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Anatomy UE

Opponens pollicus - Palmar Interossei

QuestionAnswer
0pponens Pollicis PA Flexor retinaculum and tubercles of scaphoid and trapezium.
0pponens Pollicis DA Lateral side of 1st metacarpal.
0pponens Pollicis A Opposition of 1st digit.
0pponens Pollicis N Median (recurrent branch) (C8, T1).
Abductor Pollicis Brevis PA Flexor retinaculum and tubercles of scaphoid and trapezium.
Abductor Pollicis Brevis DA Lateral side of base of the proximal phalanx of 1st digit.
Abductor Pollicis Brevis A CMC abduction and opposition of 1st digit.
Abductor Pollicis Brevis N Median (recurrent branch) (C8, T1).
Flexor Pollicis Brevis PA Flexor retinaculum and tubercles of scaphoid and trapezium.
Flexor Pollicis Brevis DA Lateral side of base of proximal phalanx of 1st digit.
Flexor Pollicis Brevis A Superficial Head = MP flexion of 1st digit. Deep Head = CMC adduction 1st digit.
Flexor Pollicis Brevis N Superficial Head = Median (recurrent branch) (C8, T1). Deep Head = Ulnar (deep branch) (C8, T1).
Adductor Pollicus PA Oblique head = base of 2nd and 3rd metacarpals, capitate, and adjacent carpals. Transverse head = anterior surface of shaft of 3rd metacarpal.
Adductor Pollicus DA Medial side of base of the proximal phalanx of 1st digit.
Adductor Pollicus A Adduction of 1st digit.
Adductor Pollicus N Ulnar (deep branch) (C8, T1).
Abductor Digiti Minimi PA Pisiform.
Abductor Digiti Minimi DA Medial side of base of proximal phalanx of 5th digit.
Abductor Digiti Minimi A CMC abduction and MP flexion of 5th digit.
Abductor Digiti Minimi N Ulnar (deep branch) (C8, T1).
Flexor Digiti Minimi Brevis PA Hook of hamate and flexor retinaculum.
Flexor Digiti Minimi Brevis DA Medial side of base of proximal phalanx of 5th digit.
Flexor Digiti Minimi Brevis A MP flexion of 5th digit.
Flexor Digiti Minimi Brevis N Ulnar (deep branch) (C8, T1).
0pponens Digiti PA Hook of hamate and flexor retinaculum.
0pponens Digiti DA Medial border of 5th metacarpal.
0pponens Digiti A Opposition of 5th digit.
0pponens Digiti N Ulnar (deep branch) (C8, T1).
Lumbricals PA Tendons of flexor digitorum profundus.
Lumbricals DA Lateral sides of extensor expansion of 2nd – 5th digits.
Lumbricals A MP flexion, DIP, PIP extension of 2nd – 5th digits.
Lumbricals N Radial 2 digits = Median (C8, T1). Ulnar 2 digits = Ulnar (deep branch) (C8, T1).
Dorsal Interossei (1-4) PA Adjacent sides of 2 metacarpals. (bipennate)
Dorsal Interossei (1-4) DA Base of proximal phalanx and extensor expansions and of digits 2-4. 1 & 2 = radial side of digits 2 & 3. 3 & 4 = ulnar side of digits 3 & 4.
Dorsal Interossei (1-4) A Abduction of digits 2,3,4 from axial line and assists lumbricals with MP flexion, PIP, DIP extension.
Dorsal Interossei (1-4) N Ulnar (deep branch) (C8, T1).
Palmar Interossei (1-3) PA Palmar surface of 2nd, 4th, and 5th metacarpals. (unipennate)
Palmar Interossei (1-3) DA Base of proximal phalanges; extensor expansion of 2nd, 4th, 5th digits. 1st into ulnar side of 2nd digit. 2nd and 3rd into radial side of 4th and 5th digits.
Palmar Interossei (1-3) A Adduction of digits 2, 4, and 5, toward axial line, assists lumbricals in MP flexion. Extension of PIP, DIP and extensor expansions of 2nd-4th digits.
Palmar Interossei (1-3) N Ulnar (deep branch) (C8, T1).
Created by: txst fall 2009
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