The Endocrine System

Question 1

What is the endocrine system?

Answer 1

This controls growth and development and is made up of a number of glands called endocrine glands.

Question 2

What is a gland?

Answer 2

This is a structure that secretes a specific chemical substance.

Question 3

What are the two types of glands?

Answer 3

Endocrine gland and
Exocrine gland

Question 4

Describe exocrine glands , some types and what they secrete

Answer 4

They transport their secretions by ducts to other parts of the body.

Example: 1. Salivary gland - in the mouth secrete saliva into the mouth
2. Tear gland- by the eye secrete fluid onto the eye’s surface
3. Pancreatic gland- pancreatic juice

Question 5

Describe endocrine glands, some types and what they secrete

Answer 5

They secrete chemicals called hormones directly into the bloodstream from the gland to its target organ.

Example: 1. Pituitary gland- pituitary growth hormone
2. Thyroid gland- thyroxin
3. Adrenal gland- Adrenalin
4. Ovaries - progesterone, oestrogen
5. Testes- testosterone
6. Pancreas - insulin

Question 6

What is the function of the pituitary growth hormone?

Answer 6

It controls the growth of