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.
| 101. |
The Sensory receptors serving the stretch reflex are classified as___________? |
| A. | Proprioceptors |
| B. | Nociceptors |
| C. | Exteroceptors |
| D. | Chemo receptors |
| Answer» B. Nociceptors | |
| 102. |
The renal threshold for glucose is_______________? |
| A. | 180 mg / dl |
| B. | 100 mg/dl |
| C. | 120 mg/dl |
| D. | 80 mg/dl |
| Answer» B. 100 mg/dl | |
| 103. |
The renal clearance of _______________? |
| A. | Creatinine indicates glomerular filtration rate |
| B. | Inulin is lower than that of urea |
| C. | Chloride increases after in injection of aldosterone |
| D. | PAH continues to rise as the plasma concentration of PAH increases |
| Answer» E. | |
| 104. |
The renal blood flow in (in ml/mt) is______________? |
| A. | 250 |
| B. | 250 |
| C. | 1260 |
| D. | 1500 |
| Answer» D. 1500 | |
| 105. |
The receptors for parathyroid hormone are present in______________? |
| A. | Osteoblasts |
| B. | Osteoclasts |
| C. | Periosteum |
| D. | Cartilage |
| Answer» C. Periosteum | |
| 106. |
The reabsorption of sodium chloride is increased in proximal convoluted tubules by hormones secreted from______________? |
| A. | Anterior pituitary |
| B. | Posterior pituitary |
| C. | Adrenal cortex |
| D. | Adrenal medulla |
| Answer» D. Adrenal medulla | |
| 107. |
The quantity of water lost in expired air each 24 hrs is about___________? |
| A. | 200 ML |
| B. | 400 ML |
| C. | 600 ML |
| D. | 800 ML |
| Answer» C. 600 ML | |
| 108. |
The processing of short-term memory to long term memory is done in_______________? |
| A. | Prefrontal cortex |
| B. | Hippocampus |
| C. | Neocortex |
| D. | Amygdala |
| Answer» C. Neocortex | |
| 109. |
The principal site for granulocytic hemopoiesis in the adult human is________________? |
| A. | The liver |
| B. | The spleen |
| C. | Red bone marrow |
| D. | Yellow bone marrow |
| Answer» D. Yellow bone marrow | |
| 110. |
The primary site of action of antidiuretic hormone is on the_______________? |
| A. | Distal tubules and collecting ducts in the kidney |
| B. | Afferent arterioles of the glomeruli |
| C. | Thirst center in the hypothalamus |
| D. | Osmoreceptors in the hypothalamus |
| Answer» B. Afferent arterioles of the glomeruli | |
| 111. |
The primary effect of calcitonin is__________________? |
| A. | Bone deposition |
| B. | Bone resorption |
| C. | Increases intestinal absorption of calcium |
| D. | Decreases intestinal absorption of calcium |
| Answer» B. Bone resorption | |
| 112. |
The percentage of body water is greater in_______________? |
| A. | Male than in females |
| B. | Children than in adult |
| C. | Obese than in lean individuals |
| D. | old than in young objects |
| Answer» B. Children than in adult | |
| 113. |
The pathway of pain from teeth and temperature is carried by ______________? |
| A. | Corticospinal tract |
| B. | Corticocerebral tract |
| C. | Lateral spinothalamic tract |
| D. | Ventral spinothalamic tract |
| Answer» D. Ventral spinothalamic tract | |
| 114. |
The part of nephron” least permeable to water” is______________? |
| A. | Proximal tubule |
| B. | Descending limb of loop of Henle |
| C. | Ascending limb of loop of Henle |
| D. | Collecting tubule |
| Answer» D. Collecting tubule | |
| 115. |
The oxygen tension of the mixed venous blood is______________? |
| A. | 25 mm Hg |
| B. | 40 mm Hg |
| C. | 55 mm Hg |
| D. | 70 mm Hg |
| Answer» C. 55 mm Hg | |
| 116. |
The oral and pharyngeal phases of swallowing take place very rapidly and last about______________? |
| A. | 3.5 seconds |
