Hand Muscles Flashcards
Muscles of the thenar eminence that are innervated by the median nerve
Opponents pollicis muscle
Flexor pollicis brevis muscle
Abductor pollicis brevis muscle
What nerve innovates the dorsal interossei and
Palmer interossei muscles
Ulnar nerve
Which action does the palmer interossei muscles do at the metacarpophalangeal joint
Adduction
What is the insertion of the lumbrical muscles of the hand
Extensor expansions of the 2-5 fingers
What nerve innovates the adductor pollicis muscles?
Ulnar nerve
What are the origins of the abductor pollicis brevis muscle
Scaphoid
Flexor retinaculum of the wrist
Trapezium
What nerve supplies the lumbrical muscles of the hand
Ulnar and median nerves
Which nerve innovates the flexor pollicis brevis
Superficial head- median nerve
Deep head- ulnar nerve
What are the muscular borders of the anatomical snuffbox
Extensor pollicis longus
Extensor pollicis brevis
Abductor pollicis longus
What is inside the carpal tunnel
4 flexor digitorum superficialis tendons
4 flexor digitorum profundus tendons
1 flexor pollicis longus tendon
Median nerve
3 common sesamoid bones in the hand
Pisiform
In the tendon of flexor pollicis brevis
In the tendon of adductor pollicis
What are the thenar muscles
Abductor pollicis brevis
Flexor pollicis brevis
Opponens pollicis
What muscles is sometimes included in the thenar muscles
Adductor pollicis
What are the hypothenar muscles
Opponens digiti minimi
Flexor digiti minimi
Abductor digiti minimi
Palmaris brevis
Hypothenar muscles
Flexor digiti minimi
Abductor digiti minimi
Opponens digiti minimi
