lecture 10- functional anatomy of the nervous system Flashcards
portions of the CNS thst contribute to control of human movement
hypothalams= sleep, wake up, movement
cerebellum= recieves and processes visual information for the body in space error checker cordnation of the 4 lobes
occipital
frontal
temporal
parital
Lumbar region
T12-S5
cervicle region
C1-T4
what is the grey matter?
purple?
white matter?
grey matter=body of axons
white matter= mycellium= allows action potentials to tavel quicker
purple= arachnoid CSF
Dura matter
Arachnoid
Pia matter
DAP
2 roots that make up spinal cord pathways
- motor and descending (efferent) pathways
-pryamidal tracts
-extrapyramidal tracts - sensory and assending pathways
-dorsal column medial lemniscus system
-spinocerebellar tracts
-anterolateral system
spinal nerves
posterior root
posterior ramus
anterior ramus
anterior root
draw the terminla nerve branches diagram
remember to drink cold beer
roots
trunks
divisions
cords
terminal nerve branches
C5-T1
brachial plexus
superior trunk-C5&6
middle trunk- C7
inferior trunk-C8 & T1
brachial plexus cords
brachial plexus nerve
musculocutaneous nerve
median nerve
axillary nerve
radial nerve
ulnar nerve
draw the brachial plexus with nerve endings attached
musculocutaneous
axillary nerve
radial nerve
median nerve
dermatones of upper limb
spinal segment/ nerve(s)
C3,C4
extending laterally over shoulder
descripton of deratome
C5
lateral aspect of arm (superior aspect of abducted arm)
C6
lateral forarm and thumb
C7
middle and ring fingers (or middle three fingers) and center of posterior aspect of forearm
C8
little finger, medial side of hand and forarm (interfior aspect of abducted arm)
T1
medial aspect of forearm and interrior arm
T2
medial aspect of superior arm and skin of axilla
glenohumeral
myotome
C5
glenohumeral (shoulder) joint
lateral rotation
abduction
flexion
myotome
C6, C7, C8
glenohumeral
glenohumeral joint
adduction
medial rotation
extension
elbow joint
C5, C6
flexion
distal flexion
extension
C7, C8
wrist joint
C6, C7
extension
flexion
elbow joint
extension
C6, C7
wrist pronation
C7, C8
wrist supination
C6
lateral abduction
medial abduction
T1
name the nerve root and muscle
shoulder abduction
C5
deltoid
axiallry
name the nerve root and muscle
elbow flexion
C5/C6
musculocutaneous biceps
C6
brachioradialis
radial
name the nerve root and muscle
elbow extension
C7
tricep
radial
name the nerve root and muscle
radial wrist extension
C6
extensor carpi
radialis loungus
radial
name the nerve root and muscle
finger extension
C7
extensor
posterior
digitorum communis
interosseus nerve
name the nerve root and muscle
finger flexion
C8
flexor pollicis longus+ flexoe digitorum profundus (index)
anterior interossus nerve
flexor digitorum profundus (ring+ little)
ulnar
name the nerve root and muscle
finger abduction
T1
first dorsal interosseous
ulnar
abductor pollicis brevis
median
common nerve issues
can be injuired with shoulder dislocation
axillary
common nerve issues
can be injuired with mid-humeral fraction
radial
common nerve issues
can be entrapped at the elbow or wrist
ulnar nerve
common nerve issues
can be entrapped at the cubital fossa, or by pronator teres, aslo carpal tunnel
median nerve
common nerve issues
can become entrapped by the coracorbrachials
musculocutaneous
whats at risk during a humeral shaft fracture
radial nerve
claw hand
lower brachia plexus injuires
ulnar nerve
waiters tip deformity
when the arm is medially rotated =, wrist is flexed, and fingers are bent
casued by injury to the upper brachial plexus
C5&C6
