4. Thenar
At base of thumb form bulge called T
henar eminence
Opponence pollicis
Tubercle of trapezium and flexor retinaculam
Base of metacarpal 1st
Opposes the thumb by medialy rotating and fl
exing metacarpal on trapezium
Median nerve
5. • Abductor pollicis brevis
• Tubercle of scaphoid and trapezi
um
• Letral side of proximal phalanx
of thum
• Abduct the thumb
• Median nerve
6. •Flexor pollicis brevis
• Tubercle of trapezium and flexor
retinaculam
• Base of proximal phalanx of thu
mb
• Flexetion the thumb at MCP join
t
• Median nerve
8. • Opponence digiti minimi
• Hook of halmate and flexor ret
inaculam
• Medial side of metacarpal 5th
• Rotate the little finger at metac
arpal opposite to thumb
• Ulnar nerve
9. •Abductor digiti minimi
• Pisiform and tendon of flexor carpi
ulnaris
• Base of proximal phalanx of little f
inger
• Abduct the little finger
• Ulnar nerve
10. •Flexor digiti minimi
• Hook of halmate and flexor retinacu
lam
• Base of proximal phalanx of little fi
nger
• Flex the little finger at MCP joint
• Ulnar nerve
12. •Four muscles
• Tendon of flexor digitorum profundus
• Move Dorsal and letrally on extensor ho
od of each finger
• Flex the fingers at MCP and extend at IP
joints
• Letral two by Median and medial two b
y Ulnar nerve
14. •Dorsal Interossei
• Four muscles from letral and medi
al surface of each metacarpal
• Extensor hood and proximal phala
nx of each finger
• Abduct the fingers at MCP joint
• Ulnar nerve
• Palmar Interossei same origin insertion
16. •Palmaris brevis
• Palmar aponurosis and Flexor retina
culam
Skin of medial side of hand
Wrinkles the hypothenar eminence to
deepend the curvature to improove gri
p
Ulnar nerve
17. •Adductor pollicis
• One head from metacarpal 3rd and o
ther head from capitate and adjacent
area of metacarpal 2nd and 3rd
• Proximal phalanx of thumb
• Adduct the thumb
• Ulnar nerve
