JH .Anatomy-Upperlimb Flashcards
which joint is a limited ball and socket joint
radiohumeral joint due to limitation of annular ligament
Name the main axio-appendicular muscles
trapezius, serratus anteior and rhomboid maj+minor.
Also subclavius, latissimus dorsi and levator scapulae
innervation of trapezius
cnXI
innervation of serrates anterior
long thoracic nerve
what does the dorsal scapula nerve innervate
rhomboid major, minor and elevator scapulae
which muscles make up rotator cuff
supraspinatus, infraspinatus, teres minor and subscapularis
which of the rotator cuff muscles attach to the greater and less tuberosities
greater tuberosity - supraspinatus, infraspinatus, theres minor.
Lesser - subscapularis
shoulder joint made of
head of humerus in gleaned fossa
anterior compartment of arm muscles
biceps brachii, brachialis and coracobrachialis.
innervation and action of anterior compartment of arm muscles
musculocutaneous nerve.
flexion of arm and forearm. (biceps also supinates forearm)
posterior compartment of arm
triceps brachii
innervation and action of triceps brachii
extension of arm and forearm.
radial nerve.
forearm anterior compartment muscles
superfical - pronator teres, flexor carpi radialis, palmar longus and flexor carpi ulnaris
Intermediate layer - flexor digitorum superficialis
deep layer - flexor pollicus longs, flexor digitorum proudness and pronator quadratus.
innervation of muscle of forearm (anterior compartment)
ALL Median nerve, except flexor carpi ulnaris and medial half of flexor digitorum superficialis (Ulnar nerve)
forearm posterior compartment superfical layer muscles
BRACHIORADIALIS. EXTENSOR CARPI RADIALIS LONGUS. EXTENSOR CARPI RADIALIS BREVIS.EXTENSOR CARPI ULNARIS.EXTENSOR DIGITI MINIMI. EXTENSOR DIGITORUM. ANCONEUS
action of anterior forearm
Flexion of the wrist and digits, pronation, abduction and adduction of the wrist.
action of posterior compartment of forearm
Extension of the wrist and digits, supination, abduction and adduction of the wrist.
innervation of posterior forearm
ALL radial nerve
posterior forearm muscles
supinator, extensor pollicus brevis, abductor pollicus longus, extensor pollicus longus, extensor indicis.
Thenar eminence (thumb base) make up + innervation.
Abductor pollicis brevis
Flexor pollicis brevis
Opponens pollicis
Innervation: Recurrent branch of the median nerve
hypothenar eminence make up and innervation
Abductor digiti minimi
Flexor digiti minimi brevis
Opponens digiti minimi
innervation : deep branch of ulnar nerve
brachial plexus originated from where
C5-T1
route of brachial plexus
passes through axilla to medial arm, cords travel round brachial artery
draw the basic brachial plexus
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draw the advanced brachial plexus
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what are the lumbricles and what do they do
they are intrinsic muscles of the hand that flex the metacarpophalangeal joints and extend the interphalangeal joints.
lumbricles attachment
attachment to tendons of flexor digitorum profundus.
innervation of lumbricles
medial nerve for lateral two and ulnar nerve for medial two.
name the two types of interossei
DAB and PAd - dorsal and palmar
invitation of interossei
ulnar nerve
what is carpal tunnel
compression of median nerve causing weakness in Thenar muscles.
get numbness in digits 1-3 and lateral half of 4.
what nerve supplies half of digit 4 and digit 5
ulnar nerve (c8- T1)
describe route of arteries in the upper limb.
subclavianarerybecomes theaxillary arteryat the lateral border of the first rib.
Becomes brachial artery just below the axilla as it crosses the inferior border of the teres major muscle.
terminating distal to the elbow by bifurcating into theradial arteryandulnar artery.
Distally, the ulnar artery continues as thesuperficial palmar arch, and the radial artery continues as thedeep palmar arch.
(other anatomses/arteries branching off this core route)
what is vena comitantes in upper limb
double wrapped veins around artery (uses pressure)
