Question

Which hormone controls the blood pressure in an emergency?
A. Thyroxine.
B. Prolactin.
C. Insulin.
D. Adrenaline.

Answer 1

Hint: The hormone secreted by the inner part of adrenal gland is mainly responsible for controlling the blood pressure in emergency. Under emergency conditions, it initiates a quick reaction to control the blood pressure by increasing heart rate and force of heart contractions.

Complete step by step answer:
-Adrenaline hormone is secreted in the adrenal medulla part of adrenal gland as well as by some of the central nervous system’s neurons. It is also known as an emergency hormone because it begins or initiates the quick reaction which makes the individual to think and respond quickly to the emergency or stress. It dilates the blood vessels going to the heart and the brain and thus increases the metabolic rate too. During emergency situations, adrenaline rapidly releases into the blood that triggers impulses to some others organs to create a specific response.
-Adrenaline comes under a class of epinephrine hormone that is produced by the body and secreted throughout the body when someone undergoes some type of emergency and traumatic situation and experience. It causes an increase in blood pressure as it increases the contraction forces of the heart, increased breathing rate, boost up energy levels, etc. Adrenaline or epinephrine hormone is known as fight and flight hormone.
Adrenal hormone is also known as epinephrine and acts quickly to raise the dropping blood pressure.
Hence, the correct option is (D) Adrenaline.

Note:
-Thyroxine hormone- secreted by thyroid gland. It plays a vital role in protein synthesis, bone growth; regulate protein fats and carbohydrate metabolism.
-Prolactin hormone- secreted by the anterior part of the pituitary gland. It plays an important role in development of mammary glands and production of milk called lactation.
-Insulin- secreted by pancreas. Its main function is to maintain the blood glucose level. It also helps in glycogenesis, lipogenesis and protein synthesis.