Anatomy Chpt 11 part 3

Within the white matter of the spinal cord are bundles of axons that serve as the routes of communication to and from the brain. what are these called

• Spinal tracts

• decussion

• fascicles

• nerves

group of spinal tracts associated with balance and muscle tone

• extrapyramidal tracts

• pyramidal

• spinothalamic

• spinocerebellar

Spinal tract that is responsible for fine movements of hands, fingers, feet, and toes on the opposite side of the body

• extrapyramidal

• Corticospinal (pyramidal)

• spinocerebellar

• dorsal

Nerve fibers that are gathered together in bundles

• fascicles

• mixed nerves

• motor nerves

• sensory

How many cervical nerves are located in the spine C1-C8

• 10

• 5

• 8

• 2

How many thoracic nerves are located in the spine. T1-T12

• 8

• 5

• 12

• 10

How many Lumbar nerves are in the spine L1-L5

• 10

• 12

• 5

• 2

How many sacral nerves are in the spine S1-S5

• 5

• 10

• 12

• 6

Term that is referred to when most of the spinal cord tracts cross from one side of the body to the other in the brainstem. Sensory signal from the right side of the body are sent to the left side of the brain.

• mixed nerves

• decussation

• spinal atract

• .nerve impulse

Spinal nerves are part of the Peripheral nervous system (PNS)

• true

• false