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PT602 > Nervous System > Flashcards

Nervous System Flashcards

1
Q

Nervous Systems splits into

A

Central Nervous System CNS

Peripheral Nervous System PNS

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2
Q

CNS contains

A

Brain

Spinal Cord

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3
Q

PNS contains

A

Somatic

Autonomic

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4
Q

Somatic is:

A

voluntary
motor input to skeletal muslces
sensory input from skin, joints, and muscles to CNS

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5
Q

autonomic splits into:

A

Sympathetic

parasympathetic

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5
Q

Autonomic is:

A

involunatry

motor and sensory input to and from smooth muscle, cardia muscles, and glands

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6
Q

sympathetic is

A

thoracolumnar division

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7
Q

parasympathetic is:

A

craniosacral division

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8
Q

How many pairs of spinal nerves?
Originate?
Exit?

A

31 pairs
originate from spinal cord and
exit via intervertebral foramen

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9
Q

How many cranial nerves?
Originate?
Exit?

A

12 pairs
from nuclei in the brain or neurons situated outside the brain
exit the cranial cavity via foramen

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10
Q

Cervical Vertebrae?

A

C1-C7

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11
Q

C1 exits?

C2 exits?

A

above C1

below C1

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12
Q

C7 exits?

C8 exits?

A

above C7

below C7

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13
Q

Thoracic vertebrae?

A

T1-T12

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14
Q

Lumbar Vertebrae?

A

L1-L5

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15
Q

Sacrum vertebrae?

A

S1-S5

16
Q

efferent neurons

A

nerve cells that carry information from the spinal cord

17
Q

their cell bodies reside in the ?

A

ventral horn of the spinal cord

18
Q

Efferent axons are conveyed from the ventral horn by way of ?

A

ventral root of the spinal nerve

19
Q

afferent neurons

A

nerve cells that carry information toward the spinal cord

20
Q

their cell bodies reside in?

A

DRG

dorsal root ganglion of the spinal cord

21
Q

Afferent axons are conveyed form the DRG to the ?

A

dorsal horn by way of the dorsal root

22
Q

Ventral and dorsal roots do what?

A

meet as they exit the intervertebral foramen IVF

23
Q

spinal nerve or mixed spinal nerve

A

carries both efferent and afferent fibers

24
Q

Spinal nerve splits into:

A

primary ventral ramus

primary dorsal ramus

25
Q

ventral and dorsal ramus convey

A

both afferent and efferent fibers

26
Q

Dorsal rami distribute ONLY to:

A

deep intrinsic back muscles
deep muscles of posterior neck
skin from poster scalp down to the buttocks

27
Q

Ventral rami distribute to:

A

anterior/lateral head and neck
anterior/lateral thorax and abdomen
pelvis and perineum
limbs

28
Q

cutaneous nerves convey:

A

sensory information from the skin to the CNS

29
Q

dermatome

A

the dorsal root of a single spinal nerve

30
Q

what supplies a dermatome

A

only a single spinal nerve

31
Q

one spinal cord level can contribute to:

A

multiple names peripheral nerves

32
Q

see dermatome map

A

see dermatome map

PT602 (15 decks)

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