Neuron Structure and Action Potential

Which is the following is represented by the letter B?

• cell body

• nucleus

• dendrite

• axon

Which is represented by the letter E?

• Axon

• Myelin sheath

• schwan cells

• terminal branches

Nerve fibers in the neuron that carries impulses toward the cell body:

• axon

• dendrite

• nucleus

• myelin sheath

The space between neurons:

• neurotransmitter

• synapse

• terminal branches

• schwann cells

Type of neuron that carries messages from the brain/spinal cord to the body

• Afferent/Sensory

• Efferent/Motor

What generates a nerve impulse on the post-synaptic membrane? 

• Calcium binding with a receptor site
• Potassium leaking into the post-synaptic membrane 
• Neurotransmitter binding with receptor sites
• Neurotransmitter being removed from the synapse

Chemicals released into a cleft when an action potential reaches the terminal are called.....

• ligand gated ion channels

• synaptic vesicles

• neurotransmitters

• voltage gated ion channels

Serotonin is a neurotransmitter that helps regulate:

• learning and memory
• pain and pleasure
• muscle movements
• sleep, moods/emotions

The tiny gap between neurons where nerve impulses are sent from one neuron to another.

• synapse

• axon terminal

• impulse

• myelin

What are the two parts of the nervous system? 

• The brain and spinal cord
• The central nervous and peripheral nervous system 
• The neurons and the dendrites
• The cerebrum and the medulla