The Endocrine System

Question 1

Endocrine system

Answer 1

One of the body’s major information systems that instructs glands to release hormones directly into the bloodstream. These hormones are carried towards target organs in the body.

Question 2

Gland

Answer 2

An organ in the body that makes hormones.

Question 3

Hormone

Answer 3

Chemical substances that circulate in the bloodstream and only impact target organs. They are produced in large quantities but disappear quickly. Their effects are very powerful

Question 4

Fight or flight response

Answer 4

The way an animal responds when stressed. The body becomes physiologically aroused in readiness to fight an aggressive or, in some cases, flee

Question 5

Adrenaline

Answer 5

A hormone produced by the adrenal glands which is part of the human body’s immediate stress response system. Adrenaline has a strong effect on the cells of the cardiovascular system stimulating heart rate, contracting blood vessels and dilating air passages