Question

Epinephrine and norepinephrine together are known as
A) Steroid
B) Protein
C) Catecholamine
D) None of the above

Answer 1

Hint: We have different glands in different part of the body that produce different hormones. These hormones are involved in the regulation and maintenance of different body functions.

Complete Answer:
- Hormones are called the chemical messengers as they secreted directly in the circulatory system. With the help of blood the hormones are reached to the organs and the tissue to maintain their function. There are many types of hormones that are secreted in the body to maintain the processes and function.
- Thyroxine and triiodothyronine are the two hormones secreted by thyroid glands, insulin, estrogen, progesterone, cortisol, etc.
- There are some hormones which are produced from nerve cells instead of endocrine glands they are termed as neurohormone. They are passing along the nerve cell and releasing to the blood in a region termed as neurohemal organs.
- Now, Epinephrine and norepinephrine are the hormones which are produced by the adrenal gland and also by the nerve cells, therefore they are the neurohormones.
- The hormone produced by the nerves and released to the bloodstream to continue the function. These hormones together are known as catecholamine that releases inside the circulatory system when a person is having some emotional stress.
- The norepinephrine, epinephrine, and dopamine are the main catecholamines.

Thus, the correct option is ‘C’. Catecholamine.

Note: Steroid hormones are classified into; progestogens, oestrogens, glucocorticoids, androgen, and mineralocorticoids. These hormones are secreted by the three steroid glands; ovaries, testes, and adrenal cortex and placenta during pregnancy.