Buo 223A Review Questions

Question 1

Axons

Answer 1

May form collateral axon, surrounded by myelin sheets, carry action potential away from cell, axon hillock is in there

Question 2

Gaps between segments of oligodendrocytes are called

Answer 2

Nodes of ranvier

Question 3

The resting membrane potential

Answer 3

Occurs because the cell membrane remains ( sodium potassium pump look into it) , occurs because there are negatively changed protein ions , cell member is more permeable

Question 4

Chemical substances released from the presynaptic terminal

Answer 4

Bind to receptors on the postsynaptic, may inhibit or stimulate an action potential in the postsynaptic membrane depending on the receptors, neurotransmitters, browned down by enzyme

Question 5

Which type of cell is composed of one dendrite and one axon and is found in the yenand nose?

Answer 5

Bipolar neuron