CMDA 026 Tests /30 0 This quiz contains 30 Questions. Go with God's grace! CMDA 026 PHYSIO 2nd Test 1. Identify the false statement A) About 90% of filtered potassium is reabsorbed at the PCT B) The in and out movement of Na is balance by the simple diffusion of Cl C) Over 85% of filtrate are reabsorbed in the PCT D) Reabsorption of Na in the layers part of the distal tubule is influenced by aldosterone 2. Concerning the absorption of solutes, A) The thin LOH does not reabsorb sodium B) The transport maximum is defined as the limit to the rate at which carrier mediated substance is transported C) The renal threshold of a substance is the plasma concentration at which it first appears in urine D) AOTA 3. Concerning urine and urine production, A) Glomerular filtration is the initial stage in urine formation B) Volume and composition of urine is static C) 300ml of urine is the obligatory minimum amount required to remove waste from the body D) Tubular secretion is the addition of substance to the filtrate 4. Which of these factors does not affect renal blood flow A) Nature of the glomerular membrane B) Constriction of renal artery C) Filtration pressure D) Size of the capillary bed 5. About GFR, A) It is the volume of fluid that is filtered across the capillary membrane per minute B) Inulin clearance is used to measure the GFR C) Its normal value is about 125ml/min D) If a substance is filtered but not present in urine, then the clearance is 100 6. Identify the correct statement A) Cortical nephrons comprise about 85% of the nephrons in the kidney B) The Cortical nephrons are important in the countercurrent system for urine concentration C) The Bowman’s capsule and proximal convoluted tubule form the Malphigian corpuscle D) The glomerular membrane carries a net positive charge due to the presence of collagen and proteoglycans 7. Concerning the anatomy of the kidney, A) The outer region is called the cortex B) The medulla is composed of 8-15 mounds of tissue called renal calyces C) The renal pelvis is a continuation of the upper end of the ureter D) The ureter carries urine from the kidney to the urinary bladder 8. About edema, A) It is an abnormal expansion of ISF volume B) Increase in venous pressure causes an increase in hydrostatic pressure which leads to edema C) It is seen in the terminal stages of kwashiorkor D) Liver disease causes loss of protein in urine 9. Concerning dehydration A) It is described as a significant decrease in body water B) Iso-osmotic dehydration is caused by a loss of isotonic fluid C) Hypo-osmotic dehydration is caused by decreased water intake D) In Hyper-osmotic dehydration, protein dehydration increases because of loss of ECF volume 10. Identify the false statement A) All fluid compartments are in Osmotic equilibrium B) Tonicity is used to describe the osmolality of a solution relative to plasma C) Osmolality of plasma is 500 mOsm/l D) NOTA 11. Concerning the phases of secretion, A) Cephalic phase occurs after food enters the stomach due to neurological signals. B) The cephalic phase is a conditioned reflex C) The gastric phase accounts for two thirds of the secretion D) Gastrin is secreted during the gastric phase 12. Select the correct statement A) A BMI greater than 25kg/m² is defined as obesity B) Thermostatic theory proposes that the level of ghrelin controls food satiety C) CCK is secreted by the stomach in response to food ingestion D) In bulimia, there are episodes of uncontrolled eating followed by episodes of vomiting. 13. In Achalasia, A) Food accumulates in the lower oesophagus B) It is caused by a damage to the Auerbach plexus C) Infection of the food in the oesophagus can cause erosion of the mucosa D) AOTA 14. As regards GI disorders, A) In Achalasia, there is failure of the LES to relax on swallowing B) Zollinger-Ellison syndrome can lead to gastric ulcer C) In pernicious anaemia, there is a deficiency of Vitamin B9 D) Chronic gastritis can progress to Gastric atrophy 15. Identify the false statement A) In Hartnup disease, there is malabsorption of basic amino acids. B) After ingestion of a high protein diet, there is an increase in free amino acid pool in the portal blood C) Protein that appear in stool are not of dietary origin