week 3

Question 1

Components of a neuron…

Answer 1

• cell body
• dendrites (recieve information)
• axon (passes info away from cell body)
• axon terminals (specific messenger molecules)

Question 2

What do glial cells do?

Answer 2

• produce myelin sheath
• support & protect nerve cells
• fight pathogens

Question 3

Process of action potential…

Answer 3

• depolarisation (Na+ ions move into cell)
• repolarisation (K+ ions move out of cell)
• hyperpolarisation (too many K+ ions moved out of cell)