MCQOPTIONS
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MCQOPTIONS
This section includes 491 Mcqs, each offering curated multiple-choice questions to sharpen your Medical Subjects knowledge and support exam preparation. Choose a topic below to get started.
| 401. |
Contractile element in myofibril is_______________? |
| A. | H band |
| B. | Sarcoplasm |
| C. | Sarcomere |
| D. | A line |
| Answer» D. A line | |
| 402. |
Contraceptive action of combined pill is mainly due to_______________? |
| A. | Decrease in tubal motility |
| B. | Prevents the fertilization |
| C. | Prevents the implantation of fertilized egg |
| D. | Inhibits ovulation |
| Answer» E. | |
| 403. |
Consider the following statements________________? |
| A. | Starling’s law of heart states that increase in force of contraction is directly related to cardiac ouput |
| B. | Staling’s law of heart states that the force of ventricular contraction is directly related to the end diastolic volume |
| C. | Both A and B |
| D. | None of the above |
| Answer» D. None of the above | |
| 404. |
Conduction velocity is least in_______________? |
| A. | AV node |
| B. | SA node |
| C. | SA node |
| D. | Purkinje fibers |
| Answer» B. SA node | |
| 405. |
CO2 is transported in plasma as_____________? |
| A. | Bicarbonate |
| B. | Carbomino compounds |
| C. | Dissolved |
| D. | CO |
| Answer» B. Carbomino compounds | |
| 406. |
CO2 is carried in the blood________________? |
| A. | In combination with hemoglobin |
| B. | In physical solution in plasma |
| C. | In combination with plasma proteins |
| D. | All of the above |
| Answer» E. | |
| 407. |
Clotting factor common to extrinsic and intrinsic pathway is_____________? |
| A. | Factor II |
| B. | Factor III |
| C. | Factor V |
| D. | Factor VII |
| Answer» D. Factor VII | |
| 408. |
Closure of aortic valve occurs before the following event_______________? |
| A. | Isovolumetric contraction |
| B. | Isovolumetric relaxation |
| C. | Pre-diastole |
| D. | Pre-systole |
| Answer» C. Pre-diastole | |
| 409. |
Citrate is a useful anticoagulant because of its ability to_____________? |
| A. | Buffer basic groups of coagulation factors |
| B. | Bind factor XII |
| C. | Bind vitamin K |
| D. | Chelate calcium |
| Answer» E. | |
| 410. |
Chromatolysis is______________? |
| A. | Disintegrating of Nucleus |
| B. | Disintegration of golgi apparatus |
| C. | Disappearance of nissel granules |
| D. | Decrease in cell size |
| Answer» D. Decrease in cell size | |
| 411. |
Christmas factor is_____________? |
| A. | PTA |
| B. | PTC |
| C. | VWA |
| D. | Prothrombin |
| Answer» C. VWA | |
| 412. |
Cholagogues are the substances, which cause______________? |
| A. | Contraction of the gallbladder |
| B. | Increase concentration of bile |
| C. | Increase secretion of bile |
| D. | Favours acidification of bile |
| Answer» B. Increase concentration of bile | |
| 413. |
Changes in biological activity occurring daily are referred as _________ rhythm? |
| A. | Circadian |
| B. | Circa triginatan |
| C. | Circa sestin |
| D. | Circannual |
| Answer» B. Circa triginatan | |
| 414. |
Cephalic phase of gastric secretion is mediated by ______________? |
| A. | Neuro hormones |
| B. | Vagus |
| C. | Hormones |
| D. | Gastric |
| Answer» C. Hormones | |
| 415. |
Cephalic phase of gastric secretion can be demonstrated by the following experiment____________? |
| A. | Heidenhan’s pouch |
| B. | Condition reflex |
| C. | Pavlov’s pouch |
| D. | None of the above |
| Answer» D. None of the above | |
| 416. |
Centre of activity of autonomic nervous system is_________________? |
| A. | Midbrain |
| B. | Cerebrum |
| C. | Hypothalamus |
