Endocrine System

Question 1

What is a hormone?

Answer 1

Chemical substance produced in the body that controls and regulates activity of certain cells

Question 2

Two hormones responsible for maintenance of glucose level and where are they produced

Answer 2

Glucagon and insulin

Secreted from the pancreas

Question 3

What hormones are secreted by the adrenal medulla and their functions

Answer 3

Adrenaline - ‘fight or flight’
Noradrenaline - maintenance of blood pressure by causing vasoconstriction

Hormone is released in response to cope with stress

Question 4

What hormones are secreted by the adrenal cortex and their functions

Answer 4

Aldosterone - maintains the electrolyte balance in body
Cortisol- secretion is stimulated by ACTH and stress
Androgens - sex hormones

Question 5

What is secreted by the thyroid gland and what is the function

Answer 5

• secretes the thyroxin (iodine required for production)
• function to stimulate the metabolism rate
• promote growth and development

Question 6

Difference between pituitary gland and hypothalamus

Answer 6

Hypothalamus sends message to the pituitary gland to release the hormone.
The hypothalamus detects the change

Question 7

Chemical messenger definition

Answer 7

Chemical hormones secreted by the endocrine glands which are transported in the blood

Question 8

What is the function of the thyroid gland

Answer 8

To stimulate the rate of metabolism and promote growth and development
Hormones affects many aspects of the carbohydrate and lipid metabolism