Communication systems of the body

Question 1 of 10

The two main communication systems of the body are the

Question 2 of 10

Nerve impulses travel along the

Question 3 of 10

Chemicals that carry signals across a synapse between neurones are

Question 4 of 10

During an action potential, depolarisation is caused by

Question 5 of 10

Steroid hormones act on target cells by

Question 6 of 10

Hormones are carried around the body in the

Question 7 of 10

Adrenaline is produced by the

Question 8 of 10

The thyroid gland produces

Question 9 of 10

The gland often called the "master gland", because it controls other glands, is the

Question 10 of 10

The gap between two neurons is a