0% 0 Physiology Quiz 2 1 / 50 Which of the following anterior pituitary hormones is primarily under inhibitory control of hypothalamus ? Somatostatin GRH Prolactin TSH 2 / 50 Reverse T3 is__________________? Reverse of T3 Isomerisation product of T3 and inactive Synthetic derivative Isomerisation product of T3 and active 3 / 50 Serum is______________? Plasma- fibrin Blood ? all cellular elements Blood ? RBC Plasma- clotting factors 4 / 50 The normal A/G ratio in blood is______________? 5:01 2:01 1:02 1:01 5 / 50 Stimulating mechanoreceptors or nociceptors in mouth triggers the_______________? Jaw gnashing reflex Jaw opening reflex Jaw clenching reflex None of the above 6 / 50 At what temperature blood is stored______________? 8?C 6?C -4?C 4?C 7 / 50 Which hormone is released when serum calcium decreases ? Thyroxine Parathormone Calcitonin Adrenaline 8 / 50 Thromboxane is produced mainly by _______________? Platelets Vascular endothelium Damaged tissue Liver 9 / 50 Which of the following is not involved in blood clotting ? Fe+2 Prothrombin Fibrinogen Calcium 10 / 50 SA node acts as a pacemaker of the heart because of the fact that it_________________? Has poor cholinergic innervation is capable of generating impulses Generates impulses at the highest rate Has rich sympathetic innervation 11 / 50 The primary site of action of antidiuretic hormone is on the_______________? Osmoreceptors in the hypothalamus Distal tubules and collecting ducts in the kidney Afferent arterioles of the glomeruli Thirst center in the hypothalamus 12 / 50 In a DNA molecule adenine always forms a linkage with______________? Thymine Uracil Cytosine Guanine 13 / 50 Wallenberg degeneration is seen in______________? All are true Proximal cut end of nerve with cell body Distal cut end of nerve without cell body Both the free ends of the cut nerve 14 / 50 The only sugar normally absorbed in the intestine against a concentration gradient is_____________? Mannose Galactose Xylose Glucose 15 / 50 Iron is stored in_______________? All Plasma RBC Reticule endothelial system 16 / 50 A decrease in the arterial PO2 is seen in______________? High altitudes Sluggish blood flow Decrease in hemoglobin concentration of arterial blood Paralysis of inspiratory muscles 17 / 50 Skeletal muscles_____________? Contraction is initiated by calcium binding to troponin Contraction is initiated by calcium binding to tropomyosin Contracts when calcium is taken up by sarcoplasmic reticulum Contracts when actin and myosin filaments shorten 18 / 50 Plasma factor present in both serum & plasma is____________? V II Fibrinogen VII 19 / 50 Most effective method of assessing breathing is by measuring____________? FEV 1 Tidal volume Alveolar ventilation Respiratory rate 20 / 50 Within which parts of a gastric gland are chief cells located_____________? Neck Isthmus Fundus Gastric pit 21 / 50 Thrombopoietin is produced by_________________? Megakaryoblast Monocytes Megakaryocyte Liver 22 / 50 All are seen in Cushing ?s syndrome except_______________? Hypoglycemia Truncal obesity Poor wound healing Hypertension 23 / 50 Effect on force of contraction of heart is_____________? Dromotropic effect Ionotropic effect Chronotropic effect Bathmotropic 24 / 50 Peripheral resistance is maximum in_______________? Arteriole Vein Aorta Artery 25 / 50 The tissue macrophages are derived from the________________? Eosinophil Neutrophil Monocyte All of the above 26 / 50 Calcitonin is released by ___________________? Chief cells of thyroid Granular cells of adrenal gland Parafollicular cells of thyroid Stratum fasciculata of adrenal gland 27 / 50 Survival time of platelet is approximately______________? 10 days 100 days 10 weeks 10 hours 28 / 50 Stomach accommodates the meal by______________? Reactive relaxation Deceptive relaxation Receptive relaxation None of the above 29 / 50 All of the following are adverse effects of long- term corticosteroids EXCEPT____________? Psychosis Hypoglycemia Peptic ulcers Osteoporosis 30 / 50 Functional unit of kidney is______________? Glomerulus Loop of Henle Collecting ducts Nephron 31 / 50 In a blood sample antiserum A and antiserum B and Rh+ ve factor is added. No agglutination is seen. This is_______________? AB group and Rh+ ve O group and Rh+ ve O group and Rh- ve AB group and Rh ? ve 32 / 50 The first heart sound is produced by the_____________? Closure of the mitral and tricuspid valves Opening of the mitral and tricuspid valves Closure of the aortic and pulmonary valves Opening of the aortic and pulmonary valves 33 / 50 Prothrombin time is useful for_______________? For evaluation in a patient taking anticoagulant drugs Platelet count In hemophilia Detection of clot retraction 34 / 50 Pharyngeal phase of deglutition_____________? Is a reflex mechanism A and B Is a voluntary mechanism Vocal cords are closed 35 / 50 Osteoclasts are inhibited / modified and regulated by____________? Calcitonin Parathyroid hormone 1,25 dihydroxycholecalciferols Tumor necrosis factor 36 / 50 Which of the following increases turbulence in blood flow ? Decrease in density of blood Decrease in velocity of blood Increase in diameter of blood vessel Reynolds number < 2000 37 / 50 Cardiac index is related to ______________? cardiac output and body weight Cardiac output and work of the heart Cardiac output and body surface area Stroke volume and pulse rate 38 / 50 Regarding Golgi tendon organ true is ______________? Senses dynamic length of muscle a- motor neuron stimulation Involved in reciprocal innervation Sense muscle tension 39 / 50 Which one of the following is a regulatory protein of the muscle ? Myosin Actin Protein- C Troponin 40 / 50 Cephalic phase of gastric secretion is mediated by ______________? Gastric Neuro hormones Hormones Vagus 41 / 50 The anticoagulant of choice used in the blood bank is_______________? Heparin solution Acid citrate dextrose solution Calcium oxalate Sodium fluoride 42 / 50 Oxytocin causes all accept_______________? Myoepithelial cell contraction Milk ejection Contraction of uterine muscle Lactogenesis 43 / 50 Hormone released during increased stress is_____________? Somatostatin Growth hormone Cortisol Thyroxine 44 / 50 In conn?s disease, there is an excess of______________? Noradrenaline Adrenaline Aldosterone Cortisol 45 / 50 Trousseau?s sign and chovstek?s sings are positive in___________? Hyperparathyroidism Hypoparathyroidism Hyperthyroidism Hypothyroidism 46 / 50 A reliable screening test for platelet function is_______________? Thrombin Clot retraction time CT PT 47 / 50 The percentage of body water is greater in_______________? Male than in females Obese than in lean individuals Children than in adult old than in young objects 48 / 50 Epicrritic perception of pain occurs at the level of______________? Pulvinar Areas 5,7 Area 3,1,2 Thalamus 49 / 50 Which of the following hormones increase the sensitivity of heart to epinephrine________________? Glucagon Insulin Parathyroid Thyroid 50 / 50 Most of the sodium is reabsorbed in_____________? PCT DCT Vasa recta Loop of henle Provide Your Information Your score is The average score is 0% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp PrevPhysiology Quiz 1 Physiology Quiz 3Next
