Cell Biology - Nerve tissue

During depolarisation

• K⁺ enters the cell

• K⁺ leaves the cell

• Na⁺ enters the cell

• Na⁺ leaves the cell

Na⁺ channels close & K⁺ channels open in.....

• Hyperpolarisation

• Depolarisation

• Threshold potential

• Repolarisation

Select all that apply:

What glial cells insulate the axons of nerves in the CNS and PNS?

• Schwann cell

• Oligodendrocytes

• Microglia

• Satellite cells

Which of the following relays electrical stimulation?

• Tight junctions

• Chemical synapse

• Desmosomes

• Gap junctions

What is the gap between neurons called?

• gap junction

• tight junction

• synapse

• desmosome

In mV what is the threshold potential?

• 50

• 70

• -70

• -50