MCQOPTIONS
Saved Bookmarks
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.
| 151. |
The following hormones increase the blood glucose level except_____________? |
| A. | Thyroxine |
| B. | Parathormone |
| C. | Growth Hormone |
| D. | Epinephrine |
| Answer» C. Growth Hormone | |
| 152. |
The following factors increase the cardiac output except______________? |
| A. | Preload |
| B. | After load |
| C. | Heart rate |
| D. | Myocardial contractility |
| Answer» C. Heart rate | |
| 153. |
The following electrodes are used to detect the muscle activity without pain_________________? |
| A. | Surface electrode |
| B. | Round electrode |
| C. | Hook electrode |
| D. | Needle electrode |
| Answer» B. Round electrode | |
| 154. |
The first physiological response to high environmental temperature is_______________? |
| A. | Sweating |
| B. | Vasodilatation |
| C. | Decrease heat production |
| D. | Non- shivering thermogenesis |
| Answer» C. Decrease heat production | |
| 155. |
The first heart sound is produced by the_____________? |
| A. | Closure of the aortic and pulmonary valves |
| B. | Opening of the aortic and pulmonary valves |
| C. | Closure of the mitral and tricuspid valves |
| D. | Opening of the mitral and tricuspid valves |
| Answer» D. Opening of the mitral and tricuspid valves | |
| 156. |
The final sugars in intestinal chyme are____________? |
| A. | Glucose & fructose |
| B. | Ribose & mannose |
| C. | Ribose & xylulos |
| D. | Xylulose & fructose |
| Answer» B. Ribose & mannose | |
| 157. |
The eosinophil count in the peripheral blood smear is increased in________________? |
| A. | Allergic conditions |
| B. | Anemia |
| C. | Polycythemia |
| D. | Typhoid fever |
| Answer» B. Anemia | |
| 158. |
The end plate potential is characterized by_____________? |
| A. | Propagation |
| B. | All or none law |
| C. | Depolarization |
| D. | Hyper polarization |
| Answer» D. Hyper polarization | |
| 159. |
The effects of Adrenaline on heart are all except__________________? |
| A. | Increases heart rate |
| B. | Decreases myocardial irritability |
| C. | Increases force of contraction |
| D. | Increases oxygen uptake by heart |
| Answer» C. Increases force of contraction | |
| 160. |
The effect which is seen due to decrease in serum calcium concentration is_______________? |
| A. | Relaxation of muscle |
| B. | Excitability of the muscle |
| C. | Increase the renal absorption |
| D. | Depression of Nervous system |
| Answer» C. Increase the renal absorption | |
| 161. |
The duodenum secretes a hormone which has following effects except_______________? |
| A. | Causes copious pancreatic juice rich in bicarbonate and poor in enzymes |
| B. | Increases gastric motility |
| C. | Causes gall bladder to contract and sphincter of oddi to relax |
| D. | Leads to meager flow of pancreatic juice rich in enzymes |
| Answer» C. Causes gall bladder to contract and sphincter of oddi to relax | |
| 162. |
The dicrotic notch on the aortic pressure curve is caused by_________________? |
| A. | Closure of the pulmonary valve |
| B. | Rapid filling of the left ventricle |
| C. | Closure of the aortic valve |
| D. | Contraction of the atria |
| Answer» D. Contraction of the atria | |
| 163. |
The decreased phosphate level seen in hyper parathyroidism is due to ________________? |
| A. | Decreased intestinal phosphate absorption |
| B. | Increased calcium excretion |
| C. | Decreased renal phosphate absorption |
| D. | Increased loss of phosphate in urine |
| Answer» D. Increased loss of phosphate in urine | |
| 164. |
The conversion of prothrombin to thrombin, the factor participate along with calcium is______________? |
| A. | Labile factor |
| B. | Stable factor |
| C. | Fibrin |
| D. | Thromboplastin |
| Answer» B. Stable factor | |
| 165. |
The contractile element in a skeletal muscle is present in______________? |
| A. | Sarcolemma |
| B. | Sarcoplasm |
| C. | Myofibril |
| D. | Endomysium |
| Answer» D. Endomysium | |
| 166. |
