Assertion. Semi-circular canals are present in the middle ear and they contain sensory cells responsible for the static balance of the body.

Reason. One end of each of the three semi-circular canals is widened to form an ampulla which contains the sensory cells for dynamic balance.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion. The tube/canal which transmits the air currents from the pinna to tympanum is termed as eustachian tube.

Reason. The eustachian tube equalizes the air pressure on either side of the ear drum allowing it to vibrate freely.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion. Hormones are the secretions from some glandular parts of the body which regulate certain physiological processes by chemical means.

Reason. Hormones are directly poured into the target organs which are usually very close to the source/gland secreting the hormones.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion. Adrenal medulla secretes glucocorticoids which regulate glucose levels of the blood.

Reason. Glucocorticoids, a kind of cortisone, stimulate the deposition of extra glucose in blood as glycogen in the liver and muscles. The roles of insulin and glucocorticoids are the same.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.