What are the two major parts of the nervous system?

• Central and Peripheral Nervous Systems

• Upper and Lower Nervous Systems

• Sensory and Motor Nervous Systems

• Brain and Spinal Cord

Identify the parts of the CNS and PNS.

a

b

c

d

Spinal Cord

Brain

Cranial nerves

Spinal nerves

Identify the parts of the neuron.

a

b

c

d

e

Axon

Myelin Sheath

Nucleus

Dendrites

Node of Ranvier

What does the autonomic nervous system control?

• Sensory receptors

• Internal organs and blood vessels

• Voluntary movements

• Skin and bones

The image shows a ____ neuron.

• Tripolar

• Bipolar

• Multipolar

• Unipolar

Which system has voluntary control over skeletal muscles?

• Central Nervous System

• Somatic Nervous System

• Peripheral Nervous System

• Autonomic Nervous System

Where does the process of myelination primarily occur in neurons?

• A. Cell body

• B. Axon terminals

• C. Axon

• D. Dendrites

Which part of the neuron is responsible for receiving signals from other neurons?

• A. Axon

• B. Myelin sheath

• C. Dendrites

• D. Synaptic terminals

Match the following

• Ependymal Cells

• Maintains blood brain barrier

• Oligodendrocytes

• Supports neuron cell bodies in the PNS

• Satellite Cells

• Maintain cerebrospinal fluid

• Astrocytes

• Makes the myelin sheath

• Microglia

• Fight infections in the CNS