The cell junctions allowing exchange of cytoplasmic molecules between two cells are called________________? |
| A. | Gap junctions |
| B. | Tight junctions |
| C. | Anchoring junctions |
| D. | Focal junctions |
| Answer» B. Tight junctions | |
| 167. |
The catecholamines secreted by adrenal medulla______________? |
| A. | Increases the blood glucose level by favoring glycogenolysis in blood and muscle cells |
| B. | Decrease the level o free fatty acids and ketone bodies |
| C. | Increase the splanchnic blood flow |
| D. | Are under the control of parasy |
| Answer» B. Decrease the level o free fatty acids and ketone bodies | |
| 168. |
The blood glucose level in diabetes mellitus is decreased by removal of the______________? |
| A. | Thyroid |
| B. | Parathyroids |
| C. | Anterior pituitary |
| D. | Posterior pituitary |
| Answer» D. Posterior pituitary | |
| 169. |
The biological anticoagulant is________________? |
| A. | EDTA |
| B. | Sodium citrate |
| C. | Hirundine |
| D. | Double oxalate mixture |
| Answer» D. Double oxalate mixture | |
| 170. |
The best stimulator of respiratory center is____________? |
| A. | Decrease in arterial carbon dioxide level |
| B. | Increase in arterial carbon dioxide level |
| C. | Increase in arterial oxygen level |
| D. | None of the above |
| Answer» C. Increase in arterial oxygen level | |
| 171. |
The best screening test for hemophilia is_____________? |
| A. | BT |
| B. | PT |
| C. | PTT |
| D. | CRT |
| Answer» D. CRT | |
| 172. |
The approximate amount of air left in the lungs after maximal forced expiration in a normal woman______________? |
| A. | 0.5 L |
| B. | 2.0 L |
| C. | 1.1 L |
| D. | 1.8 L |
| Answer» D. 1.8 L | |
| 173. |
The anticoagulant of choice used in the blood bank is_______________? |
| A. | Calcium oxalate |
| B. | Heparin solution |
| C. | Acid citrate dextrose solution |
| D. | Sodium fluoride |
| Answer» D. Sodium fluoride | |
| 174. |
The alveolar ventilation in an individual with tidal volume: 600 ml, dead space 150 ml and respiratory rate of 15/ minute is_____________? |
| A. | 2.5 lit/Min |
| B. | 4.0 lit /Min |
| C. | 6.75 Lit/Min |
| D. | 9 Lit/Min |
| Answer» D. 9 Lit/Min | |
| 175. |
the acrosome reaction occurs, when the sperm_____________? |
| A. | Enters the uterine cavity |
| B. | Comes in contact with zone pellucida |
| C. | Penetrates corona radiate |
| D. | Penetrates cell membrane of oocyte |
| Answer» C. Penetrates corona radiate | |
| 176. |
The absolute refractory period of an action potential is due to _______________? |
| A. | Insufficient neurotransmitter |
| B. | Depletion of intracellular Na+ |
| C. | Inactivation of Na+ k+ ATPase |
| D. | Voltage inactivation of the Na+ channel |
| Answer» E. | |
| 177. |
Secretin is secreted by_____________? |
| A. | Duodenum |
| B. | Duodenum |
| C. | Liver |
| D. | Stomach |
| Answer» B. Duodenum | |
| 178. |
Secretin does not cause _______________? |
| A. | Bicarbonate secretion |
| B. | Augments the action of CCK |
| C. | Contraction of pyloric sphincter |
| D. | Gastric secretion increase |
| Answer» E. | |
| 179. |
Secondary granules of neutrophils contain______________? |
| A. | Lactoferrin |
| B. | Catalase |
| C. | Myeloperoxidase |
| D. | Nucleosidase |
| Answer» B. Catalase | |
| 180. |
Satiety center in hypothalamus is regulated by ________________? |
| A. | Gastric dilatation |
| B. | Blood glucose levels |
| C. | Blood insulin levels |
| D. | All of the above |
| Answer» C. Blood insulin levels | |
| 181. |
SA node acts as a pacemaker of the heart because of the fact that it_________________? |
| A. | is capable of generating impulses |
| B. | Has rich sympathetic innervation |
| C. | Has poor cholinergic innervation |
| D. | Generates impulses at the highest rate |
| Answer» E. | |
| 182. |
Rigor mortis results after death is due to________________? |
| A. | Failure of acetylcholine to diffuse |
| B. | Failure of ATP supply |
| C. | Failure of break down of calcium bridges |
| D. | None of the above |
