditions, the heart rate is retarded by liberating acetylcholine: a. Rest b. Sleep c. Both (a) & (b) d. None of these
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3) During condition of fever the rate of our hearbeat will be: a. Increased b. Decreased c. First increased then decreased d. Unchanged
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4) The heart rate of a person having 102?F temperature as compared to a person having normal temperature will be: a. Increased b. Decreased c. Normal d. First increased then decreased
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5) What will happen to our heart beat in case our body temperature is decreased: a. Increased b. Decreased c. First increased then decreased d. Nothing
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6) Why do we have techycardia during fever? a. Because the increase in temperature increase the heart rate b. Because parasympathetic system releases more sympathin c. Because more acetylcholine is liberated at the free nerve endings of sympathetic nerve fibres d. Because of some reason other than these
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7) An increase in the heart rate is termed: a. Bradycardia b. Tachycardia c. Tachybradycardia d. None of these
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8) A decrease in the rate of beating of heart is called: a. Bradycardia b. Tachycardia c. Bradytachycardia d. None of these
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9) Free nerve endings of sympathetic nervous system will release which of these substances during the condition of tachycardia in our body: a. Acetylcholine b. Adrenaline c. Noradrenaline d. None of these
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10) Which of these substances will be produced by our body in order to bring state of bradycardia: a. Acetylchoiline b. Adrenaline c. Both (a) & (b) d. None of these
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11) Which of these will be produced in the body during fever when we have tachycardia: a. Adrenaline b. Noradrenaline c. Both (a) & (b) d. None of these
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12) If a person is given an injection of noradrenaline, then his heart would show: a. Bradycardia b. Techycardia c. Both (a) & (b) d. None of these
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13) Hypoxia in our body would: a. Increase our heart rate b. Decrease our heart rate c. Bring first increase then decrease d. Not at all affect heart rate
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14) Hypoxia in our body would bring which of these conditions: a. Bradycardia b. Tachycardia c. Both (a) & (b) d. None of these
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15) A person having high concentration of CO2 in his blood would have: a. Slow heart rate b. Accelerated heart rate c. Both (a) & (b) d. None of these
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16) Fall in the concentration of CO2 in one's blood will induce: a. Bradycardia b. Tachycardia c. Both (a) & (b) d. None of these
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17) Which of these situations may be present in the body during tachycardia: a. Increase in body temperature b. Increase in CO2 level of blood c. Both (a) & (b) d. None of these
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18) A person having bradycardia is likely to have which of the following: a. Increase in concentation of blood oxygen level b. Low temperature of his body c. Both (a) & (b) d. None of these
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19) A person having hypoxia, high temperature and increased CO2 level in his blood would likely have: a. Bradyeardia b. Tachycardia c. Both (a) & (b) d. None of these
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20) After coming from gymnaseum, our heart rate would be: a. Increased b. Decreased c. Both increased and decreased d. Unchanged
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21) During exercise a person is likely to have: a. Bradycardia b. Tachycardia c. Both (a) & (b) d. None of these
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22) During Ischaemia of myocardium the blood supply to muscles of heart in coronary artery is: a. Reduced b. Increased c. Often increased and often decreased d. Not affected
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23) One of the main causes of ischaemia of myocardium is: a. Deposition of fats an arterial walls called arteriosclerosis b. Disturbance in the balance of electrolytes c. Both of these reasons together d. None of these altogether
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24) Ichaemia of myocardium in a person may often lead to: a. Mycardial infraction b. Tachycardia c. Bradycardia d. None of these
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25) Blood pressure is the force which: a. Heart exerts on blood going out of it b. Blood pushes against the walls of blood vessels c. Blood vessels exert on the blood d. None of these but something else
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26) Systolic blood pressure in a young man normally is: a. 70mm of Hg b. 80mm of Hg c. 100mm of Hg d. 120mm of Hg
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27) Diastolic blood pressure in a normal healthy man is: a. 60mm of Hg b. 80mm of Hg c. 100mm of Hg d. 120mm of Hg
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28) Instrument for measuring blood pressure is called: a. Sphygnomanometer b. Electrocardiograph c. Stethescope d. None of these
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29) Regulation of heart beat in mammals is only due to: a. Presence of excess oxygen into blood b. Presence of pace-maker in the heart c. Presence of thyroxine in the blood d. Volume of blood in the system
