Anterior Compartment of the Forearm Flashcards
Learn all muscle attachments and actions
What are the 4 superficial muscles of the forearm?
PFPF: Pronator Teres Flexor Carpi Radialis Palmaris Longus Flexor Carpi Ulnaris
Pronator Teres
origin, insertion, action
Origin - 2 heads, medial epicondyl of humerous and coronoid process of the ulna
Insertion - Middle of radius on lateral side
Action - pronation, elbow flexion
Flexor Carpi Radialis
origin, insertion, action
Origin - Medial epicondyle of humerus
Insertion - Base of 2nd metacarpal
Action - Radial deviation
Palmaris Longus
origin, insertion, action
Origin - Medial Epicodyle of humeus
Insertion- Distal flexor retinaculum and Palmer aponeurosis
Action - Wrist flexion tension of palmer aponeurosis
Flexor Carpi Ulnaris
origin, insertion, action
Origin - Medial epicondyle of humerus
Insertion - Pisiform, Hook of hamate and 5th metacarpal
Action - Ulna Deviation
What muscle(s) is in the intermediate layer of the anterior compartment of the forearm?
Flexor Digitorum Superficialis
Flexor Digitorum Superficialis
origin, insertion, action
Origin - 2 heads:
Humeroulna: medial epicondyle of humerus, coronoid process of ulna
Radial head: Proximal, anterior surface of radius
Insertion - Middle phalangeals 2-5
Action - Flexion of middle phalangeals 2-5, flexion of PIPs 2-5, Flexion of MCPs 2-5
What are the 3 deep muscles of the anterior forearm?
origin, insertion, action
FFP
Flexor Digitorum Profundus
Flexor Pollicis Longus
Pronator Quadratus
Flexor Digitorum Profundus
origin, insertion, action
O - 3/4 of ulna and adjacent interosseous membrane
I - Distal phalanges of digits 2-5
A - Flexes DIPs
Flexor Pollicis Longus
origin, insertion, action
O - Proximal 3/4 of radius and adajacent interosseous membrane
I - distal phalax of 1st digit
A - flexion of interphalangeal joint of 1st digit
Pronator Quadratus
origin, insertion, action
O - Anterior surface of distal ulna
I - Anterior surface of distal radius
A - Pronation of forearm
