Term
| Abductor pollicis brevis: action |
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Definition
| Abducts and assists in opposition of thumb (o: Flexor retinaculum, tubercles of scaphoid and trapezium; i: Lateral side of base of proximal phalanx of thumb (1st digit)) |
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Term
| Abductor pollicis brevis: innervation |
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Definition
| Recurrent branch of median nerve (C8-T1) |
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Term
| Abductor pollicis brevis: blood supply |
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Definition
| Superficial palmar branch of radial artery |
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Term
| Flexor pollicis brevis: action |
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Definition
| Flexes proximal phalanx of thumb (o: Flexor retinaculum and trapezium; i: Lateral side of base of proximal phalanx of thumb) |
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Term
| Flexor pollicis brevis: innervation |
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Definition
| Recurrent branch of median nerve (C8-T1) for superficial head; ulnar nerve for deep head |
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Term
| Flexor pollicis brevis: blood supply |
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Definition
| Superficial palmar branch of radial artery |
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Term
| Opponens pollicis: action |
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Definition
| Draws 1st metacarpal forward and rotates it medially (o: Flexor retinaculum and trapezium; i: Lateral side of 1st metacarpal) |
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Term
| Opponens pollicis: innervation |
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Definition
| Recurrent branch of median nerve (C8-T1) |
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Term
| Opponens pollicis: blood supply |
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Definition
| Superficial palmar branch of radial artery |
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Term
| Adductor pollicis: action |
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Definition
| Adducts thumb (o: Oblique head-bases of second and third metacarpals capitate and adjacent bones; Transverse head-anterior surface of third metacarpal; i: Medial side of base of proximal phalanx of thumb) |
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Term
| Adductor pollicis: innervation |
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Definition
| Deep branch of ulnar nerve (C8-T1) |
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Term
| Adductor pollicis: blood supply |
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Definition
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Term
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Definition
| Deepens the hollow of the hand (o: Palmar aponeurosis; i: Skin of ulnar border of palm) |
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Term
| Palmaris brevis: innervation |
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Definition
| Superficial palmar branch of ulnar nerve (C8) |
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Term
| Palmaris brevis: blood supply |
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Definition
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Term
| Abductor digiti minimi (hand): action |
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Definition
| Abducts the little finger (fifth digit) (o: Pisiform bone, tendon of flexor carpi ulnaris; i: Medial side of base of proximal phalanx of little finger) |
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Term
| Abductor digiti minimi (hand): innervation |
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Definition
| Deep branch of ulnar nerve (C8-T1) |
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Term
| Abductor digiti minimi (hand): blood supply |
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Definition
| Deep palmar branch of ulnar artery |
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Term
| Flexor digiti minimi brevis (hand): action |
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Definition
| Flexes proximal phalanx of the little finger (o: Flexor retinaculum and hook of hamate bone; i: Medial side of base of proximal phalanx of little finger) |
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Term
| Flexor digiti minimi brevis (hand): innervation |
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Definition
| Deep branch of ulnar nerve (C8-T1) |
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|
Term
| Flexor digiti minimi brevis (hand): blood supply |
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Definition
| Deep palmar branch of ulnar artery |
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Term
| Opponens digiti minimi: action |
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Definition
| Draws fifth metacarpal anteriorly and rotates it to face thumb (o: Flexor retinaculum and hook of hamate bone; i: Medial side of fifth metacarpal) |
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Term
| Opponens digiti minimi: innervation |
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Definition
| Deep branch of ulnar nerve (C8-T1) |
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Term
| Opponens digiti minimi: blood supply |
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Definition
| Deep palmar branch of ulnar artery |
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Term
| Lumbricals 1 and 2: action |
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Definition
| Extends digits at interphalangeal joints and flexes metacarpophalangeal joints (o: Lateral two tendons of flexor digitorum profundus; i: Lateral sides of extensor expansion of digits 2 and 3) |
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Term
| Lumbricals 1 and 2: innervation |
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Definition
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Term
| Lumbricals 1 and 2: blood supply |
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Definition
| Superficial and deep palmar arches |
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Term
| Lumbricals 3 and 4: action |
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Definition
| Extends digits at interphalangeal joints and flexes metacarpophalangeal joints (o: Medial three tendons of flexor digitorum profundus; i: Lateral sides of extensor expansion of digits 4 and 5) |
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Term
| Lumbricals 3 and 4: innervation |
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Definition
| Deep branch of ulnar nerve (C8-T1) |
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Term
| Lumbricals 3 and 4: blood supply |
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Definition
| Superficial and deep palmar arches |
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Term
| Dorsal interossei: action |
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Definition
| Abducts digits from axial line of hand-third digit (o: Adjacent sides of two metacarpal bones; i: Base of proximal phalanx and extensor expansion of digits 2-4) |
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Term
| Dorsal interossei: innervation |
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Definition
| Deep branch of ulnar nerve (C8-T1) |
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Term
| Dorsal interossei: blood supply |
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Definition
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Term
| Palmar interossei: action |
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Definition
| Adducts digits toward axial line of hand-third digit (o: Palmar surfaces of metacarpals 2, 4, and 5; i: Bases of proximal phalanx and extensor expansion of digits 2, 4, and 5) |
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Term
| Palmar interossei: innervation |
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Definition
| Deep branch of ulnar nerve (C8-T1) |
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Term
| Palmar interossei: blood supply |
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Definition
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