Ch3 - wrist and elbow Flashcards
(26 cards)
MUSCLES IN THE FOREARM
Extensor Carpi Ulnaris
Extensor Carpi Radialis Longus
Exensor Carpi Radialis Brevis
Flexor Carpi Ulnaris
Flexor Carpi Radialis
Extensor Digitorum
Palmaris Longus
Flexor Digitorm Superficialis
Flexor Pollicis Longus
Extensor Pollicis Longus
Opponens Pollicis
Opponens Digiti Minimi
Biceps brachii
brachialis
pronator teres
brachioradialis
Extensor Carpi Ulnaris
Origin - common extensor tendon from the lateral epicondyle of the humerus
Insertion - base of the fifth metacarpal
Action - extend and adduct the wrist
Nerve - Radial C6.7.8
Extensor Carpi Radialis Longus
Origin - Distal one third of the lateral supracondylar ridge of humerus
Insertion - Base of second metacarpal
Action - Extend and abduct the wrist. Assit to flex the elbow
Nerve - Radial C5,6,7,8
Extensor Carpi Radialis Brevis
Origin - Common extensor tendon from the lateral epicondyle of humerus
Insertion - Base of third metacarpal
Action - Extend and abduct the wrist. Assist to flex the helbow
Nerve - Radial C6,7,8
Flexor Carpi Ulnaris
Origin: Humeral head; Common flexor tendon from medial epicondyle of humerus
Ulnarhead: posterior surface of proximal two thirds of ulna
Insertion: pisiform, hook of the hamate, and base of fifth metacarpal
Action: Flex and adduct the wrist, assist to flex the elbow
Nerve: Ulnar C7,8,T1
Flexor Carpi Radialis
Origin - common flexor tendon from medial epicondyle of humerus
Insertion: Bases of second and third metacarpals
Action: Flex and abduct the wrist, may assist to flex the elbow
Nerve:L Media C6,7,8
Extensor Digitorum
Origin: common extensor tendon from the lateral epicondyle of humerus
Insertion: bases of middle and distal phalanges of second through fifth fingers
Action: Extend the second through fifth fingers (metacarpophalangeal and interphalangeal joints)
Nerve: Radial C6,7,8
Palmaris longus
Origin - comon flexor tendon from medial epicondyle of humerus
Insertion - flexor retinaculum and palmar aponeurosis
Action - tense the palmar fascia; flex the wrist, may assist to flex the elbow
Median c6,7,8,t1
Flexor digitorum superficials
origin: common flexor tendon from medial epicondyle of humerus, ulnar collateral ligament, coronoid process of ulna, interosseous membran and proximal shaft of the radas
insertion: sides of middle phalanges of second through fifth fingers
action: flex the esecond through fifth fingers, flex the wrist
nerve: median c7,8,t1
Flexor Pollicis Longus
Origin - anterior surface of radius and interosseous membrane
Insertion: base of distal phalanx and thumb
Action: flex the thumb, assist to flex the wrist
nerve: media c6,7,8,t1
Opponens Pollicis
Origin: flexor retinaculum and tubercle of the trapezium
insertion: entire length of first metacarpal bone, radial surface
Action: opposition of the thumb at the carpometacarpal joint
nerve: median c6,7,8,t1
Extensor Pollicis Longus
Origin: posterior surface of ulna and interosseous membrane
Insertion: base of distal phalanx of thumb
Action: Extend the thumb, abduct the wrist
nerve: radial c6,7,8
Opponens digit minimi
origin: hook of hamate and flexor retinaculum
insertion: shaft of fifth metacarpal, ulnar surface
action: opposition of the fifth finger at the carpometacarpal joint
nerve: ulnar c7,8,t1
Bones of the forearm and hand
Humerus
Radius
Ulna
Carpals 8x
Metacarpals 5x
phalanges 14x
Joints of the forearm and hand
Humeroradial joint
Humeroulnar joint
proximal radioulnar joint
distal radioulnar joint
radiocarpal joint
midcarpal joints
carpometacarpal joints
intermetacarpal joints
metacarpophalnageal joints
proximal interphalangeal joints
distal interphalangeal joints
Boney Landmarks of the distal Humerus
Capitulum
Radial Fossa
lateral epicondyle
lateral condyle
lateral supracondylar ridge
medial supracondylar ridge
medial condyle
medial epicondyle
coronoid fossa
trochlea
groove for ulnar nerve
olecranon fossa
Boney landmarks of proximal ulna
trochlea notch
coronoid process
radial notch of ulna
ulnar tuberosity
supinator crest
olecranon process
boney land marks of proximal radius
head of radius
neck of radius
radial tuberosity
boney landmarks of distal ulna
head of ulna
styloid process of ulna
boney landmarks of distal radius
listers tubercle
styloid process of radius
Bones of the carpals
Scaphoid
Lunate
Triquetrum
Pisiform
Trapezium
Trapezoid
Capitate
Hamate
Hook of hamate
muscles that act primarily at the elbow
brachialis
brachioradialis
muscles that move the wrist and or fingers
Flexor carpi radialis
Palmaris longus
Flexor carpi ulna’s
Flexor digitorum superficialis
Flexor digtorum profundus
Extensor carpi radialis longus
Extensor carpi radialis brevus
Extensor carpi ulnaris
Extensor digitorum
muslces that create pivoting action between radius and ulna
pronator teres
pronator quadratus
supinator
