Nerve cells

Question 1

Has a cell body………..

Answer 1

where most of the cellular structures are located and most protein synthesis occurs

Question 2

nerve cell function

Answer 2

Conduction of impulses

Question 3

Extensions of the cytoplasm from the cell body form

Answer 3

dendrites (which receive signals) and axons (which transmit signals), allowing the neurone to communicate with other nerve cells, muscles and glands

Question 4

The axon (the main extension of cytoplasm away from the cell body) is covered with a fatty sheath, which

Answer 4

speeds up nerve impulses. Axons can be up to 1m long in some animals and can therefore enable fast communication over long distances (from the brain all the way to the toes only using a few neurones!)