cueFlash

Glossary of Anatomy Muscles 325-350

Start Studying! Add Cards ↓

Midpalmar origin and insertion
origin: Origin; insertion: Insertion
Lumbricals action
Flex fingers at metacarpophalangeal joints but extend fingers at interphalangeal joints
Lumbricals innervation
Median nerve (lateral 2); Ulnar nerve (medial 2)
Opponens Digiti Minimi origin and insertion
origin: Hamate bone and flexor retinaculum; insertion: Most of length of lateral side of metacarpal 5
Midpalmar action
Action
Midpalmar innervation
Nerve
Flexor Digiti Minimi Brevis origin and insertion
origin: Hamate bone and flexor retinaculum; insertion: Medial side of proximal phalanx of little finger
Opponens Digiti Minimi action
Helps in opposition: brings metacarpal 5 toward thumb to cup the hand
Opponens Digiti Minimi innervation
Ulnar nerve
Abductor Digiti Minimi origin and insertion
origin: Pisiform bone; insertion: Medial side of proximal phalanx of little finger
Flexor Digiti Minimi Brevis action
Flexes little finger at metacarpophalangeal joint
Flexor Digiti Minimi Brevis innervation
Ulnar nerve
Hypothenar origin and insertion
origin: Origin; insertion: Insertion
Abductor Digiti Minimi action
Abducts (and flexes) little finger at metacarpophalangeal joint
Abductor Digiti Minimi innervation
Ulnar nerve
Adductor Pollicis origin and insertion
origin: Bases of metacarpals 2-4; front of metacarpal 3; insertion: Medial side of base of proximal phalanx of thumb
Hypothenar action
Action
Hypothenar innervation
Nerve
Opponens Pollicis origin and insertion
origin: Flexor retinaculum and nearby carpals; insertion: Whole anterior side of metacarpal 1
Adductor Pollicis action
Adducts thumb
Adductor Pollicis innervation
Ulnar nerve
Flexor Pollicis Brevis origin and insertion
origin: Flexor retinaculum and nearby carpals; insertion: Lateral side of base of proximal phalanx of thumb
Opponens Pollicis action
Opposition: moves thumb to touch tip of little finger
Opponens Pollicis innervation
Median nerve
Abductor Pollicis Brevis origin and insertion
origin: Flexor retinaculum; insertion: Lateral base of thumb’s proximal phalanx

Add Cards

You must Login or Register to add cards