Question

1. The Efferent arteriole supplies blood to:

1. Renal artery
2. Renal vein
3. Peritubular capillaries
4. Interlobular artery

2. Antidiuretic hormone ADH is produced and secreted from:

1. Pituitary gland
2. Adrenal cortex
3. Pancreas
4. Kidney

3. Water is reabsorbed by renal tubule through the process of:

1. Diffusion
2. Filtration
3. Osmosis
4. Reverse osmosis

4. During urine formation, movement of substances from plasma to renal tubule is called:

1. Secretion
2. Reabsorption
3. Osmosis
4. Diffusion

5. When concentration of water in body fluids such as blood increases, secretion of ADH _____________:

1. Increases
2. Decreases
3. Stays same
4. Is not affected

Answer 1

Answer 1 - correct option is c, that is peritubular capillaries.these are tiny blood vessels supplies by efferent arterioles.

Answer 2- correct option is a,that is pituitary gland. ADH is also called as vasopressin .it is produced by hypothalamus and secreted by posterior pituitary.

Answer 3- correct option is osmosis. Water reabsorption in kidney occurs in proximal renal tubular with the help of certain aquaporin channels through which water reabsorption occurs through osmosis.

Answer 5- correct option is b because ADH is anti diuretic hormone .it means when there is more water in the body ,then ADH secretion starts to decrease beacuse if it starts to increase then the fluid amount in the body will also increase which further leads to complications.as abecause there is already increased amount of water in body,ADH secretion should be decreased.