| D. | Pons |
| Answer» D. Pons | |
| 417. |
Cell bodies of the neurons which carry taste sensation from the anterior 2/3rd of the tongue are located in________________? |
| A. | Trigeminal nerve ganglion |
| B. | Geniculate ganglion |
| C. | Otic ganglion |
| D. | Superior cervical ganglion |
| Answer» C. Otic ganglion | |
| 418. |
Carotid body function in an organ work as_______________? |
| A. | Differential pressure of oxygen in arterial blood |
| B. | Differential pressure of oxygen in venous blood |
| C. | Differential pressure of oxygen in in tissue fluids |
| D. | Differential pressure of oxygen in in hemoglobin synthesis |
| Answer» B. Differential pressure of oxygen in venous blood | |
| 419. |
Cardiac output is not affected by __________________? |
| A. | Heart rate |
| B. | Peripheral resistance |
| C. | Systolic blood pressure |
| D. | Venous return |
| Answer» D. Venous return | |
| 420. |
Cardiac output is maximum to _________________? |
| A. | Liver |
| B. | Brain |
| C. | Kidney |
| D. | Heart |
| Answer» B. Brain | |
| 421. |
Cardiac output is a measure of______________? |
| A. | Peripheral resistance X tissue fluid |
| B. | Peripheral resistance X cardiac rate |
| C. | Blood pressure X cardiac rate |
| D. | Heart rate X blood volume |
| Answer» E. | |
| 422. |
Cardiac muscle contracts due to______________? |
| A. | Extracellular Ca+2 |
| B. | Sarcoplasmic ca+2 |
| C. | Extracellular Na+ |
| D. | Intracellular Na+ |
| Answer» B. Sarcoplasmic ca+2 | |
| 423. |
Cardiac output in L/min divided by heart rate equals_______________? |
| A. | Cardiac efficiency |
| B. | Cardiac index |
| C. | Mean stroke volume |
| D. | Mean arterial pressure |
| Answer» D. Mean arterial pressure | |
| 424. |
Cardiac cycle duration in man is_______________? |
| A. | 0.4 seconds |
| B. | 0.8 seconds |
| C. | 1.2 seconds |
| D. | 1.6 seconds |
| Answer» C. 1.2 seconds | |
| 425. |
Cardiac index is related to ______________? |
| A. | cardiac output and body weight |
| B. | Cardiac output and body surface area |
| C. | Cardiac output and work of the heart |
| D. | Stroke volume and pulse rate |
| Answer» C. Cardiac output and work of the heart | |
| 426. |
Carbonic anhydrase in the kidney tubular cells is known to be associated with_____________? |
| A. | Urea |
| B. | Chloride |
| C. | Bicarbonate ion |
| D. | Carbohydrate |
| Answer» D. Carbohydrate | |
| 427. |
Carbon monoxide poisoning causes_______________? |
| A. | Hypoxic hypoxia |
| B. | Oxygen dissociation curve shifts to left |
| C. | Cyanosis |
| D. | Diffusion capacity of lungs decreases |
| Answer» C. Cyanosis | |
| 428. |
Calcium ions triggers muscle contraction by binding to ___________________? |
| A. | Actin |
| B. | Myosin |
| C. | Troponin |
| D. | Tropomyosin |
| Answer» D. Tropomyosin | |
| 429. |
Calcitonin is released by ___________________? |
| A. | Parafollicular cells of thyroid |
| B. | Chief cells of thyroid |
| C. | Granular cells of adrenal gland |
| D. | Stratum fasciculata of adrenal gland |
| Answer» B. Chief cells of thyroid | |
| 430. |
Brush border is seen in________________? |
| A. | Bowman’s capsule |
| B. | Proximal convoluted tubule |
| C. | Distal convoluted tubule |
| D. | Loop of Henle |
| Answer» C. Distal convoluted tubule | |
| 431. |
Bronchial circulation is associated with__________________? |
| A. | Air conditioning |
| B. | Drug absorption |
| C. | Gaseous exchange |
| D. | Reserve volume |
| Answer» D. Reserve volume | |
| 432. |
Broca’s area is concerned with______________? |
| A. | Word formation |
| B. | Comprehends language not speaking |
| C. | Present in posterior part of temporal lobe |
