PHED-1506EL Lecture Notes - Lecture 5: Flexor Pollicis Muscle, Pronator Teres Muscle, Interosseous Membrane
12 Jun 2018
School
Department
Course
Professor
Muscle
Origin
Insertion
Action
Pronator Teres
Humerus
Coronoid Process of
Ulna
Lateral Radius
Pronate forearm
Flexor Carpi Radialis
Humerus- medial
epicondyle
Base of 2nd and 3rd
metacarpals
Flexor of wrist,
abduct hand
Palmaris Longus
Humerus-medial
epicondyle
Palmar fascia
Weak wrist flexor
Flexor Carpi Ulnaris
Humerus- medial
epicondyle
Olecranon process
Pisiform and hamate
bones, base the 5th
metacarpal
Powerful flexor of
wrist, adductor of
hand
Flexor Digitorum
Superficialis
Humerus- medial
epicondyle,
Coronoid process of
ulna
Shaft of radius
Four tendons into
middle phalange of
fingers 2-5
Flexes wrist
Flexor Pollicis Longus
Radius- anterior
surface
Interosseous
membrane
Distal phalanx of
thumb
Flexes thumb
Flexor Digitorum
Profundus
Ulna- Anteromedial
surface
Coronoid surface
Interosseous
membrane
Four tendons into
distal phalanges of
2nd- 5th fingers
Flexes
interphalangeal joints
Pronator Quadratus
Ulnar Shaft- distal
portion
Distal surface of
anterior radius
Prime mover of
forearm pronation
Extensor Carpi
Radialis Longus
Humerus- lateral
epicondyle
Base of 2nd
metacarpal
Extends and abducts
wrist
Extensor Carpi
Radialis Brevis
Humerus- lateral
epicondyle
Base of 3rd
metacarpal
Extends wrist
Extensor Digitorum
Humerus
Four tendons into
extensor expansions
and distal phalanges
of fingers 2-5
Prime mover of finger
extension
Extensor Carpi
Ulnaris
Humerus- lateral
epicondyle and ulna
Base of 5th
metacarpal
Extends wrist and
adducts wrist
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