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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
ID
53585
Card Set
flexors in arm
Description
flexor muscles in the arm
Updated
2010-12-10T17:37:46Z
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