Muscles of thenar emminence
Abductor pollicus brevis
Opponens pollicis
Flexor pollis brevis
Muscles of hypothenar emminence
Flexor digiti mini
Abductor digiti minimi
Oppons digit minimi
Adb Pollicus brevis
O: scaphoid, trapezium
I: prox. phalanx of thumb
N: median
A: abducts thumb
Opponens Pollicis
O: trapezium
I: 1st mc
N: median
A: medially rotates thumb into opposition
Flexor pollicus brevis
O: trapezium
I: prox. 1st phalanx
N: median
A: flexs thumb on mcpj
Add Pollicis
O: 2 & 3rd mc, capitate
I: prox. phalanx of thumb
N: ulnar
A: Adduct thumb
Which is the strongest muscle in the hand?
Add. Pollicis
Flexor Digiti Minimi
O: hook of hammate
I: prox. phalanx
N: ulnar
A: flexion D5 at mcpj
Abd. Digiti Minimi
O: pisiform tendon of fcu
I: proximal phalanx of D5
N: ulnar
A: abduct pinkie
Opponens Digiti Minimi
O: hook of hamate
I: 5th mc
N: ulnar
A: rotates 5th mc in opposition
Lumbricals
O: tendons of fdp
I: dorsal hood of D2-D5
N: median: D2-D3, ulnar: D4-D5
A: flexs one joint and extends 2 joints
Dorsal Interossei
O: Adjacent side of mc
I: base of prox. phalanyx D2-D4
N: ulnar
A: abduction D2, D3, D4
Palmar Interossei
O: D2, D4, D5
I: base of side of mc and extensor hoods D2-D4
N: ulnar
A: adductors fingers
