A) Secretion of bicarbonate B) Protease inhibitors present in plasma C) Proteolytic enzymes secreted in inactive form D) The resistance of pancreatic cells Answer (Select an option above to get the answer):
(Single Best Answer) Question 193: Although more than 400 blood groups have been identified, the ABO blood group system remains the most important in clinical medicine because ?
A) It was the first blood group system to be discovered B) It has four different blood groups A, B, AB, O(H) C) ABO(H) antigens are present in most body tissues and fluids D) ABO(H) antibodies are invariably present in plasma when persons RBC lacks the corresponding antigen Answer (Select an option above to get the answer):
(Single Best Answer) Question 194: A 55 year old male accident victim in casualty urgently needs blood. The blood bank is unable to determine his ABO group, as his red cell group and plasma group do not match. Emergency transfusion of patient should be with ?
A) RBC corresponding to his red cell group and colloids/crystalloid B) Whole blood group corresponding to his plasma group C) O positive RBC and colloids/crystalloid D) AB negative whole blood Answer (Select an option above to get the answer):
A) Growth hormone B) Thyroxine C) Insulin D) Melanocyte Stimulating Hormone Answer (Select an option above to get the answer):
(Single Best Answer) Question 196: Several hormones regulate the tubular reabsorption of water and electrolytes at different sites in the nephron. Which of the following combination is correct ?
A) Angiotensin in distal tubule B) Aldosterone in collecting ducts C) ADH in proximal tubule D) ANP in loop of Henle Answer (Select an option above to get the answer):
(Single Best Answer) Question 197: Obstruction to the flow of CSF at the aqueduct of Sylvius will most likely lead to enlargement of ?
A) All the ventricles B) Only lateral ventricle C) Only fourth ventricle D) Both lateral and third ventricles Answer (Select an option above to get the answer):
A) Hering-Breuer inflation reflex B) Hering-Breuer deflation reflex C) Head's paradoxical reflex D) J-reflex Answer (Select an option above to get the answer):
A) Decreasing the activity of suprachiasmatic nuclei B) Increasing the serotonin N-acetyl transferase C) Decreasing the hydroxy-indole-o-methyl transferase activity D) Blocking the release of norepinephrine from sympathetic nerve terminals Answer (Select an option above to get the answer):