Sebum production onto the skin's surface is known as

• elimination

• absorption

• sensation

• secretion

The function of the nail matrix is to

• provide protection for the nail plate

• protect underlying structures

• form sulphur to give nails strength

• produce new cells to form the nail plate

The action of the extensor carpi digitorum is to

• rotate the wrist

• extend the fingers

• rotate the thumb

• adduct the thumb

The fibres that are used during muscle contraction are

• anagen and catagen

• actin and myosin

• adrenal and telogen

• actin and mitosis

The function of bone is to

• store calcium and form red blood cells

• protect overlying structures and form white blood cells

• stimulate the action of nerves and provide support

• receive messages from the brain and allow movement

Bones are made up of

• cancellate and spongy tissue

• compact and cancellate tissue

• spongy and cancerous tissue

• compact and cancerous tissue

Veins carry blood at

• low pressure and have thick muscular walls

• high pressure and have thick muscular walls

• low pressure and have valves to prevent backflow

• high pressure and have valves to prevent backflow

The function of most arteries is to carry

• deoxygenated blood from the tissues back to the heart

• deoxygenated blood from the heart to the tissues

• oxygenated blood from the heart to the tissues

• oxygenated blood from the tissues back to the heart

The main function of a lymph node is to

• filter, and remove toxins and bacteria

• produce and distribute red blood cells

• filter, remove and dissolve fats and oils

• retain nutrients in the area for cell growth

Lymph vessels have

• thick muscular walls to carry lymph at high pressure

• thick muscular walls to carry lymph at low pressure

• a two-way circulatory system for efficiency

• valves to prevent backflow of lymph