| D. | Is the confluence of somatic , auditory and visceral areas |
| Answer» B. Comprehends language not speaking | |
| 433. |
Breathing ceases upon destruction of the___________________________? |
| A. | Cerebrum |
| B. | Medulla oblongata |
| C. | Hypothalamus |
| D. | Cerebellum |
| Answer» C. Hypothalamus | |
| 434. |
Bone metabolism is controlled by ____________? |
| A. | Vit – D & Calcium |
| B. | Parathormone |
| C. | Calcitonin |
| D. | All of the above |
| Answer» E. | |
| 435. |
Body temperature is maintained by ______________? |
| A. | Postural position |
| B. | Covering of the body |
| C. | Peripheral vasoconstriction |
| D. | all of the above |
| Answer» E. | |
| 436. |
Blood supply to the brain during moderate exercise________________? |
| A. | decreases |
| B. | Remains constant |
| C. | Increases |
| D. | Increases then decreases |
| Answer» C. Increases | |
| 437. |
Blood coagulation is impaired in___________? |
| A. | Tetany |
| B. | Hyperparathyrodism |
| C. | Rickets |
| D. | None |
| Answer» B. Hyperparathyrodism | |
| 438. |
Blood cells arise in bone marrow and are subject to______________? |
| A. | Irregular renewal |
| B. | Regular renewal |
| C. | Infrequent renewal |
| D. | None of the above |
| Answer» C. Infrequent renewal | |
| 439. |
Blood brain barriers is absent in all of the following areas except__________________? |
| A. | Subfornical region |
| B. | Habenuclear trigone |
| C. | Area posterma |
| D. | Neurohypophysis |
| Answer» C. Area posterma | |
| 440. |
Bleeding time is prolonged in a person who_______________? |
| A. | Has liver disease |
| B. | Takes coumarin derivatives |
| C. | Lacks factor VIII |
| D. | Takes large quantities of aspirin |
| Answer» E. | |
| 441. |
Bilirubin is conjugated with which of the following ? |
| A. | Glycine |
| B. | Glutamine |
| C. | Acetyl CoA |
| D. | Glucuronic acid |
| Answer» E. | |
| 442. |
Bile salt repeats its cycle in____________? |
| A. | 4 times a day |
| B. | 2 times in between meals |
| C. | 8 times a day |
| D. | 10 times a day in fasting |
| Answer» D. 10 times a day in fasting | |
| 443. |
Bile color is due to_____________? |
| A. | Creatinine |
| B. | Bilirubin |
| C. | Globulin |
| D. | 5 mercaptan purine |
| Answer» C. Globulin | |
| 444. |
Bile acids are derived from_____________? |
| A. | Bile salts |
| B. | Bile pigments |
| C. | A & B |
| D. | Cholesterol |
| Answer» E. | |
| 445. |
Biconcave shape of RBC helps by___________________? |
| A. | Increasing flexibility |
| B. | Increasing surface area |
| C. | Carrying more Hemoglobin |
| D. | Passing easily through smaller capillaries |
| Answer» E. | |
| 446. |
Best stimuli for secretion is______________? |
| A. | Protein |
| B. | Acid |
| C. | Fat |
| D. | Bile |
| Answer» C. Fat | |
| 447. |
Bacteria are most commonly ENGULFED by _________________? |
| A. | Neutrophilic leukocytes |
| B. | Large granular lymphocytes |
| C. | Small lymphocytes |
| D. | Killer cells |
| Answer» B. Large granular lymphocytes | |
| 448. |
Axon hillock is part of the soma of neuron which________________? |
| A. | Has dense Nissl grandules |
| B. | Has no Nissl granules |
| C. | Is at commencement of dendrites |
| D. | Is round in shape |
| Answer» C. Is at commencement of dendrites | |
| 449. |
At what temperature blood is stored______________? |
| A. | -4°C |
| B. | 4°C |
| C. | 6°C |
| D. | 8°C |
| Answer» C. 6°C | |
| 450. |
At high altitudes the following changes takes place except_______________? |
| A. | Increase in respiratory rate |
| B. | Increases in depth of respiration |
| C. | Increase in oxygen carrying capacity of blood |
| D. | Increase in partial pressure of CO2 |
| Answer» E. | |