Anterior Compartment of Forearm Muscles Flashcards
what are the 4 superficial muscles of the anterior compartment of the forearm
- pronator teres
- flexor carpi radialis
- flexor carpi ulnaris
- palmaris longus
what is the intermediate muscle of the anterior compartment of the forearm
Flexor Digitorum Superficials
what are the 3 deep layers of the anterior compartment of the forearm
- flexor digitorum profundus
- flexor pollicis longus
- pronator quadratus
what are the attachments of the pronator teres
proximal: medial epicodlye of humerus
distal: midlateral shaft of radius
what is the torque of the pronator teres
pronator and flexor of the forearm
what is the innervation and blood supply of the pronator teres
median nerve (C6 & C7)
ulnar and anterior recurrent ulnar artery
what are the attachments of the flexor carpi radialis
proximal: medial epicondyle of humerus
distal: base of 2nd metacarpal
what is the torque of the flexor carpi radialis
flexor and abductor of the hand
what is the innervation and blood supply of the flexor carpi radialis
median nerve (C6 & C7)
ulnar artery
what are the attachments of the flexor carpi ulnaris
proximal: medial epicondyle of humerus
distal: pisiform, hamate, and metacarpal 5
what is the torque of the flexor carpi ulnaris
flexor of wrist & adductor of hand
what is the innervation and blood supply of the flexor carpi ulnaris
ulnar nerve
ulnar artery
what are the attachments of the palmaris longus
proximal: medial epicondyle of humerus
distal: palmer aponeurosis & bases of proximal phalanx in digits 2-5
what is the torque of the palmaris longus
flexor of hand & tightens palmar aponeurosis
what is the innervation and blood supply of the palmaris longus
median nerve (C7 & C8)
unlar artery
what are the attachments of flexor digitorum superficialis
proximal: medial epicondyle humerus, coronoid process, upper anterior radius
distal: middle phalanges 2-5
what is the torque of the flexor digitorum superficialis
flexor middle & proximal phalanges
what are the innervations and blood supply to the flexor digitorum superficials
median nerve (C7, C8, T1)
ulnar artery
what are the attachments of the flexor digitorum profundus
proximal (2 heads):
- medial head: anterior surface of ulna
- lateral head: interosseous membrane
distal: base of distal phalanges, digits 2-5
what is the torque of the flexor digitorum profundus
flexor at DIP, PIP, and MP joints
what are the innervations of the flexor digitorum profundus
2 nerves:
- Ulnar Nerve (C8 & T1): medial head digits 4 & 5
- Median Nerve (C8 &T1): lateral head digits 2 & 3
what are the attachments of the flexor pollicis longus
proximal: anterior surface of radius & interosseous membrane
distal: base of distal phalanx of thumb
what is the torque of the flexor pollicis longus
flex thumb
what is the innervation and blood supply of the flexor pollicis longus
anterior interosseous branch of median nerve (C8-T1)
anterior interosseous artery
what are the attachments of the pronator quadratus
proximal: distal anterior ulna
distal: distal anterior radius
what is the torque of the pronator quadratus
pronator forearm
what Is the innervation and blood supply to the pronator quadratus
anterior interosseous branch of median nerve
anterior interosseous artery
