Endocrine System Overview Quiz

What is the primary function of the hormone thyroxin produced by the thyroid gland?

Which hormone is responsible for controlling water concentration in the blood?

What effect does adrenalin NOT have on the body?

Which hormone stimulates ovulation and the development of the corpus luteum?

Which hormone produced by the pancreas decreases blood glucose levels?

What is the role of aldosterone in the endocrine system?

Which of the following hormones is responsible for stimulating puberty in females?

The main function of glucagon is to:

What is the effect of adrenalin on heartbeat?

Which gland is responsible for the secretion of growth hormone?

What is the function of insulin in the human body?

Which hormone is secreted by the ovary to stimulate puberty in females?

Which hormone regulates the concentration of salt in the blood?

What is one primary effect of the hormone glucagon?

What hormones do the adrenal glands produce?

What hormone stimulates the mammary glands to secrete milk?

Endocrine System Overview

The endocrine system coordinates and regulates bodily activities through chemical messengers called hormones.
Glands produce hormones that act on target organs.
Figure 7.1 shows endocrine glands and their functions.

Hypothalamus

Produces ADH (antidiuretic hormone).
Target organ: Kidney
Regulates water concentration in the blood.

Pituitary Gland

Produces GH (growth hormone).
Controls growth.
Produces TSH (thyroid stimulating hormone), stimulating the thyroid gland to produce thyroxin.
Produces FSH, LH, and prolactin.
- FSH: Stimulates follicle development in ovaries.
- LH: Stimulates ovulation and corpus luteum development.
- Prolactin: Stimulates milk production.

Thyroid Gland

Produces thyroxin.
Regulates the body's metabolic rate.

Adrenal Gland

Produces adrenalin.
Increases heart rate, blood pressure, glycogen conversion, blood supply to muscles, muscle tone, breathing rate and pupil diameter.
Decreases blood flow to digestive system and skin.

Aldosterone

Target organ: Kidneys
Regulates salt concentration in the blood.

Ovary (Females)

Produces estrogen and progesterone.
Estrogen stimulates puberty in females and thickens the endometrium.
Progesterone thickens the endometrium, maintains pregnancy.

Pancreas (Islets of Langerhans)

Produces glucagon which stimulates conversion of glycogen to glucose, increasing blood glucose levels.
Produces insulin which stimulates conversion of glucose to glycogen, reducing blood glucose levels.

Testes (Males)

Produces testosterone.
Stimulates sperm cell maturation and male puberty.

Test your knowledge of the endocrine system, including its glands and hormones. This quiz will cover the functions of hormones produced by the hypothalamus, pituitary gland, thyroid gland, and adrenal gland. Understand how these hormones regulate the body's activities.