PHED-1506EL Lecture Notes - Lecture 7: Flexor Pollicis Longus Muscle, Extensor Carpi Muscle, Extensor Digitorum Muscle
12 Jun 2018
School
Department
Course
Professor
Muscle
Action
Origin
Insertion
Pronator Teres
Pronates forearm
Medial epicondyle of
humerus; coronoid
process of ulna
By common tendon
into lateral radius,
midshaft
Flexor Carpi Radialis
Powerful flexor and
abductor of hand
Medial epicondyle of
humerus
Base of second and
third metacarpals;
insertion tendon
easily seen and
provides guide to
position of radial
artery at wrist
Palmaris Longus
Tenses skin and
fascia of palm during
hand movements
Medial epicondyle of
humerus
Palmar aponeurosis
Flexor carpi ulnaris
Powerful flexor and
adductor of hand
Medial epicondyle of
humerus; olecranon
and posterior surface
of ulna
Pisiform and hamate
bones and base of
fifth metacarpal
Flexor digitorum
superficialis
Flexes wrist and
middle phalanges of
second to fifth fingers
Medial epicondyle of
humerus, coronoid
process of ulna; shaft
of radius
By four tendons into
middle into middle
phalanges of second
to fifth fingers
Flexor pollicis longus
Flexes distal phalanx
of thumb
Anterior surface of
radius and
interosseous
membrane
Distal phalanx of
thumb
Flexor digitorum
profundus
Flexes distal
interphalangeal joints
Coronoid process,
anteromedial surface
of ulna and
interosseous
membrane
By four tendons into
distal phalanges of
second to fifth fingers
Pronator quadratus
Prime mover of
forearm pronation
Distal portion of
anterior ulnar shaft
Distal surface of
anterior radius
Extensor carpi
radialis longus
Extends and abducts
hand
Lateral supracondylar
ridge of humerus
Base of second
metacarpal
Extensor carpi
radialis brevis
Extends and abducts
hand
Lateral epicondyle of
humerus
Base of third
metacarpal
Extensor digitorum
Prime mover of finger
extension
Lateral epicondyle of
humerus
By four tendons into
extensors expansions
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Document Summary
Medial epicondyle of humerus; coronoid process of ulna. Flexor carpi radialis powerful flexor and abductor of hand. Base of second and third metacarpals; insertion tendon easily seen and provides guide to position of radial artery at wrist. Tenses skin and fascia of palm during hand movements. Medial epicondyle of humerus; olecranon and posterior surface of ulna. Pisiform and hamate bones and base of fifth metacarpal. Flexes wrist and middle phalanges of second to fifth fingers. Medial epicondyle of humerus, coronoid process of ulna; shaft of radius. By four tendons into middle into middle phalanges of second to fifth fingers. Flexor pollicis longus flexes distal phalanx of thumb. Coronoid process, anteromedial surface of ulna and interosseous membrane. By four tendons into distal phalanges of second to fifth fingers. By four tendons into extensors expansions and distal phalanges of second to fifth fingers. Lateral epicondyle of humerus and posterior border of ulna. Posterior surface of radius and ulna; interosseous membrane.
