Chapter 35, Problem 28A

Summary Introduction

Introduction:

Hormones are called the chemical messengers. With the help of blood the hormones are reaches 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.

Answer to Problem 28A

Correct answer:

The correct answer is option (D) norepinephrine and epinephrine.

Explanation of Solution

Explanation/justification for the correct answer:

Option (D) norepinephrine and epinephrine. Epinephrine and norepinephrine are the hormones that are produced by the adrenal gland and also by the nerve cells, therefore, they are the neurohormones. The hormone is produced by the nerves and released to the bloodstream to continue the function. So, the correct answer is option (D).

Explanation for incorrect answer:

Option (A) Antiduiretic hormones and oxytocin. Oxytocin is a neurohormone but Antiduiretic is not a neurohormone. Antidiuretic hormone is produced by the hypothalamus gland. So, this is an incorrect option.

Option (B) growth hormone and thyroxine. Thyroxine is a neurohormone that is produced in nerves and releases to the blood but the growth hormone is secreted by the adrenal gland. So, this is an incorrect answer.

Option (C) insulin and glucagon. Insulin and glucagon are hormones produced by the pancreas gland, they are not neurohormones. So, this is an incorrect answer.