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30) Persons suffering from hypertension should take following precautions in order to avoid excessive rise in he their blood pressure: a. Avoid standing b. Avoid emotional disturbances and excitements c. Sleep as much as possible d. Increase their body weight
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31) Pace-maker in heart of man influences: a. Contraction of pelvis b. Rate of heartbeat c. Contraction of heart muscles d. Nerve impulse formation
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32) A pace-maker is found in the: a. Liver b. Brain c. Heart d. Lungs
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33) Heart beat in man is initiated by: a. SA-Node b. AV-Node c. Purkinjie fibres d. Carotid labyrinth
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34) Sphygnomanometer means an instrument that measures: a. Heart rate b. Blood pressure c. Pulse rate d. All of these
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35) Heart beat is under the control of: a. Vagus nerve b. Glossopharyngeal nerve c. Autonomic system d. None of these
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36) During diastole the: a. Blood enters the heart b. Blood leaves the heart c. Blood leaves the ventricle d. Blood enters the lungs
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37) Heart beat is conducted by a nodal tissue made up of specialized muscles called: a. Myonemes b. Purkinjie fibres c. Telodendrites d. Collagen fibres
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38) Physiology of blood circulation was first described by: a. William Harvy b. Carl Landsteiner c. Carl Correns d. None of these
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39) Role of pace-maker is: a. To increase heart beat b. To decrease the heart beat c. To initiate the heart beat d. To control the blood supply to heart
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40) Pulse is defined as: a. An alternate expansion and recoil of an artery b. Ventricular systole during which bllod is passed into ventricles of heart c. Clossure of semilunar valves at the entrance of aortae d. None of these
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41) Electrocardiogram is: a. Recording of electrical activity in the heart b. Recording of passage of nerve impulses in the heart c. Recording of cardiac outputs in the heart d. None of these
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42) P-wave in electrocardiogram is produced by: a. Activation of SA-Node b. Contraction of ventricles c. Discharge of impulse from AN-Node d. Beginning of ventricular relaxation
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43) P-wave in the electrocardiogram is produced by: a. Beginning of ventricular relaxation b. Beginning of ventricular contraction c. Activation of SA-Node d. None of these
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44) Percentage of blood contained in pulmonary circulation in man is: a. 16% b. 20% c. 25% d. 12%
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45) Which one is the percentage of blood contained in the heart in man is: a. 7% b. 9% c. 10% d. 12%
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46) Flow of blood in large arteries is: a. 500mm per second b. 300mm per second c. 250mm per second d. None of these
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47) Flow in medium sized arteries is: a. 250mm per second b. 125mm per second c. 300mm per second d. 400mm per second
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48) The total cross-sectional area of capillaries in man is: a. 100 times that of aorta b. 200 times that of aorta c. 400 times that of aorta d. 500 times that of aorta
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49) Flow of blood in the capillaries of man will be: a. 1/500 times that of aorta b. 1/250 times that of aorta c. 1/750 times that of aorta d. None of these
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50) The rate of blood flow in capillaries of man will be: a. 1mm per second b. 2mm per second c. 5mm per second d. None of these
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51) Which of these muscles in the body have no pause and fatigue: a. Skeletal muscles b. Cardiac muscles c. Both (a) & (b) d. None of these
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52) The depressor nerve in the heart is a branch of: a. 8th cranial nerve b. 9th cranial nerve c. 10th cranial nerve d. None of these
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53) Heart in vertebrates is: a. Neurogenic b. Myogenic c. Both (a) & (b) d. None of these
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54) Heart rate in neurogenic hearts in increased by release of: a. Acetylcholine b. Noradrenaline c. Both (a) & (b) d. None of these
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55) Heart rate in neurogenic hearts is decreased by release of: a. Noradrenaline b. Acetylcholine c. Both (a) & (b) d. None of these
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56) Non-stop rhythmic contractions and expansions occur in which of these organs: a. Kidney b. Liver c. Heart d. Brain
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57) Which of these hearts may function even in absence of a nervous control: a. Heart of Pila b. Heart of rabbit c. Both (a) & (b) d. None of these
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58) Which of the following organs is involved to help us feel the earthquake: a. Eye b. Skin of sole c. Ear d. None of these
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59) During night the slow intensity of light is detected by: a. Cones b. Rods c. Both (a) & (b) d. Crystalline lens
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60) Night blindness is caused by: a. Hypermetropia b. Myopia c. Defective cornea d. Deficiency of rhodopsin
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