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HSS305 Anatomy > Chapter 14: Spinal Nerves > Flashcards

Chapter 14: Spinal Nerves Flashcards

(70 cards)

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1
Q

how many pairs of spinal nerves

A

31

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2
Q

how many cervical nerve pairs

A

8

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3
Q

how many thoracic nerve pairs

A

12

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4
Q

how many lumbar nerve pairs

A

5

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5
Q

how many sacral nerve pairs

A

5

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6
Q

how many coccygeal nerve pairs

A

1

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7
Q

these are formed by merging two nerve roots together

A

spinal nerves

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8
Q

this contains motor axons from the ventral and lateral horn

A

ventral root

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9
Q

these contain sensory axons that enter into the dorsal horn

A

dorsal root

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10
Q

sensory is located in

A

dorsal root

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11
Q

motor is located in

A

ventral root

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12
Q

these contain cell bodies of the sensory neurons

A

dorsal root ganglia

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13
Q

define mixed nerve

A

contains motor and sensory axons

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14
Q

where do spinal nerves flow out

A

intervertebral foramen between adjacent vertebraes

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15
Q

The spinal nerves split into two

A

rami

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16
Q

what are the two rami of the spinal nerves

A

dorsal rami and ventral rami

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17
Q

what does the dorsal rami do

A

hold the motor and sensory nerves for the posterior trunk and back

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18
Q

what does the ventral rami do

A

hold motor and sensory information for the anterior and lateral trunk and extremities

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19
Q

these carry autonomic impulses to and from ganglion

A

rami communicants

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20
Q

these are bundles of axon fascicles with connective tissue covering

A

peripheral nerves

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21
Q

this connective tissue covers the individual axon

A

endoneurium

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22
Q

this connective tissue covers the fasicles of the nerve

A

perineurium

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23
Q

this connective tissue covers the whole nerve

A

epineurium

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24
Q

define plexus

A

ventral rami in the cervical, lumbar, and sacral spinal nerves that connect to make a network

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25
define the intercostal nerves
connection of ventral rami of thoracic spinal nerves
26
this is where axons from a ventral rami will split and join with axons from other adjacent ventral rami
plexus
27
what are plexus named for
their general region and their pathway
28
name the four plexuses
cervical, brachial, lumbar, and sacral
29
name the nerve in the cervical plexus
phrenic nerve
30
the nerves of the cervial plexus
C1-C4
31
where does the cervical plexus supply nerves to?
skin and muscles of neck
32
the nerves of the phrenic nerve
C3-C5 (help you stay alive)
33
these motor nerves of the phrenic nerve innervate at the
diaphram
34
what spinal n erves make the brachial plexus
C5-T1
35
where do the brachial plexus supply nerves to?
skin and muscles of upper extremities
36
name some nerves of the brachial plexus
musculocutaneous nerve, median, ulnar, axillary, and radial nerve
37
the motor nerves of the musculocutaneous nerve influence what part of the body
anterior upper arm
38
the sensory nerves of the musculocutaneous nerve influence what part of the body
lateral forearm
39
the motor nerves of the medial nerve influence what part of the body
anterior forearm and anterior and lateral hand
40
the sensory nerves of the medial nerve influence what part of the body
the anterior and lateral hand
41
the motor nerves of the ulnar nerve influence what part of the body
anterior forearm and anterior hand
42
the sensory nerves of the ulnar nerve influence what part of the body
medial, posterior, and anterior hand
43
the motor nerves of the axillary nerve influences what part of the body
deltoid and teres minor
44
the sensory nerves of the axillary nerve influence what part of the body
shoulder
45
the motor nerves of the radial nerve influece what part of the body
posterior arm, posterior forearm, posterior hand
46
the sensory nerves of the radial nerve influence what part of the body
posterior arm, posterior forearm, posterior and lateral hand
47
where is the lumbar plexus
L1-L4
48
the lumbar plexus supplies nerves to what area of the body
pelvic girdle and lower extremities
49
name two nerves of the lumbar plexus
femoral nerve and obturator nerve
50
the motor nerve of the femoral nerve influences what part of the body
anterior hip and thigh
51
the sensory nerves of the femoral nerve influence what area of the body
anterior thigh, medial lower leg, medial foot
52
the motor nerves of the obturator nerve influence what area of the body
medial thigh
53
the sensory nerves of the obturator nerve influence what area of teh body
medial thigh
54
what nerves for the spinal nerves
L4-S4
55
the sacral plexus supplies muscles to what part of the body
muscles and skin of lower extremities
56
the sciatic nerve split into what other nerves
tibial and common fibular
57
the common fibular nerve splits into what two nerves
superficial and deep fibular nerve
58
The sciatic Nerve is specifically just ______ functions of the ______
motor of posterior thigh
59
the motor nerves of the tibial nerve influence this part of the body
posterior lower leg
60
the sensory nerves of the tibial nerve influence this part of the body
posterior lower leg and plantar surface
61
the motor nerves of the superficial fibular nerves influence what part of the body
lateral lower leg
62
the sensory nerves of the superficial fibular nerve influence what part of the body
lateral lower leg
63
the motor nerves of the deep fibular nerve influence this part of the body
anterior lower leg
64
the sensory nerves of the deep fibular nerve influence this part of the body
anterior lower leg and dorsal surface of the foot
65
what is the pathway of nerve impulses that produce reflexes
reflex arc
66
name the parts of the reflex arc
sensory receptor, sensory neuron, inegrating center, motor neuron, and effector
67
what is the effector
response to impulse
68
what is the motor neuron
carrys the impulse from the CNS to affector
69
what is the sensory neuron
carrys the impulse from the receptor to CNS
70
what responds to stimuli in the reflex arc
sensory receptor

HSS305 Anatomy (20 decks)

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