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Exam 2 gross- Upper limb > Metacarpal Muscles > Flashcards

Metacarpal Muscles Flashcards

1
Q

Insertion of 1st lumbrical?

A

2nd digit (dde)

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2
Q

Insertion of 2nd lumbrical?

A

3rd digit (dde)

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3
Q

Origin of 1st and 2nd lumbrical?

A

Tendons of flexor digitorum profundus (radial sides)

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4
Q

Innervation of 1st and 2nd lumbricals?

A

Common palmar digital n.

C8, T1

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5
Q

Action of lumbricals?

A

2nd to 5th digits….. MCP joints: flexion; Proximal and distal IP joints: extension

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6
Q

Origin of 3rd and 4th lumbricals?

A

Tendons of flexor digitorum profundus (bipennate from medial and lateral sides)

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7
Q

Insertion of 3rd lumbrical?

A

4th digit (dde)

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8
Q

Insertion of 4th lumbrical?

A

5th digit (dde)

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9
Q

Origin of 1st dorsal interossei?

A

1st and 2nd metacarpal (adjacent sides, two heads)

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10
Q

Insertion of 1st dorsal interossei?

A 
2nd digit (dde)
2nd proximal phalanx (radial side)
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11
Q

Innervation fo dorsal interossei and palmar interossei?

A

Deep Ulnar n. (C8, T1)

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12
Q

Action of dorsal interossei?

A

2nd to 4th digits…. MCP joints: flexion; Proximal and distal IP joints: extension and abduction from 3rd digit

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13
Q

Origin of 2nd dorsal interossei?

A

2nd and 3rd metacarpals (adjacent sides, two heads)

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14
Q

Insertion of 2nd dorsal interossei?

A 
3rd digit (dde)
3rd proximal phalanx (radial side)
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15
Q

Origin 3rd dorsal interosei?

A

3rd and 4th metacarpals (adjacent sides, two heads)

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16
Q

Inseriton of 3rd dorsal interossei?

A 
3rd digit (dde)
3rd proximal phalanx (ulnar side)
17
Q

Origin of 4th dorsal interossei?

A

4th and 5th metacarpal (adjacent sides, two heads)

18
Q

Innervation of palmar interossei?

A

Deep Ulnar n.

C8, T1

19
Q

Action of palmar interossei?

A

2nd, 4th, and 5th digits…. MCP joints: flexion; Proximal and distal IP joints: extension and adduction towards 3rd digit

20
Q

Origin of 1st palmar interossei?

A

2nd metacarpal (ulnar side)

21
Q

Insertion of 1st palmar interossei?

A 
2nd digit (dde)
2nd proximal phalanx (base)
22
Q

Origin of 2nd palmar interossei?

A

4th metacarpal (radial side)

23
Q

Insertion of 2nd palmar interossei?

A 
4th digit (dde)
4th proximal phalanx (base)
24
Q

Origin of 3rd palmar interossei?

A

5th metacarpal (radial side)

25
Q

Insertion of 3rd palmar interossei?

A 
5th digit (dde)
5th proximal phalanx (base)
26
Q

Innervation of 3rd and 4th lumbricals?

A

Deep Ulnar n.

C8, T1

Exam 2 gross- Upper limb (23 decks)

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