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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
401. |
Open type circulatory system is present in which phylum? |
Answer» Correct Answer - Mollusca, Arthropoda | |
402. |
Open circulatory system is present in `underline(("i"))` and `underline(("ii"))`. Fill the correct option for (i) and (ii)A. `"(i)-platyhelminthes (ii)-molluscs"`B. `"(i)-arthropods (ii)-echinoderms"`C. `"(i)-annelids (ii)-arthropods"`D. `"(i)-arthropods (ii)-molluscs"` |
Answer» Correct Answer - D Open circulatory system is present in arthropods and mollusus in which blood pumped by the heart passes through large vessels into open spaces or body cavities called sinuses. |
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403. |
Impulse originating from sinu-atrial node are transmitted to theA. Atrio-ventricular nodeB. Bundle of HisC. pacemakerD. Purkinje system |
Answer» Correct Answer - A Transmission of impulse occurs as S-A node `to` A-V node `to` Bundle of His `to` purkinje system. |
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404. |
Impulse originating from sinu-atrial node are transmitted to theA. PacemakerB. Bundle of HisC. Purkinje systemD. Atrioventricular node |
Answer» Correct Answer - D | |
405. |
Normal blood level of calcium in adults isA. 20-30 mg/dlB. `15.5-20.0 mg//dl`C. `8.5-10.5mg//dl`D. 5 mg/dl |
Answer» Correct Answer - C Normal blood level of calcium in adults in `8.5-10.5` mg/dl |
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406. |
Valves occur inA. Arteries, veins and auriclesB. Atria , ventricles and veinsC. Arteries , veins and ventriclesD. SA node, AV node and veins |
Answer» Correct Answer - B | |
407. |
Sympathetic stimulationA. decreases blood pressureB. increases heartbeatC. decreases heartbeatD. not related to heartbeat |
Answer» Correct Answer - B | |
408. |
___ are cell fragments rather than true cellsA. ErythrocytesB. GranulocytesC. ThrombocytesD. Agranulocytes |
Answer» Correct Answer - C | |
409. |
A cardiac cycle invlovesA. Joint diastole - ventricular systole-auricular systoleB. Auricular systole-ventricular systole-complete cardiac distoleC. Auricular systole-joint diastole-ventricular systoleD. Auricular systole-ventricular diastole-joint diastole |
Answer» Correct Answer - B | |
410. |
The opening of pulmonary vein is without valve becauseA. It is a very small apertureB. It has low blood pressureC. Its opening is obliqueD. None of these |
Answer» Correct Answer - C | |
411. |
Spiral valve is present inA. Right auricleB. Left auricleC. Right ventricleD. Truncus arteriosus |
Answer» Correct Answer - D Spiral valve is a valve present in truncus arteriosus of amphibian heart guiding flow of different type of blood in three aortic arches. |
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412. |
Mark the pair of substances among the following which is essential for coagualation of bloodA. Heparin and calcium ionsB. Calcium ions and platelet factorsC. Oxalates and citratesD. Platelet factors and heparin |
Answer» Correct Answer - B | |
413. |
ECG depicts the depolarization and repolarisation processes during the cardiac cycle. In the ECG of a normal healthy individual one of the following waves is not representedA. Depolarisation of atriaB. Repolarisation of atriaC. Depolarisation of ventriclesD. Repolarisation of ventricles |
Answer» Correct Answer - B | |
414. |
Match the items given in Column I with those in Column II and select the correct option given below `{:(,"Column I",,"Column II"),((A),"Fibrinogen",(i),"Osmotic balance"),((B),"Globulin",(ii),"Blood clotting"),((C),"Albumin",(iii),"Defence mechanism"):}`A. `{:(a,b,c),(ii,iii,i):}`B. `{:(a,b,c),(i,iii,ii):}`C. `{:(a,b,c),(i,ii,iii):}`D. `{:(a,b,c),(iii,ii,i):}` |
Answer» Correct Answer - A | |
415. |
In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart ?A. R-repolarisation of ventriclesB. S-start of systoleC. T-end of diastoleD. P-deplarization of the atria |
Answer» Correct Answer - D | |
416. |
In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart ?A. S - start of systoleB. T - end of diastoleC. P - depolarisation of the atriaD. R - repolarisastion of ventricles |
Answer» Correct Answer - C In a standard ECG, the P wave is a small upward wave that represents depolarisation of atria which leads to contraction of both atria. |
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417. |
