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The nervous system can be divided into the ​ (a)   (brain and spinal cord) and the ​ (b)   (nerves and ganglia). Cells of the nervous system are ​ (c)   , which conduct ​ (d)   , and ​ (e)   , which support and protect neurons.

• central nervous system
• peripheral nervous system
• neurons
• action potentials
• neuroglia

Tags

NGSS.MS-LS1-3

4. 5. Subdivision of the efferent division that transmits action potentials to smooth muscle, cardiac muscle, or glands; includes sympathetic and parasympathetic divisions.

• autonomic nervous system

• Subdivision of the efferent division that transmits action potentials from the CNS to skeletal muscle only

• central nervous system

• Consists of the brain and spinal cord

• somatic nervous system

• Subdivision of the efferent division that transmits action potentials to smooth muscle, cardiac muscle, or glands; includes sympathetic and parasympathetic divisions.

• peripheral nervous system

• Nerves and ganglia outside the CNS

• afferent division

• Transmits action potentials from sensory organs to CNS

Match the following.

• axon

• Branch of an axon.

• myelin sheath

• Long cell process from the cell body; conducts action potentials.

• dendrite

• Usually receives information and transmits it to the cell body.

• cell body

• Location of the nucleus and source of information for protein synthesis.

• collateral axon

• Insulating layer of cells around an axon.

Tags

NGSS.MS-LS1-3

What is the structure labeled 1?

c

collateral axon

cell body

axon terminals

axon

dendrites

nucleus

schwann cell

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

What is the structure labeled 2?

a

collateral axon

nucleus

dendrites

axon

cell body

axon terminals

schwann cell

Tags

NGSS.MS-LS1-2

What is the structure labeled 3?

b

schwann cell

axon

axon terminals

dendrites

collateral axon

nucleus

cell body

Tags

NGSS.MS-LS1-2

What is the structure labeled 7?

f

nucleus

cell body

axon

schwann cell

dendrites

collateral axon

axon terminals

Tags

NGSS.MS-LS1-2

What is the structure labeled 6?

g

axon

dendrites

collateral axon

schwann cell

nucleus

cell body

axon terminals

Tags

NGSS.MS-LS1-2

What is the structure labeled 4?

d

dendrites

axon

schwann cell

collateral axon

axon terminals

nucleus

cell body

Tags

NGSS.MS-LS1-2

What is the structure labeled 5?

e

schwann cell

collateral axon

cell body

axon

dendrites

axon terminals

nucleus

Tags

NGSS.MS-LS1-2