physiology Mcqs
151. Cholagogues are the substances, which cause______________?
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A. Increase concentration of bile

B. Favours acidification of bile

C. Contraction of the gallbladder

D. Increase secretion of bile

152. The type of hypoxia present in high attitude is_____________?
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A. Stagnant Hypoxia

B. Hypoxic Hypoxia

C. Anemic Hypoxia

D. Histotoxic Hypoxia

153. Of the following is a reflex mediated by vagus ?
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A. Bile flow from liver

B. Mucous secretion from the Brunners glands

C. Pancreatic secretion of bicarbonate

D. Cephalic phase of gastric secretion
154. following are the features of cretinism, except_____________?
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A. Normal intelligence

B. Stunted growth

C. Idiotic look

D. Pot- belly

156. In thyrotoxicosis , there is______________?
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A. Increase in serum proteins which bind throxine

B. Decrease in calcium excretion

C. Increase in calcium excretion

D. Potentiation of catecholamine action
157. FSH is secreted by_____________?
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A. Acidophiles

B. Basophils

C. Chromophobes

D. Theca intern cells

158. Non- respiratory function of the lung is_________________?
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A. Serotonin metabolism

B. Dopamine metabolism

C. PGE2 production

D. Adrenaline metabolism

160. Ovulation is associated with sudden rise in______________?
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A. Prolactin

B. L.H

C. Testosterone

D. Oxytocin

161. Excess of cortisol causes______________?
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A. Acromegaly

B. Cushing s syndrome

C. Diabetes insipidus

D. Conns syndrome

162. Hormones, which stimulate spermatogenesis, are______________?
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A. A.D.H. and Oxytocin

B. Testosterone and F.S. H

C. Thyroxine and parathormone

D. Insulin and glucagon

163. Glucagon is secreted by ____________?
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A. Beta cells of pancreas

B. Alpha cells of pancreas

C. None of the above

D. Gamma cells of pancreas

164. The duodenum secretes a hormone which has following effects except_______________?
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A. Causes copious pancreatic juice rich in bicarbonate and poor in enzymes

B. Leads to meager flow of pancreatic juice rich in enzymes

C. Causes gall bladder to contract and sphincter of oddi to relax

D. Increases gastric motility
165. Pharyngeal phase of deglutition_____________?
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A. Vocal cords are closed

B. A and B

C. Is a reflex mechanism

D. Is a voluntary mechanism

166. Smoking causes_____________?
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A. Ciliary motility

B. Mucous secretion

C. Cellular hyperplasia

D. All of the above
167. The blood glucose level in diabetes mellitus is decreased by removal of the______________?
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A. Anterior pituitary

B. Parathyroids

C. Thyroid

D. Posterior pituitary

168. Fats absorbed with the help of bile salts are_______________?
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A. Higher fattery acids, diglycerides and monoglycereides

B. Free fatty acid

C. All of the above

D. Glycerol

169. Maximum secretory glands in stomach are________________?
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A. Gastric glands

B. Pyloric glands

C. Fundic glands

D. Brunners glands

170. Aldosterone production is controlled by _____________?
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A. Hypothalamus

B. Posterior pituitary gland

C. Adrenal gland

D. Anterior pituitary gland
172. Enzymes, which play an important role in calcification are______________?
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A. Alkaline phosphatase and catalase

B. Enolase and Calcitonin

C. Alkaline phosphatase and pyrophophatase

D. Pyrophosphatase and carbonic anhydrase

174. Arterial O2 content is reduced in one of following ______________?
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A. Anemic hypoxia

B. Hypoxic or arterial hypoxia

C. Stagnant hypoxia

D. Histotoxic hypoxia

175. Peristalsis in the gut is due to ______________?
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A. Simultaneous action of circular and longitudinal muscles

B. Mecharical distension

C. Extrinsic nervous influence

D. Preperistalitic intestinal secretion

176. Not true about T3 and T4 is______________?
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A. T3 more potent than T4

B. Absorption of T4 is more than T3

C. T4 binds to prealbumin

D. Concentration of T4 is more than T3

177. Urine urobilinogen is absent in_______________?
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A. All of the above

B. Viral hepatitis

C. Hemolytic jaundice

D. Obstructive jaundice
178. Deficiency of cortisol causes_______________?
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A. Graves disease

B. Addison disease

C. Acromegaly

D. Cushing syndrome

180. What is true about pneumothorax ?
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A. The concentration of surfactant is reduced in alveoli

B. Increased lung compliance

C. Total chest wall diameter is increased

D. Interpleural pressure becomes more negative

181. Negative BMR is observed with______________?
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A. Pituitary disturbance

B. Thyroid disturbance

C. Parathyroid

D. All of the above

183. Stomach accommodates the meal by______________?
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A. Deceptive relaxation

B. Receptive relaxation

C. Reactive relaxation

D. None of the above

184. Parietal cells of gastric mucosa secrete ______________ ?
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A. Hcl

B. All of the above

C. Gastrin

D. Mucin

186. Which of the following statements about the action of the somatomedin is true ?
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A. They inhibit protein synthesis

B. They antagonize the effect of insulin

C. They mediated the local effects of Somatostatin

D. They promote growth of bone and cartilage
188. Removal of parathyroid gland produces the following changes EXCEPT_________________?
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A. Decrease in plasma phosphate level

B. Decline plasma calcium level

C. hypo calcemic tetany

D. Neuromuscular hyperexcitability

189. Bilirubin is conjugated with which of the following ?
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A. Glutamine

B. Glycine

C. Glucuronic acid

D. Acetyl CoA

191. Trousseaus sign and chovsteks sings are positive in___________?
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A. Hyperparathyroidism

B. Hyperthyroidism

C. Hypothyroidism

D. Hypoparathyroidism
192. Bone metabolism is controlled by ____________?
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A. Parathormone

B. Calcitonin

C. Vit D & Calcium

D. All of the above
193. Gastro intestinal hormone in the following is_______________?
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A. Ptyalin

B. Pepsin

C. Cholecystokinin

D. Trypsin

195. Trypsin is an activator of all of the following enzymes EXCEPT_______________?
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A. Proelastase

B. Procolipase

C. Pepsinogen

D. Chymotrypsinogen

196. The receptors for parathyroid hormone are present in______________?
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A. Cartilage

B. Osteoblasts

C. Periosteum

D. Osteoclasts
197. Muscle of expiration____________?
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A. Internal intercostals

B. Diaphragm

C. External intercostals

D. Rcti Abdominis

198. In cases of hypercapnia there is_______________?
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A. Increased pH of blood

B. Remains same

C. Decreased pH of blood

D. Increased oxygen concentration in blood

199. Oxygen as an emergency drug is contraindicated in______________?
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A. Asthma

B. Hyperventilation

C. Anaphylaxis

D. COPD

200. The decreased phosphate level seen in hyper parathyroidism is due to ________________?
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A. Decreased intestinal phosphate absorption

B. Increased calcium excretion

C. Decreased renal phosphate absorption

D. Increased loss of phosphate in urine