Which of the following statements is correct ?A. The T-wave in an ECF represent excitation of ventriclesB. The sum of P and T waves in a given time period can determine that heart beat rate of an individualC. The end of the P-wave marks the end of the systoleD. In a standard ECG, a person is connected to the machine with three electrical leads. |
Answer» Correct Answer - D In a standard ECG, a patient is connected to the machine with three electrical leads, one to each wrist and one to the left ankle. |
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418. |
Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion (c) If the assertion is true but the reason is false (d) If both the assertion and reason are false (e) If the assertion is false but reason is true Assertion : Saline water in not given to patients of hypertension. Reason : Saline water can cause vomiting and may drop blood pressure suddenly causing cardiac arrest. |
Answer» Correct Answer - C Saline water is not given to a patient of hypertension because it may cause rise in blood pressure which may be fatal to patient. |
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419. |
Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion (c) If the assertion is true but the reason is false (d) If both the assertion and reason are false (e) If the assertion is false but reason is true Assertion : The muscle fibres of SA node posses the lowest rhythmicity among all cardiac muscle fibres. Reason : Due to this fact it can initiate excitory waves at the highest rate |
Answer» Correct Answer - E SA node and AV node are the contraction node. SA node possess the highest rhythmicity among all cardiac muscle fibres and can initiate excitory wave at highest rate. |
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420. |
Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion (c) If the assertion is true but the reason is false (d) If both the assertion and reason are false (e) If the assertion is false but reason is true Assertion : EEG is of immense diagnostic value in the cardiac diseases. Reason : Defects in cardiac functions can be reflected in changes in the patten of electrical potentials recorded in the EEG. |
Answer» Correct Answer - D As the cardiac impulse spreads over the cardiac chambers and causes their contractions, electrical changes sweep over the cardiac chambers in a specific sequence. These changes in the electrical potential over the heart can be recoreded by fixing leads on two arms, the left leg and the chest and connecting them to an apparatus called electrocardiograph. the record is called electrocardiogram (ECG). An electrocardiogram is the recording of the various events of the cardiac cycle. Defects in cardiac functions or structures are reflected in changes in the pattern of electrical potentials recorded in the ECG. the ECG is , therefore of immense diagnostic value in cardiac disease.On the other hand , EEG is an index of the brain functions. EEG or electroencephalogram represents the spontaneous electrical activity of the brain as recorded from the electrodes placed on the scalp. EEG wave pattern obtained shows certain characterstic features of the brain like the frequency amplitude of the signals of brain. thus any deviation from the normal caused either by brain disease or change in the physiological state of the brain can be easily detected by EEG. |
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421. |
Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion (c) If the assertion is true but the reason is false (d) If both the assertion and reason are false (e) If the assertion is false but reason is true Assertion : blood flows at a very show velocity in the lacunae and sinuses of prawn. Reason : This happens because of the absence of heart in the prawn. |
Answer» Correct Answer - C Lacunae and sinuses are the open spaces and channels present in the tissues of prawn.Prawn possesses a heart which pumps the oxygenated blood into some arteries. These arteries directly open into the lacunae and sinuses. The tissues are thus in direct contact with blood.A sufficiently high blood pressure, however, cannot be maintained in the open lacunae and sinuses inspite of the pumping action of the heart. So blood, flow at a very slow velocity in the lacunae and sinuses. |
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422. |
Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion (c) If the assertion is true but the reason is false (d) If both the assertion and reason are false (e) If the assertion is false but reason is true Assertion : Blood pressure is arterial blood pressure. Reason : It is measured by sphygmomanometer. |
Answer» Correct Answer - B Blood pressure is the arterial blood pressure taken in left brachial artery and the instrument used to measure blood pressure is sphygmomanometer. |
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423. |
Cardiac output is defined asA. heart rate times stroke volumeB. peripheral resistance times heart rateC. blood pressure minus peripheral resistanceD. blood pressure times peripheral resistance |
Answer» Correct Answer - D | |
424. |
Which of the following is the correct statement about the circulatory system of cockroachA. it is closed type of circulatory systemB. it is complicated type of circulatory systemC. it takes place without the participation of tissueD. it has 13-chambered heart and in each segment one pair of ostia are present |
Answer» Correct Answer - D | |
425. |
Which ones have open circulatory system? 1. Ascidia 2. Cockroach 3. Earthworm 4. Prawn 5. Silver Fish 6. Snail 7. SquidA. 2,4,6B. 1,2,4,6C. 3,4,5,7D. 2,4,5,6 |
Answer» Correct Answer - D Open circulatory system is found in cockroach, prawn, silver fish and snail. |
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426. |
Mitral valve is present betweenA. Right atrium and right ventricleB. Left aatrium and left ventricleC. Right and left ventricleD. Left ventricle and aorta |
Answer» Correct Answer - B | |
427. |
Heart of Cockroach isA. 13 chamberedB. 29 chamberedC. 9 chamberedD. 6 chambered |
Answer» Correct Answer - A | |
428. |
Blood group agglutinogen isA. glycoproteinB. phosphoroteinC. haemoproteinD. phospholipid |
Answer» Correct Answer - A | |
429. |
Kidney-shaped nucleus occurs inA. NeutrophilB. EosinophilC. MonocyteD. Lymphocyte |
Answer» Correct Answer - C Kidney-shaped nucleus occurs in monocyte. |
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430. |
Which side of the heart contains oxygenated (pure) blood ? |
Answer» Correct Answer - Left. | |
431. |
Which of the following statements is correct regarding neutral regulation of cardiac activity ?A. The cardiac centre lies in medulla oblongata of brainB. Sympathetic nerve fibres accelerate the rate of heart beat and parasympathetic nerve fibres retard the rate of heart beatC. Sensory fibres extend from the receptors present in the walls of aortic arch, carotid sinuses and vena cava to the cardiovascular centre in medulla oblongataD. all of these |
Answer» Correct Answer - D | |
432. |
Hormonal regulation of cardiac activity involves the harmones `"_____"` and `"______"` secreted by the `"______"`A. epinephrine, norepinephrine, cortex of adrenal glandsB. epinephrine, norepinephrine, cortex of adrenal glandsC. thyroxine, calcitonin, thyroid glandD. aldosterone, corticosterone, cortex of adrenal glands |
Answer» Correct Answer - B | |
433. |
Blood pressure increases and heart rate decreases in response toA. ExerciseB. HeamorrageC. Exposure to high altitudeD. Increased intracranial pressure |
Answer» Correct Answer - D With the increase in intra cranial pressure the carebral blood flow is reduced. This increased pressure also stimulates the vasomotor centre and increases systemic blood pressure. |
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434. |
which one of the following statement is correct regarding blood pressureA. `190//110` mmHg may harm vital organs like brain and kidneyB. `130//90`mmHg is considered high and requires treatmentC. `100//55`mmHg is considered and ideal blood pressureD. `105//50`mmHg makes one very active |
Answer» Correct Answer - A Hypertenison occurs if the blood pressure is `190//110.` this can harm th vital organ like brain and kidneys. |
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435. |
Read the following statements and find out the incorrect statement.A. Through the heart is autoexcitable, its functions can be moderated by neural and hormonal mechanisms.B. Angina pectoris can occurs in men and women of any age but it is more common among the middleaged and elderly.C. Heart failure is same as cardiac arrest or heart attack.D. CAD is caused by deposits of calcium, fat, cholesterol and fibrous tissues, which makes the lumen of arteries narrower. |
Answer» Correct Answer - C Heart failure is not same as cardiac arrest or heart attack. |
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436. |
