Anatomy of the hand and wrist Flashcards
Medial epicondyle is often called a?
common flexor origin
Brachioradialus is a?
lateral muscle
Pronator teres crosses the elbow joint?
anteriorly
- it is a common flexor
flexors of the wrist are
medial - flexor - carpi ulnaris
flexor - carpe-radialis
The brachioradialus supplied by?
radial nerve
flexor with radial supply
muscles attached at lateral epicondyle?
extensor carpeulnaris
extensor carperadialis and brevis
palmaris longus attaches in the
palmar fascia
Anterior - intermediate muscles
flexor
Anterior - what lies below intermediate flexors ?
2 Deep flexors
What lies below the deep flexors?
intermediate flexors
flexor digitorum superfacialis - what does it do? (4)
muscle attaches at the middle fallax
elbow flexor
flexor of metocarpophalangeal phalangeal joints
- flexes the wrist
- proximal phalangeal joint
The thumb has 3 bones
2 phalanges and 1 metacarpal
FP (FDP) can flex the?
flexor digitorum profundus
wrist
meta phalangeal
prox intra-phlanageal
distal phalangeal
muscle in the inter-phalangeal area of thumb?
Flexor pollicis longus
shared space of muscles in wrist/ hand?
carpal tunnel
flexor retenaculum
posterior forearm muscles ?
extensor digitorum
every movement of the thumb is at a ?
right angle to fingers
thumb lifted to air (other movements)
up - abduction
down - adduction
side - away - extension
across the palm - flexion
Anatomical snuff box
extension of the thumb
between tendons
Anoconeus muscle at?
top of forearm, below elbow joint
Extensor pollicis brevis and longus are the?
chief boundaries of the stuff box
seen best when thumb is in extension
muscle that abducts?
pollicis longus
Extensor muscles called?
extensor indicis
line of the hand?
axial line
Moving fingers apart
ABdcution
pulling 2,4th and 5th digit away from the 3rd
thumb pushed up in the air
Pushing digits together ?
adduction
pushing digits back to the midline
intrinsic muscles of the parts of the hand - what surface of hand?
dorsal
tendons lie above
Palmar (Interossei) muscles are?
ADductor -deep
Dorsal (Interossei) muscles are?
ABductors - deeper
Palmar (Interossei) - what happens when they contract - adduction of what digits?
there are 3
muscle drawn towards axial plane
2,4 and 5
Dorsal (Interossei) (2)
2 going to the middle digit
abducts the 2nd digit AWAY FROM LINE
2nd - abducts middle finger towards thumb
3rd - middle towards ring finger
4th - 4th digit to 5th
Interossei muscles supplied by?
ulnar nerve
