What will happen if the stretch receptors of the urinary bladder wall are totally removed?
Urine will not collect in the bladder
Micturition will continue
Urine will continue to collect normally in the bladder
Urine will continue to collect normally in the bladder
Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin?
Neutrophils
Basophils
Eosinophils
Eosinophils
A person who is on a longer hunger strike and is surviving only on water, will have
more sodium in his urine
less amino acids in his urine
more glucose in his blood
more glucose in his blood
A.
more sodium in his urine
The normal concentration of sodium in the blood plasma is 150 mEq/L. If this level drops below 120 mEq/L, the result may be lethargy, coma or death. Unlike deficiencies of other important fluid constituents, the most common cause of this drop in sodium concentration is not a nutritional deficit of sodium, but rather an excess of water.
Angiotensinogen is a protein produced and secreted by
macula densa cells
endothelial cells (cells lining the blood vessels)
liver cells
liver cells
Which of the following statements is correct?
The ascending limb of loop of Henle is impermeable to water
The descending limb of loop of Henle is impermeable to water
The ascending limb of loop of Henle is permeable to water
Match the items given in Column I with those in Column II and select the correct option given below:
Column I | Column II | ||
Function | Part of the Excretory system | ||
a | Ultrafiltration | i | Henle's loop |
b | Concentration of urine | ii | Ureter |
c | Transport of urine | iii | Urinary bladder |
d | Storage of urine | iv | Malpighian corpuscle |
v | Proximal convoluted tubule |
a | b | c | d |
iv | v | ii | iii |
a | b | c | d |
iv | i | ii | iii |
a | b | c | d |
v | iv | i | iii |
a | b | c | d |
v | iv | i | ii |
A hormone, secreted by the endocrinal cells of duodenal mucosa which influences the releases of pancreatic juice is
relaxin
cholecystokinin
Secretin
Progesterone
The ornithine cycle removes two waste products from the blood in the liver. These products are
CO2 and urea
ammonia and urea
CO2 and ammonia
ammonia and uric acid