Anatomy - Nervous System

The central nervous system is made up of __________.

• the brain and cerebellum
• the peripheral and autonomic nervous system
• the brain and spinal cord
• the cerebrum and the cerebellum

How many pairs of spinal nerves emerge from the spinal cord?

• 12
• 25
• 31
• 18

Nerves throughout the body other than the brain and spinal cord.

• Autonomic Nervous System
• Somatic Nervous system
• Peripheral Nervous System
• Central Nervous System

The part of the neuron that receives nerve impulses.

• axon
• dendrite
• cell body
• axon terminus

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

• unipolar
• bipolar
• dipolar
• multipolar

White matter has this insulating covering that increases the rate at which an impulse can be carried.

• Schwann Cell

• axon membrane

• Neurilemma

• Myelin Sheath

Neurons that have two processes extending from the cell body

• unpolar
• bipolar
• polar
• multipolar

When the net electrical charge inside of a neuron reaches +30mv, the result is ....

• a threshold potential

• an action potential

• the resting potential

• homeostasis

Gaps in the myelin sheath are referred to as

• nodes of Ranvier

• axon endings

• synapse

• neurotransmitters

Conduct impulses from one part of the brain or spinal cord to another part of the brain or spinal cord.

• motor neurons
• sensory neurons
• interneurons
• microglia