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nervous sys intro brachial plexius Flashcards

(58 cards)

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1
Q

central nervous system components (CNS)

A

bran and spinal cord

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2
Q

peripheral nervous system components (PNS)

A

cranial nerves and spinal nerves

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3
Q

autonomic nervous system components (ANS)

A

sympathetic and parasympathetic

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4
Q

PNS pathways (2)

A

afferent and efferent pathway

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5
Q

afferent pathway carry information

A

to the CNS

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6
Q

efferent pathway carry information

A

from the CNS

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7
Q

how many pairs of cranial nerves?

A

12

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8
Q

how many pairs of spinal nerves?

A

31

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9
Q

ANS subdivisions (2)

A

sympathetic and parasympathetic system

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10
Q

sympathetic sys aka

A

thoracolumbar

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11
Q

parasympathetic sys aka

A

craniosacral

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12
Q

Define: nucleus

A

aggregation of dendrites and nerve cell bodies in the CNS

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13
Q

Define: ganglion

A

aggregation of dendrites and nerve cell bodies in the PNS

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14
Q

Define: nerve

A

bundle of fibers (axons) in the PNS

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15
Q

Define: tract

A

bundle of fibers (axons) in the CNS

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16
Q

Define: commissure

A

tract in the CNS that crosses from one side to the other

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17
Q

Define: white matter

A

areas of myelinated axons

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18
Q

Define: gray matter

A

areas of unmyelinated axons, cell bodies, and dendrites

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19
Q

Spinal Nerve Branches (5)

A 
dorsal primary ramus
ventral primary ramus
ramus recurrens
white ramus communicans
gray ramus communicans
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20
Q

ANS ganglions and nerve (3)

A

paravertebral ganglion
splanchnic nerve
prevertebral ganglion

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21
Q

Spinal cord: areas of grey matter

A

Horns

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22
Q

Spinal cord: areas of white matter

A

Column

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23
Q

Spinal cord ends at

A

S2

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24
Q

pre-ganglionic autonomic fibers =

Study These Flashcards
A

white rami communicans

25
sensory fibers enter...of spinal cord
posterior horns
26
sensory fibers exit....of spinal cord
anterior horns
27
how many cervical vertebrae?
7
28
how many cervical spinal nerves?
8
29
axillary sheath contents?
axillary artery axillary vein brachial plexus
30
exit neck between scalenus anterior and scalenus medius muscles
ventral rami of C5-T1
31
Dorsal scapular nerve: cervical nerve? Muscle?
C5 | to rhomboid muscles
32
Long thoracic nerve: cervical nerve? Muscle?
C5-7 | to serratus anterior muscle
33
posterior cord is formed by?
3 posterior divisions
34
lateral cord is formed by?
anterior divisions of upper (sup) and middle trunks
35
medial cord is formed by?
anterior division of lower (inf) trunk
36
suprascapular nerve innervates:
supraspinatus and infraspinatus
37
dorsal scapular nerve innervates:
rhomboids and leator scapulae
38
long thoracic nerve innervates:
serratus anterior muscle
39
upper subscapular nerve innervates:
subscapularis muscle
40
medial pectoral nerve innervates:
pectoralis major and minor
41
thoracodorsal nerve innervates:
latissimus dorsi
42
lower subscapular nerve innervates:
subscapularis, teres major
43
lateral pectoral never innervate:
pectoralis major
44
musculocutaneous nerve supplies the...
anterior brachium
45
Ulnar nerve spinal nerves?
C8 and T1
46
Superior (upper) trunk spinal nerve(s)?
C5 and C6 ventral rami
47
middle trunk spinal nerve(s)?
C7 ventral ramus
48
inferior (lower) trunk spinal nerve(s)?
C8 and T1 ventral rami
49
superior trunk nerves?
suprascapular nerve and nerve to subclavius
50
anterior division cords?
lateral and medial cords
51
posterior division cord?
posterior cord
52
lateral cord forms what trunks?
superior and middle trunks
53
medial cord forms what trunks?
inferior trunk
54
Terminal branches of posterior cord?
Axillary and radial
55
Terminal branches of lateral cord?
musculocutaneous
56
Terminal branches of medial cord?
ulnar
57
base of axilla formed by?
pectoralis major
58
thalamus formed from?
diencephalon

Anat 1 (19 decks)

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