Muscles of the Hand Flashcards
Intrinsic muscle compartments of the hand?
Thenar Hypothenar Adductor Central (extrinsic tendons and lumbricals) Interosseus
Innervation of Thenar Muscles?
Recurrent Branch of the Median Nerve (C8-T1)
Function of Opponens Pollicis?
Medially rotates the thumb.
Deep to other thenar muscles.
Origin of Opponens Pollicis?
Flexor Retinaculum
Trapezium Tubercle
Insertion of Opponens Pollicis?
Lateral margin of Metacarpal 1
Function of Abductor Pollicis Brevis
Abduction at the Metacarpo-phalangeal joint
Origin of Abductor Pollicis Brevis
Flexor Retinaculum
Scaphoid/Trapezium Tubercles
Insertion of Abductor Pollicis Brevis
Proximal Phalanx
Extensor Hood
Function of Flexor Pollicis Brevis
Flexion at the Metacarpo-phalangeal joint
Origin of Flexor Pollicis Brevis
Flexor Retinaculum
Trapezium Tubercle
Insertion of Flexor Pollicis Brevis
Proximal Phalanx
Innervation of Hypothenar muscles
Deep Branch of Ulnar Nerve (C8-T1)
Function of Opponens Digiti Minimi
Lateral Rotation of 5th Metacarpal
Origin of Opponens Digiti Minimi
Flexor Retinaculum
Hook of Hamate
Insertion of Opponens Digiti Minimi
Medial aspect of Metacarpal 5
Function of Abductor Digiti Minimi
Abduction at Metacarpo-phalangeal joint
Origin of Abductor Digiti Minimi
Pisiform bone and Pisohamate Ligament
Flexor Carpi Ulnaris ligament
Insertion of Abductor Digiti Minimi
Proxmial Phalanx of Digit 5