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