Angina occurs due to conditions that affects theA. Blood clottingB. Blood flowC. Cloure of bicuspid and tricuspid valvesD. Opening of the semilunar valves |
Answer» Correct Answer - B Angina occurs due to conditions that affects the blood flow. |
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437. |
Osmotic pressure is mintained by blood colloidA. AlbuminB. ThrombinC. FibrinogenD. Globulin. |
Answer» Correct Answer - A Osmotic pressure is maintained by albumin. |
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438. |
When the heart stop beating, it is calledA. Heart attackB. Heart failureC. Cardiac arrestD. CAD |
Answer» Correct Answer - C When the heart stop beating, it is called cardiac arest. |
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439. |
The rate of heart beat per minute is highest in case ofA. ElephantB. WhaleC. ManD. Mouse |
Answer» Correct Answer - D Under the normal conditions heart rate has an inverse relation with the size of the animal. |
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440. |
Mammals have biconcave RBC. The physiological use for it isA. To decrease the surface areaB. To increase the surface areaC. to be packed like coinsD. None of the above |
Answer» Correct Answer - B To allow relatively quick saturation and dissaturation with `O_(2) "and" CO_(2)`. |
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441. |
Which one of the following animals has two separate circulatory pathwaysA. LizardB. WhaleC. SharkD. Frog |
Answer» Correct Answer - B Whale is a mammal and has 4 chambered heart with 2 atria and 2 ventricles, oxygenated and deoxygenated blood flow on separate sides. |
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442. |
Megakaryocytes are present inA. BloodB. LiverC. BoneD. Bone marrow |
Answer» Correct Answer - D Megakaryocytes are present in bone morrow. |
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443. |
Which one represents pulmonary circulation ?A. Left auricle (oxygenated blood `to` lungs (deoxygenated blood `to` Right auricleB. Left auricle (deoxygenated blood `to` lungs (oxygenated blood `to` Right auricleC. Left auricle (oxygenated blood `to` lungs (deoxygenated blood `to` left auricleD. Right auricle (deoxygenated blood `to` lungs (oxygenated blood `to` Left auricle |
Answer» Correct Answer - D | |
444. |
Which one represents pulmonary circulation?A. Left auricle (oxygenated blood) `to` lungsB. Left auricle (deoxygenated blood) `to` lungsC. Left auricle (oxygenated blood) `to` lungsD. Right auricle (deoxygenated blood) `to` lungs (oxygented blood) `to` Left auricle |
Answer» Correct Answer - D Pathway of pulmonary ciruclation :Right auricle (deoxyenated blood) `to` lungs (oxygenated blood) `to` Left auricle |
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445. |
Which one represents pulmonary circulationA. In auricle (oxygenated blood)-lungs (deoxygenated blood)-Right auricleB. Left auricle (deoxygenated blood)-lungs (oxygenated blood)-Right auricleC. Leff auricle (oxygenated blood)-lungs (deoxygenated blood)-Left auricleD. Right auricle (deoxygenated blood)-lungs (oxygenated blood)-Left auricle |
Answer» Correct Answer - D Because pace maker of the heart is capable of initiating and regulating the heart beat. |
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446. |
Which one is not a blood group?A. ABO and RhB. Rh and MNC. Buffs and KipsD. Lewis and Duffy |
Answer» Correct Answer - C Buffs and kips is not a blod group. |
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447. |
Which one of the following represents pulmonary circulation ?A. Left atrium `to` Lungs `to` Right atriumB. Left atrium `to` Lungs `to` Right ventricleC. Right ventricle `to` Lungs `to` Left ventricleD. Right ventricle `to` Lungs `to` Left atrium |
Answer» Correct Answer - D | |
448. |
T-lymphocytes mature inA. Bone marrowB. Lymph nodesC. Bursa of fabriciusD. Thymus |
Answer» Correct Answer - D | |
449. |
Lymphocytes of lower vertebrates are produced inA. LiverB. SpleenC. Bone marrowD. Vertebrae |
Answer» Correct Answer - A Lymphocytes of lower vertebrates are produced in liver. |
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450. |
T-Lymphocytes originate fromA. ThymusB. Bone marrowC. LiverD. None of these |
Answer» Correct Answer - B Haemopoietic stem differentiate into T-and B-lymphocytes in the bone marrow T-cells then migrate to thymus gland for their proliferation. |
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