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Nervous system Flashcards

1
Q

functions of the nervous system

A

body control centre and communication network
sense changes and interpret changes and respond to changes

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2
Q

neurons

A

transmit electrical impulses

motor
and sensory

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3
Q

glial cells

A

provide protection and nutrients

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4
Q

central nervous system

A

brain and spinal chord
protected by the axial skelton

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5
Q

peripheral nervous system

A

cranial and spinal nerves
connect to CNS
connect to skin and glands

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6
Q

cranial nerves

A

12 nerves that emerge from brain and brainstem
supply muscles/ skin of head and neck
supply viscera of thorax and abdomin

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7
Q

spinal nerves

A

31 pairs
8-cervical
12-thoracic
5-lumbar
5-sacral-1-cocygeal

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8
Q

dorsal root

A

where sensory neurons come into spinal chord posterior

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9
Q

venteral root

A

where motot neurons come into spinal chord anterior

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10
Q

spinal nerve

A

where the motor and snesory neuron join
usually at exit of the veterbral collum

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11
Q

dorsal ramus

A

supply muscles and skin on the back

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12
Q

venteral ramus

A

supply anterior muscle and skin and limbs

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13
Q

branches of spinal nerves

A

dorsal and venteral ramus

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14
Q

sensory distribution of nerves

A

to skin- sensation= hot or cold
to joints= sensation of joints- propreoception

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15
Q

propreoception

A

bodies own awareness of own postion of joints

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16
Q

motor distribution

A

goes to muscle= turn muscle on
therefore it will develop tension

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17
Q

cervical plexus

A

C 1,2,3,4
neck and diaphragm

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18
Q

brachial plexus

A

C 5 6 7 8 T 1
upper limb

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19
Q

Lumbar plexus

A

L 1 2 3 4
supplies lower limb

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20
Q

lumbosacral plexus

A

L 4 5 S 1 2 3
lower limb

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21
Q

what happens when nerves join and plat

A

they change direction

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22
Q

genitofemoral nerve

A

sit on top of psoas major

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23
Q

lateral femoral cutaenous nerve

A

wrap around illacus and aroun ASIS
Skin and sensory

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24
Q

femoral nerve ROOT

A

L 2 3 4

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25
FEMORAL NERVE
L 2 3 4 UNDER PSOAS MAJOR INFRONT OF ILLACUS
26
obturator nerve root
L 2 3 4 deep towards obturator foramen
27
siatic nerve root
L 4 5 S 1 2 3 large
28
femoral nerve sensory distribution
skin of anterior/ medial thigh/ knee and hip joint
29
femoral nerve motor distribution
illiacus pectineus satorious quads group
30
saphenous sensory distribution
skin of medial thigh and base of 1st phalanges branch of femoral nerve
31
obturator nerve motor distribution
pectineus adductor brevis adductor longus adductor magnus anterior half obturator externus gracilis
32
obturator nerve sensory distribution
skin of medial thigh and hip joint
33
lateral femoral cutaenous sensory
skin of lateral thigh
34
genitofemoral sensory distrubution
skin of medial thigh and skin of external genitals
35
muscular branches
straight off pelvis and to muscle motor distribution is illacus psoas ajor and hip joint
36
posteior femoral snesory distribution
skin of posterior thigh and leg to mud calf
37
superior gluteal nerve motor distrubution
glut medius glut minimus TFL
38
superior gluteal sensory
hip joint
39
inferior gluteal nerve motor distribution
glut max
40
inferior gluteal nerve sensory distubution
hip joint
41
muscular branches of lumbrosacral plexus
motor is deep external rotators mimus obt externals sensory is hip joint
42
siatic nerve motor
hamstrings and posterior half of adductor magnus
43
siatic nerve sensory
hip and knee joint
44
siatic nerve splits
tibial common preoneal deep peroneal
45
tibial nerve
gastrocs soleus plantarus popliteus TP FHL FDL SPLITS BEHIND LATERAL MALLEOUS INTO medial and lateral plantar AND SUREAL
46
medial plantar
ABD hall FDB FHB Skin of medial and 3 and 1/3 digits joints of foot
47
lateral plantar
FDMB ADD HALL 2,3,4 lumbricals interossei ADDM FA Skin of lateral and 1 1/2 digits
48
sural
common peroneal and tibial region skin of lateral and posterior leg
49
common peroneal
wraps around neck of fibula knee joint and skin of anterior and posterior lateral upper leg superfical peroneal is PL PB skin of lat leg and dorsum of foot
50
deep peroneal
TA EHL EDL PT EDB under the retinacula ankle and foot joints skin between digits 1 and 2
51
sural description
between 2 gastrocs ead lateral to achilies tendon pass behind lateral malloulous runs foward lateral foot
52
femoral tiangle
is made of satorious adductor longus and inginuial ligament arery and nerve supply is superficial so vunerable to damage
53
femoral nerve description
runs in groves between illacus and psoas major runns under inginual ligament divides into branches after femoral trinagle
54
sciatic nerve description
leaves pelvis enters glut region through greater sciatic foramen sits bellow pilliforms down back of thigh splits at back of knee
55
tibial nerve description
through popliteus fossa b/w semiten and biceps fem pass deep to gastroc decends oblique to fdl fhl pass behind medial mallolous and enter plantar of foot
56
peroneal description
pass upper popliteal fossa pass around neck of fib divides into superfical and deep super- b/w edl pl over extensor ret deep= superfical to ehl edl
57
nerve legions
some form of damage to a nerve
58
close to skin nerves are vunerable to
penertrating injury
59
if nerve is between skin and bone vunerable to
crushing injury
60
if nerve is between retinacula and bone
it is vinerable to squashing
61
if nerve on bone vunerable to
fracture
62
types of legions
paralyisis paresis loss of sensation ( seen distal to legion )
63
myotome
group of muscles supplied by one spinal nerve
64
dermatome
sensory teriotry supplied by a single nerve
65
the hip supplied
flexion- L2 L3 extension L4 L5
66
KNEE SUPPLID
extension L3 L4 flexion L5 S1
67
ankle supplied
flexion L4 L5 extension S1 S2
68
TOES SUPPLIED
extension L5 S1 flexion S1 S2
69
Dermatome L1
medial upper thigh lateral hip anterior hip distial to inguinial ligament
70
demratome L2
lower hip lateral hip upper anterior thigh medial thigh
71
dermatome L3
mid lateral thigh down lower anterior thigh across midial knee joint to medial upper leg anterior
72
dermatome L4
lower lateral thigh to medial knee joint anterior leg lower medial leg medial dorsum of foot
73
S1 dermatome
lateral glut max down lateral posterior thigh lateral knee posterior lateral leg anterior lateral dosum of foot
74
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Anatomy (32 decks)

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