exam 3 finally

Which system releases neurotransmitters between cells?

• Endocrine system
• Circulatory system
• Respiratory system
• Nervous system

Where are local potentials formed on a neuron?

• Soma and dendrites
• Myelin sheath
• Axon hillock
• Axon terminal

What type of potential is graded and varies in magnitude?

• Resting potential
• Local potential
• Action potential
• Threshold potential

Which type of neuron is most common in the body?

• Bipolar
• Multipolar interneurons
• Unipolar sensory
• Motor neuron

What happens during an inhibitory local potential?

• Hyperpolarization
• Threshold reached
• Repolarization
• Depolarization

Nerve impulses travel fastest along which type of fiber?

• Large unmyelinated
• Small unmyelinated
• Large myelinated
• Small myelinated

Which part of the neuron sends the action potential?

• Soma
• Dendrites
• Nucleus
• Axon

Neurotransmitters in the brain that are inhibitory include:

• Glutamate
• GABA
• Dopamine
• Serotonin

Saltatory conduction occurs:

• In dendrites
• Across the entire axon continuously
• Only in unmyelinated fibers
• From node to node in myelinated fibers

What forms myelin in the PNS?

• Microglia
• Schwann cells
• Astrocytes
• Oligodendrocytes