Neuromuscular Junction & Neurons

Dopamine is a chemical released by neurons that stimulates the pleasure and reward centers of the brain. This means that dopamine is a

• Enzyme

• Lymphatic Fluid

• Neurotransmitter

• Hormone

The part of the neuron that receives messages from other neurons

• axon
• dendrite
• cell body
• Schwann cell

What is the gap between the axon terminal of one neuron and the dendrite of the next neuron called?

• Synapse
• Node of Ranvier
• Joint
• Neuromuscular Junction

What is the specific neurotransmitter that stimulates the movement of skeletal muscles?

• GABA

• Acetylcholine

• Serotonin

• Dopamine

Once ACh binds to receptor cells on the sarcolemma, what takes place?

• Sarcolemma becomes temporarily permeable to sodium.

• The muscle contracts.

• Calcium is pumped into the axon terminal.

• Synaptic vesicles move to the end of the terminal.

2.Neurons that have a single process extending from the cell body.

• unipolar

• bipolar

• dipolar

• multipolar

5.Support neurons and phagocytize bacterial cells and other debris.

• microglia

• astrocytes

• ependymal cells

• oligodendrocytes

10.A

• Dendrite

• Axon

• Axon Terminal

• Cell Body

13.What is structure labeled F in the picture?

• Nucleus

• Schwann Cell

• Node of Ranvier

• Myelin Sheath

16.What type of cell creates a myelin sheath?

• Schwann cell

• Oligodentrite

• Osteocyte

• Cell Body