Question

During deep sleep there is a fall in

A. Hand skin temperature.

B. Arterial PCO2.

C. Blood growth hormone/cortisol ratio.

D. Metabolic rate.

E. ***** formation.

Answer 1

A. False Skin temperature rises due to vasodilation.

B. False The level rises due to hypoventilation.

C. False Growth hormone level is higher, cortisol lower in sleep.

D. True Due to slowing of metabolism and a fall in catecholamine level.

E. True The antidiuretic hormone level is higher in sleep.