| B. | 1-1.5 seconds |
| C. | 6.0 seconds |
| D. | 9.5 seconds |
| Answer» C. 6.0 seconds | |
| 117. |
The only sugar normally absorbed in the intestine against a concentration gradient is_____________? |
| A. | Xylose |
| B. | Mannose |
| C. | Glucose |
| D. | Galactose |
| Answer» D. Galactose | |
| 118. |
The only fixed cell of the connective tissue_______________? |
| A. | Histiocyte |
| B. | Lymphocyte |
| C. | Neutrophils |
| D. | Mast cell |
| Answer» B. Lymphocyte | |
| 119. |
The number of muscle fibers in a motor unit are least in______________? |
| A. | Laryngeal muscles |
| B. | Pharyngeal muscles |
| C. | Muscles of middle ear |
| D. | Extraocular muscles |
| Answer» B. Pharyngeal muscles | |
| 120. |
The normal brown red color of feces results from the presence of_______________? |
| A. | Heme |
| B. | Stercobilin |
| C. | Biliverdin |
| D. | Bilirubin diglucuronide |
| Answer» C. Biliverdin | |
| 121. |
The normal absolute eosinophil count is_____________? |
| A. | 40 to 440 cells/C.mm |
| B. | 500 to 900 cells/C.mm |
| C. | 1200 to1500cells/C.mm |
| D. | 1500 to 2,000cells/C.mm |
| Answer» B. 500 to 900 cells/C.mm | |
| 122. |
The normal adult value of urine output________________? |
| A. | 1.5 l/day |
| B. | 3 l/day |
| C. | 0.5 l/day |
| D. | 2 l/day |
| Answer» B. 3 l/day | |
| 123. |
The normal A/G ratio in blood is______________? |
| A. | 5:1 |
| B. | 2:1 |
| C. | 1:2 |
| D. | 1:1 |
| Answer» C. 1:2 | |
| 124. |
The neuromuscular transmitter released at neuromuscular junction is_______________? |
| A. | Dopamine |
| B. | Epinephrine |
| C. | Nor epinephrine |
| D. | Acetylcholine |
| Answer» E. | |
| 125. |
The most significant immediate result of lowered serum calcium is_______________? |
| A. | Weakened heart action |
| B. | Decalcification of bones |
| C. | Decalcification of teeth |
| D. | Hyperirritability of nerves and muscles |
| Answer» C. Decalcification of teeth | |
| 126. |
The most outer covering of nerve fibres is called as____________? |
| A. | Neurolemma |
| B. | Perineurium |
| C. | Axolemma |
| D. | Myelin sheath |
| Answer» C. Axolemma | |
| 127. |
The most important function of hydrochloric acid in the stomach is_______________? |
| A. | Destruction of bacteria |
| B. | Neutralization of chyme |
| C. | Activation of pepsinogen |
| D. | Stimulation of pancreatic secretion |
| Answer» D. Stimulation of pancreatic secretion | |
| 128. |
The most important action of Secretin is to_____________? |
| A. | neutralize the acid from the stomach |
| B. | increase secretion of bicarbonates by pancreas |
| C. | decrease gastric secretion |
| D. | Cause contraction of pyloric sphincter |
| Answer» E. | |
| 129. |
The most common problem with blood trans fusion_______________? |
| A. | Hemolytic reaction |
| B. | Remission of disease |
| C. | Hypokalemia |
| D. | Metabolic acidosis |
| Answer» B. Remission of disease | |
| 130. |
The most common form of hypoxia is______________? |
| A. | Hypoxic |
| B. | Stagnant |
| C. | Anemic |
| D. | Histotoxic |
| Answer» B. Stagnant | |
| 131. |
The male sex hormone testosterone is produced by______________? |
| A. | Sertoli cells |
| B. | Epithelial cells |
| C. | Interstitial cells of Leydig |
| D. | Primitive term cells |
| Answer» D. Primitive term cells | |
| 132. |
The major sign of hypoventilations_____________? |
| A. | Cyanosis |
| B. | Dyspnea |
| C. | Hypercapnia |
| D. | Hypoxia |
| Answer» D. Hypoxia | |
| 133. |
The major functional difference between DNA and RNA is_____________? |
| A. | RNA contains ribose |
| B. | DNA carries the information in all organizations |
