flexors in arm

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retinacula

strong fascial bands that help tendons of muscles in hand stay close to bones
mainly all flexors are innervated by ____ nerve and extensors are innervated by _____ nerve

median, radial
what are the 4 superficial flexors?

pronator teres, flexor carpi radialis, flexor carpi ulnaris and palmaris longus
what is the intermediate flexor?

flexor digitorum superficialis
what are the 3 deep flexors?

flexor digitorum profundus, flexor pollicus longus and pronator quadratus
Pronator Teres
- o:medial epicondyle of humerus
- i:lateral surface radius
- a:flex and pronate
- inn:median nerve
for all the forearm flexors what is the general origin insertion action and innervation..?
- O: humerus radius and ulna
- I:carpals, metacarpals and phalanges
- Inn:median and some ulnar
- A: flex the hand and digits
Flexor carpi radialis
- o: medial epicondyle humerus
- i: base 2nd and 3rd metacarpals
- inn: median nerve
- A: flex and adduct at wrist
palmaris longus
- o:Medial epicondyle ofhumerus
- i:flexor retinaculum and palmar aponeurosis
- inn:median
- a:flex
flexor carpi ulnaris
- o: olecranon ulna
- i: pisiform hook of hamate and 5th metacarpal
- inn: ulnar
- a: flex and abduct hand
Flexor digitorum superficialis
- O: Medial epicondyle of humerus, ulna, radius
- I: Middle phalanges of medial 4 digits
- A: Flexes proximalinter‐phalangeal (IP)joints and metacarpophalangealjoints(MP)
- Inn: median nerve
Flexor digitorum profundus
- o:ulna and interosseous membrane
- i: distal phalanges 2-5
- inn: flex distal interphalangeal joints
- a: median and ulnar
Flexor Pollicis Longus
- o: radius and interosseous membrane
- i: distal phalnx of thumb
- a: flex thumb
- inn: median nerve
Pronator quadratus
- o: distal portion of shaft of ulna
- i: distal portion shaft of radius
- a: pronate forearm

Author

Naheer

53585

Card Set

flexors in arm

Description

flexor muscles in the arm

Updated

2010-12-10T17:37:46Z

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