D) Thyroxine increases glucose absorption 16. Concerning digestion and absorption of protein A) Proteins are digested by enzymes into amino acids and polypeptides B) Digestion of protein doesn’t occur in the mouth C) Digestion of proteins is completed in the small intestine D) AOTA 17. About digestion and absorption, A) Digestion of carbohydrates starts from the small intestine B) Pancreatic amylase is the major enzyme involved in the digestion of carbohydrates. C) Sucrose is acted on by sucrase to give glucose and galactose D) Carbohydrate digestion is completed in the large intestine 18. Concerning the heart sounds A) The first heart sound is associated with closure of the AV valves B) The second heart sound is associated with closure of the semilunar valves C) The 3rd heart sound is only heard in pathological conditions D) The fourth heart sound is associated with atrial contraction 19. Concerning heart rate and its regulation, A) Sympathetic nervous system cause vasoconstriction and a consequent increase in heart rate B) Parasympathetic input to the heart is via the vagus nerve C) Binding of acetylcholine to the M2 receptors on the heart causes a positive chonotropic response and a negative inotropic response D) Parasympathetic impulse to the heart predominates at rest 20. Identify the correct statement A) Cardiac output is directly related to the afterload B) Cardiac output is directly relayed to heart rate independent of other factors C) Arterioles are also called resistance vessels D) Maximum peripheral resistance is offered at the periphery 21. All these cause an increase in cardiac output except A) Hypothyroidism B) Hyperthyroidism C) Fever D) Pregnancy 22. Concerning cardiac output, A) It is defined as the amount of blood pumped into the aorta each minute B) The normal value is 70ml C) It is represented mathematically by the equation CO= HR× SV D) AOTA 23. Changes that occur after birth include A) The lungs start functioning after the umbilical cord is cut B) The cutting of the placenta causes hyperoxia and hypercapnia C) A fall in right atrial pressure causes closure of the foramen ovale D) Failure of closure of the ductus arteriosus is called patent ductus arteriosus 24. In fetal heart structure, A) The umbilical vein carries oxygenated blood from the placenta to the foetus B) The ductus venosus allows blood from the placenta to bypass the liver C) The foramen ovale creates a shunt between the right atrium and the left atrium D) The umbilical arteries carry oxygenated blood from the placenta to the foetus 25. Select the false statement A) Necrosis is irreversible B) Cardiac pain is referred to the right arm C) Cardiac pain is the pain caused by myocardial ischaemia D) During myocardial ischaemia, there is accumulation of anaerobic metabolites 26. Concerning blood flow, A) Increase in blood viscosity decreases blood flow B) Increase in hydrogen ion causes an increase in cerebral blood flow C) Decreased oxygen tension is the most important factor for the regulation of blood flow D) Hypoxia causes increased blood flow by vasodilation 27. Identify the false statement A) The ability of the heart to depolarize is dependent on the sympathetic nervous system B) The SA node is the cardiac pacemaker C) Electric current generated in the SA node are spread through the atrium and then to the ventricles D) The cells of the conduction system are non contractile 28. About the heart, A) The heart muscle behaves as a functional syncytium B) Intercalated discs allow the free passage of ions C) The vagus nerves gives parasympathetic supply to the heart D) AOTA 29. Concerning heart failure, A) It is defined as inability of the left heart to meet the metabolic demands of the body B) Systemic hypertension is an important cause C) Excess afterload leads to hypertrophy of the affected ventricle D) Excess preload leads to ventricular dilation 30. About shock, A) Hypovolemic shock is caused by a reduction in blood volume B) Vasogenic shock is caused by widespread dilation of blood vessels C) Cardiogenic shock can arise from myocardial infarction but not arrhythmias D) The aim of treatment of shock is to relieve physiologic compensatory mechanisms Your score is The average score is 0% 0% Restart quiz