| C. | DNA is localized in nucleus |
| D. | RNA does not contain thymine |
| Answer» C. DNA is localized in nucleus | |
| 134. |
The main types of muscle cells are______________? |
| A. | Skeletal and cardiac |
| B. | Smooth and cardiac |
| C. | Smooth and skeletal |
| D. | All of the above |
| Answer» E. | |
| 135. |
The largest function of the total peripheral resistance is due to _________________? |
| A. | Venules |
| B. | Arterioles |
| C. | Capillaries |
| D. | Precapillary sphincters |
| Answer» C. Capillaries | |
| 136. |
The largest fraction of the total body fluid is_______________? |
| A. | Extracellular fluid |
| B. | Intracellular fluid |
| C. | Plasma |
| D. | Whole blood |
| Answer» C. Plasma | |
| 137. |
The kidney secrete all of the following hormones except_____________? |
| A. | Renin |
| B. | Erythropoietin |
| C. | Vasopressin |
| D. | 1,2,5 Dihydroxy cholecalciferol |
| Answer» D. 1,2,5 Dihydroxy cholecalciferol | |
| 138. |
The intrapleural pressure at the end of deep inspiration is ______________? |
| A. | -4 mm Hg |
| B. | +4 mm Hg |
| C. | -18 mm Hg |
| D. | + mm Hg |
| Answer» B. +4 mm Hg | |
| 139. |
The intrinsic factor for vitamins B12 absorption is produced in the______________? |
| A. | Liver |
| B. | Stomach |
| C. | Pancreas |
| D. | Duodenum |
| Answer» C. Pancreas | |
| 140. |
The hyperosmolarity of the renal medulla is due to increased content of_____________? |
| A. | K+ |
| B. | Na+ |
| C. | Glucose |
| D. | NH4+ |
| Answer» C. Glucose | |
| 141. |
The hormone , which stimulates uterus contraction and lets down milk, is_____________? |
| A. | Progesterone |
| B. | Prolactin |
| C. | Prostaglandin |
| D. | Oxytocin |
| Answer» E. | |
| 142. |
The hormone whose deficiency causes diabetes insipidus is released from which nucleus of pituitary ________________? |
| A. | Supraoptic |
| B. | Pre optic |
| C. | Suprachiasmatic |
| D. | Paraventricular |
| Answer» B. Pre optic | |
| 143. |
The hormone having the maximum effect on granulation wound healing is____________? |
| A. | Thyroxine |
| B. | Cortisone |
| C. | Parathormone |
| D. | Epinephrine |
| Answer» C. Parathormone | |
| 144. |
The hemoglobin % of a normal newborn is______________? |
| A. | 8 |
| B. | 12 |
| C. | 10 |
| D. | 30 |
| Answer» E. | |
| 145. |
The half-life of plasma Albumin is approximately___________________? |
| A. | 7 days |
| B. | 20 days |
| C. | 60 days |
| D. | 90 days |
| Answer» C. 60 days | |
| 146. |
The glomerular filtration rate of the human kidney may be determined by measuring the plasma clearance of______________? |
| A. | PAH |
| B. | Urea |
| C. | Inulin |
| D. | Glucose |
| Answer» D. Glucose | |
| 147. |
The function of vitamin K is______________? |
| A. | Thrombin formation |
| B. | Prothrombin formation |
| C. | Fibrin formation |
| D. | Thromboplastin formation |
| Answer» C. Fibrin formation | |
| 148. |
The function of plasma cell______________? |
| A. | CMI |
| B. | Phagocytosis |
| C. | Opsonization |
| D. | Antibody formation |
| Answer» E. | |
| 149. |
The function of Carotid body is_______________? |
| A. | Measures the change in Po2 in arterial blood |
| B. | Measures Po2 in venous blood |
| C. | Measures the changed in CO2 in arterial blood |
| D. | Measures the change in CO2 in venous blood |
| Answer» B. Measures Po2 in venous blood | |
| 150. |
The function common to neutrophils, monocytes & macrophages is______________? |
| A. | Immune response |
| B. | Phagocytosis |
| C. | Liberation of histamine |
| D. | Destruction of old erythrocytes |
| Answer» C. Liberation of histamine | |