Fichas
Muscles
Fichas del conjunto (10)
- 1Abductor Pollicis BrevisOrigin: Tubercles of scaphoid and
trapezium bones, flexor retinacul. of hand.
Insertion: Lateral aspect of base of
proximal phalanx of thumb.
Action: Abducts thumb at its
carpometacarpal joint.
Innervation: Recurrent branch of median
nerve (C8-T1). - 2Opponens PollicisOrigin: Tubercle of trapezium bone and
flexor retinaculum of hand.
Insertion: Anterolateral aspect of body of
first metacarpal bone.
Action: Opposes thumb towards other fingers.
Innervation: Recurrent branch of median nerve (C8-T1). - 3Flexor Pollicis BrevisOrigin: Tubercle of trapezium bone, palmar
aspects of capitate and trapezoid bones,
flexor retinaculum of hand.
Insertion: Lateral aspect of base of
proximal phalanx of thumb.
Action: Flexes thumb.
Innervation: Superficial head: recurrent
branch of median nerve (C8-T1); Deep
head: deep branch of ulnar nerve (C8-T1). - 4Lumbricals of Hand (1-4)Origin: Tendons of flexor digit. profundus.
Insertion: Lateral aspect of extensor
expansion of fingers 2-5.
Action: Simultaneously flexes
metacarpophalangeal joint and extends
interphalangeal joints of fingers 2-5.
Innervation: 1st and 2nd: Innervation: Common palmar digital branches of median nerve (C8-T1). 3rd and 4th: Deep branch of ulnar nerve (C8-T1). - 5Adductor Pollicis Oblique + Transverse HeadOrigin: OH: Palm aspects of capitate bone
and bases of second and third metacarpal.
TH: Palmar aspect of body of third metacarpal bone.
Insertion: Medial aspect of base of proximal phalanx of thumb.
Action: Adducts thumb at its carpometacarpal joint.
Innervation: Deep branch of ulnar nerve (C8-T1). - 6Abductor Digiti MinimiOrigin: Pisiform bone and tendon of flexor carpi ulnaris.
Insertion: Medial aspect of base of proximal phalanx of little finger.
Action: Abducts little finger at its metacarpophalangeal joint.
Innervation: Deep branch of ulnar nerve (C8-T1) - 7Flexor Digiti MinimiOrigin: Hook of hamate bone and flexor
retinaculum of hand.
Insertion: Medial aspect of base of proximal phalanx of little finger.
Action: Flexes little finger at its
metacarpophalangeal joint.
Innervation: Deep branch of ulnar nerve (C8-T1). - 8Opponens Digiti MinimiOrigin: Hook of hamate bone and flexor
retinaculum of hand.
Insertion: Medial aspect of fifth metacarpal
Action: Opposes little finger towards thumb.
Innervation: Deep branch of ulnar nerve (C8-T1). - 9Palmar Interossei 1-3Origin: Sides of each metacarpal facing the mid-axis (metacarpal 3) of the hand
Insertion: Extensor expansion of proximal phalanx fingers 2-4 on side opposite
mid-axis of hand (not on finger 3) .
Action: Adducts ring finger at its metacarpophalangeal joint;
simultaneously flexes metacarpophalangeal joint and extends interphalangeal joints
of fingers 2-5.
Innervation: Deep branch of ulnar nerve (C8-T1). - 10Dorsal Interossei of Hand 1-4Origin: Sides of metacarpals
Insertion: Base of proximal phalanx and extensor expansion of fingers 2-4 on side
opposite mid-axis of hand but on BOTH sides of finger 3.
Action: Medially abducts fingers 2-5 at the metacarpophalangeal joint;
simultaneously flexes metacarpophalangeal joint and extends
interphalangeal joints of fingers 2-5.
Innervation: Deep branch of ulnar nerve (C8-T1).
Información
- Descripción
- Bachelor Degree (Hand/Thumb) Advanced Functional Anatomy Fichas sobre Muscles, creado por Grace Gee el 08/03/2022.
- Creado por
- Grace Gee
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