Chapter 9 NU 110

What is included in the Central nervous system?

• Brain

• Cranial Nerves

• Spinal Nerves

• Spinal cord

The somatic Nervous system is

• Voluntary

• Controls skeletal muscles

• Parasympathetic nervous system

• sympathetic nervous system

Dendrites

• Carry impulses away from the cell

• contain the myelin sheath

• contains the nodes of Ranvier

• Carry impulses to the cell

What is the purpose of the Myelin sheath?

Match the following

• Descending

• Afferent

• Ascending

• Efferent

• Motor

• Efferent

• Sensory

• Afferent

Glial cells

• Astrocytes

• Oligodendrocytes

• Microglia

• Ependymal

Polarized

• Stimulated

• Resting

• Falling

• Rising

Depolarized

• Stimulated

• Falling

• Resting

• Threshold

Sympathetic nervous system activation symptoms include

• Sweating

• Pupil constriction

• Diarrhea

• Glucose increases

• Bronchodilation

Parasympathetic nervous system is also known as