Question

Uterine contractions during childbirth is an example of positive feedback.

Select one:

True

False

If the macula densa cells detect increased NaCl in the ascending limb of the nephron loop, the GFR will increase in response.

Select one:

True

False

If the stomach is full, increasing the release of somatostatin will __________.

Select one:

A. Inhibit the activity of the stomach, but stimulate the activity of the small intestine and accessory organs

B. Inhibit the activity of the stomach, small intestine, and accessory organs

C. Stimulate the activity of the stomach, but inhibit the activity of the small intestine and accessory organs

D. Stimulate the activity of the stomach, small intestine, and accessory organs

Secretion of atrial natriuretic peptide will increase blood pressure.

Select one:

True

False

B lymphocytes directly target and kill our body cells that have become cancerous.

Select one:

True

False

Bile digests fat.

Select one:

True

False

Answer 1

1.

Uterine contractions during childbirth is an example of positive feedback.

TRUE

Natural Uterine contractions during childbirth are positive feedback, it is by the hormone called oxytocin which is produced by the hypothalamus and secreted by the pituitary gland.

2.

If the macula Densa cells detect increased NaCl in the ascending limb of the nephron loop, the GFR will increase in response

FALSE

When macula Denisa cells detect increased NaCl in the ascending limb of the nephron loop, the GFR will decrease due to the constriction of the afferent arteriole, called tubuloglomerular feedback.

3.

If the stomach is full, increasing the release of somatostatin will Inhibit the activity of the stomach, small intestine, and accessory organs.

B. Inhibit the activity of the stomach, small intestine, and accessory organs

Somatostatin have the inhibitory effects, it usually releases when the stomach is empty to stop the secretion of HCL and to inhibits the intestine mortality.

4.

The secretion of atrial natriuretic peptide will increase blood pressure.

FALSE

The secretion of atrial natriuretic peptide decreases the blood pressure by vasodilation and diuresis.