| Answer» C. Failure of break down of calcium bridges | |
| 183. |
Reverse T3 is__________________? |
| A. | Synthetic derivative |
| B. | Isomerisation product of T3 and active |
| C. | Isomerisation product of T3 and inactive |
| D. | Reverse of T3 |
| Answer» D. Reverse of T3 | |
| 184. |
Resting membrane potential of nerve fiber is_______________? |
| A. | -70 mv |
| B. | -90 mv |
| C. | -55 mv |
| D. | + 35 mv |
| Answer» B. -90 mv | |
| 185. |
Respiratory center is situated in_______________? |
| A. | Medulla oblongata |
| B. | Spinal cord |
| C. | Midbrain |
| D. | Hypothalamus |
| Answer» B. Spinal cord | |
| 186. |
Renin secretion is stimulated by all except_____________? |
| A. | Cardiac failure |
| B. | Low Na+ in proximal tubule |
| C. | Sympathetic stimulation |
| D. | High Na+ in proximal tubule |
| Answer» E. | |
| 187. |
Renin is released from the kidney in all except________________? |
| A. | Sympathetic stimulation |
| B. | Decrease in the concentration of sodium ions in the proximal tubules |
| C. | Decrease in the concentration of sodium ions in the distal tubules |
| D. | Fall in the BP |
| Answer» C. Decrease in the concentration of sodium ions in the distal tubules | |
| 188. |
Removal of parathyroid gland produces the following changes EXCEPT_________________? |
| A. | Decline plasma calcium level |
| B. | Decrease in plasma phosphate level |
| C. | Neuromuscular hyperexcitability |
| D. | hypo calcemic tetany |
| Answer» C. Neuromuscular hyperexcitability | |
| 189. |
Regulated bone growth through puberty occurs through__________________? |
| A. | Endophyseal plates |
| B. | Ectophyeseal plates |
| C. | Epiphyseal plates |
| D. | Chondrophyseal plates |
| Answer» C. Epiphyseal plates | |
| 190. |
Regarding myxedema the following are true except______________? |
| A. | Swollen, oedematous look of the face |
| B. | Impotency, amenorrhea |
| C. | B.M.R increased by 30 -45% |
| D. | Dullness, loss of memory |
| Answer» D. Dullness, loss of memory | |
| 191. |
Regarding Golgi tendon organ true is ______________? |
| A. | Senses dynamic length of muscle |
| B. | Involved in reciprocal innervation |
| C. | a- motor neuron stimulation |
| D. | Sense muscle tension |
| Answer» E. | |
| 192. |
Red colour blindness is called________________? |
| A. | Deuteranopia |
| B. | Protanopia |
| C. | Protanomaly |
| D. | Deuteranomaly |
| Answer» C. Protanomaly | |
| 193. |
Receptors for olfactory sensation are present in ______________? |
| A. | Lateral walls |
| B. | Nasal septum |
| C. | Lateral wall and nasal septum above superior concha |
| D. | None of the above |
| Answer» D. None of the above | |
| 194. |
Proximal renal tubule is most permeable to _______________? |
| A. | Sodium |
| B. | Potassium |
| C. | Bicarbonate |
| D. | Ammonia |
| Answer» B. Potassium | |
| 195. |
Prothrombin time is useful for_______________? |
| A. | Detection of clot retraction |
| B. | Platelet count |
| C. | In hemophilia |
| D. | For evaluation in a patient taking anticoagulant drugs |
| Answer» E. | |
| 196. |
Progesterone production in the ovary is primarily by______________? |
| A. | Stroma |
| B. | Corpora albicans |
| C. | Corpora lutea |
| D. | Mature follicles |
| Answer» D. Mature follicles | |
| 197. |
Production of bile takes place in____________________? |
| A. | The gall bladder |
| B. | Kupffer cells |
| C. | Hepatic duct |
| D. | Hepatocytes |
| Answer» E. | |
| 198. |
primary cause of bleeding disorder in liver damage is due to______________? |
| A. | Decreased level of prothrombin |
| B. | Lack of vitamin K |
| C. | Platelet deficiency |
| D. | Lack of vitamin B |
| Answer» B. Lack of vitamin K | |
| 199. |
Preganglionic parasympathetic fibers are_______________? |
| A. | Somatic only |
| B. | Parasympathetic |
| C. | Sympathetic |
| D. | Cholinergic |
| Answer» E. | |
| 200. |
Potassium is maximum in_____________? |
| A. | Cell |
| B. | Plasma |
| C. | Interstitium |
| D. | Bone |
| Answer» B. Plasma | |