Question

2.
Which of the following would not result from the release of adrenaline (epinephrine)?
(1) Decreased blood flow to skin
(2) Increased oxygen consumption
(3) Rise in blood pressure
(4) Increased conversion of glycogen to glucose
(5) Increased blood flow to intestine​

Answer 1

Answer:

Decreased blood flow to skin

(2) Increased oxygen consumption

(3) Rise in blood pressure

(4) Increased conversion of glycogen to glucose

(5) Increased blood flow to intestine

Answer 2

Answer:

Decreased blood flow to the skin would not result from the release of adrenaline (epinephrine). The correct option is (1)

Explanation:

In an emergency or in any stress conditions (like injury, pain, fear, accident, and grief), impulses from the hypothalamus stimulate the sympathetic preganglionic neurons. Which in turn stimulates the chromaffin cells (hormone-producing cells present in the adrenal medulla) to secrete epinephrine (adrenaline) and norepinephrine (noradrenaline). Hence these are called emergency hormones or hormones of Fight or Flight.

• Adrenaline increases the heart's output by increasing heart rate and force of contraction, which increases the systolic blood pressure.
• It also increases the blood flow to the heart, liver, intestine, skin, skeletal muscles, and adipose tissue.
• Epinephrine stimulates glycogenolysis (to convert stored glycogen to glucose) in the liver and releases it into the bloodstream, which causes an increase in blood glucose levels.
• The release of adrenaline also increases oxygen consumption.

So, the decreased blood flow to the skin would not result from the release of adrenaline (epinephrine). The correct option is (1)