Anatomy - Upper Limb Flashcards
what two muscles make up the anterior border of the axilla?
pectoralis major
pectoralis minor
what is the origin of the pectoralis major?
anteromedial clavicle
manubrium
what is the insertion of the pectoralis major?
intertubular sulcus of the humerus
what is the nerve supply to pectoralis major?
brachial plexus
which movements does pectoralis major enable?
adduction, flexion and internal rotation of the arm
what is the origin of pectoralis minor?
ribs 3-5
what is the insertion of pectoralis minor?
coracoid process of the scapula
what is the nerve supply to pectoralis minor?
brachial plexus
name the muscles the make up the medial border of the axilla
serratus anterior
what is the origin of serratus anterior?
upper 8-9 ribs
what is the insertion of serratus anterior?
medial margin of the scapula
what is the nerve that supplies serratus anterior?
long thoracic nerve
name the muscles that make up the posterior border of the axilla
teres major
what is the origin of teres major?
inferior angle of the scapula
what is the insertion of teres major?
lesser tubercle of the humerus
what is the nerve supply to teres major?
brachial plexus
which movements does teres major enable?
adduction and internal rotation of the arm
list the anterior superficial muscles of the forearm
pronator teres
palmaris longus
flexor carpi radialis
flexor carpi ulnaris
what is the origin of pronator teres?
common flexor tendon
what is the insertion of pronator teres?
lateral radius
what is the nerve supply to pronator teres?
median nerve
what is the arterial supply to pronator teres?
ulnar artery
radial artery
which movements does pronator teres enable?
pronation
flexion at the elbow
what is the origin of palmaris longus?
common flexor tendon
what is the insertion of palmaris longus?
palmar aponeurosis
what is the nerve and arterial supply to palmaris longus?
median nerve
ulnar artery
which movement does palmaris longus enable?
flexion of the wrist
what is the origin of flexor carpi radialis?
common flexor tendon
what is the insertion of flexor carpi radialis?
2nd and 3rd metacarpals
what is the nerve supply to flexor carpi radialis?
median nerve
what is the arterial supply to flexor carpi radialis?
radial artery
which movements does flexor carpi radialis enable?
flexion and abduction at the wrist
what is the origin of flexor carpi ulnaris?
common flexor tendon
what is the insertion of flexor carpi ulnaris?
pisiform
hamate
5th metacarpal
what is the nerve supply to flexor carpi ulnaris?
ulnar nerve
what is the arterial supply to flexor carpi ulnaris?
ulnar artery
name the anterior intermediate muscle of the forearm
flexor digitorum superficialis
what is the origin of flexor digitorum superficialis?
common flexor tendon
what is the insertion of flexor digitorum superficialis?
medial four fingers
what is the nerve supply to the flexor digitorum superficialis?
median nerve
what is the arterial supply to the flexor digitorum superficialis?
ulnar artery
list the anterior deep muscles of the forearm
flexor digitorum profundus
flexor pollicis longus
pronator quadratus
what is the origin of flexor digitorum profundus?
upper three quarters of ulna
what is the insertion of flexor digitorum profundus?
distal phalanges of fingers
what is the nerve supply to flexor digitorum profundus?
median nerve
which movements does flexor digitorum profundus enable?
flexion of the hand
flexion of the fingers
what is the origin of flexor pollicis longus?
middle 2/3 of the radius
what is the insertion of flexor pollicis longus?
distal phalanx of the thumb
what is the nerve supply to flexor pollicis longus?
median nerve
which movements does flexor pollicis longus enable?
flexion of the thumb
what is the origin of pronator quadratus?
anterior ulna
what is the insertion of pronator quadratus?
anterior radius
what is the nerve supply to pronator quadratus?
median nerve
what movements does pronator quadratus enable?
pronation
what is the main nerve supply to the anterior compartment of the forearm?
median nerve
list the groups of intrinsic muscles of the hand
thenar hypothenar lumbricals interossei palmaris brevis adductor pollicis
list the thenar muscles of the hand
opponens pollicis
abductor pollicis brevis
flexor pollicis brevis
what is the origin of opponens pollicis?
trapezium
flexor retinaculum
what is the insertion of opponens pollicis?
lateral aspect of thumb
what is the nerve supply to opponens pollicis?
median nerve
what is the arterial supply to opponens pollicis?
superficial palmar arch
which movement does opponens pollicis enable?
flexion at the CMJ of the thumb
aka opposition
what is the origin of abductor pollicis brevis?
scaphoid, trapezium and flexor retinaculum
what is the insertion of abductor pollicis brevis?
proximal phalanx of the thumb
what is the nerve supply to abductor pollicis brevis?
median nerve
what is the arterial supply to abductor pollicis brevis?
superficial palmar arch
which movements does abductor pollicis brevis enable?
abduction, opposition and extension of the thumb
what is the origin of flexor pollicis brevis?
trapezium and flexor retinaculum
what is the insertion of flexor pollicis brevis?
proximal phalanx of the thumb
what is the nerve supply to flexor pollicis brevis?
median nerve
what is the arterial supply to flexor pollicis brevis?
superficial palmar arch
what movements does flexor pollicis brevis enable?
flexion of the thumb
what is the main nerve supply to the thenar muscles?
median nerve
list the hypothenar muscles of the hand
opponens digiti minimi
abductor digiti minimi
flexor digiti minimi brevis