Anatomy Flashcards
- Brachial plexus – cord levels
C5-T1
Erb Duchennes Paulsy
C5-6, fall on shoulder, child birth stress, axillary, musculocutaneous, and suprascapular n., waiter’s tip position
Klumpke Paralysis
C8-T1, pulling baby by outstretched arm, catching oneself while falling from tree, ulnar and median nerves, flexion, supination at elbow, wrist extension, claw hand
Paralysis of deep branch of radial nerve, can’t ____ hand, test by extending MP joints and looking for ______
Extension, tendons on dorsum of hand
Fracture at midshaft of humerus (or saturday night paulsy) what nerve? what muscles? what sensation?
Radial, brachioradialis, extensors of wrist and fingers, supinators, tricpes, posterior arm, dorsal thumb, dorsal hand
Sign: radial deviation of wrist upon flexion, what sensory
lesion of ulnar nerve at medial epicondyle, medial 1.5 digits
Distal Lesion, three muscle actions, sensory, and sign
fracture of hook of hamate, interossei (ab/adduction of fingers, lumbricals (flexion of 4th and 5th digits, adduction of thumb, hand of benediction
Froment’s sign is done by _______, and tests the ________
having pt pinch piece of paper between thumb and pointer finger, adductor pollicis
in carpal tunnel you will get _____ deviation upon wrist flexion
ulnar
ape hand is a defecit in ____ due to ____-
oppositon of the thumb, median lesion at the wrist impairing the thenar muscles
two variations of sign of benediction
Distal ulnar lesion (4th and 5th digits clawed)
Proximal Median lesion: (can only flex 3rd and 4th due to ulnar lumbricals still in tact)
can be injured in masectomy and causes winged scapula
Long Thoracic Nerve
levator scapulae and rhomboideus major
Dorsal scapular n. C5
serratus anterior
Long thoracic n. C5-7
supraspinatus and infraspinatus
Suprascaular n. C5-6
subclavius
subclavius C5-6
pectoralis major and minor
medial pectoral nerve C8-T1
cutaneous innervation to medial forearm
medial brachial cutaneous C8-T1
pectoralis major
lateral pectoral C5-7
subscapularis and teres major
Subscapularis C5-6
latissimus dorsi
Thoracodorsal C6-8
deltoid and teres minor
axillary C5-6
extensors of wrist and fingers, supinators, brachioradialis, triceps
radial
: interossei, adductus pollicis, lumbricals of 4th and 5th fingers, flexor carpi ulnaris, ulnar portion of flexor digitorum profundus, hyypothenar muscles
Ulnar
biceps, brachialis,, coracobracialis (arm flexors)
o Sensory to the lateral forearm
musculocutaneous C5-6
muscles of the forearm except carpi ulnaris, muscles of the thenar
median n.
Colle’s Fracture
FOSH, break, scaphoid, radius, and ulna, distal fragment of radius overriding rest of bone
muscles of the rotator cuff
Subscapularis
Infraspinatus
Teres minor
Supraspinatus
carpal tunnel contains
Median n.
Four tendons of flexor digitorum superficialis
4 tendons of flexor digitorum profundus
Tendon of flexor pollicis longus
Inverted prayer position to test for carpal tunnel syndrome
If pain then it is +
Phalens test
- Finkelstein’s Test
Used to detect De Quervain tendosynovitis
An inflammation fo the synovial sheath of the abductor pollicis longus and extensor pollicis brevis, ulnar deviate wrist and tuck thumb into fist.
avulsion fracture of the humerus results in_____-
subscapularis pulling the humerus into medial rotation
Pain in snuffbox can indicate a _______ fracture which may affect the _____ artery, and can result in _______
scaphoid, radial ,necrosis
Test FDP by
flexing only the distal phalanx
Test FDS by
flexing the PIP and MP while keeping the DP extended
