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Gross Anatomy > Week 4 > Flashcards

Week 4 Flashcards

1
Q

Origin of Abductor Pollicis Brevis

A

Lateral pillars (scaphoid and trapezium); Flexor Retinaculum

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2
Q

Insertion of Abductor Pollicis Brevis

A

Proximal phalanx 1 - lateral base

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3
Q

Nerve of Abductor Pollicis Brevis

A

Motor recurrent nerve (C8T1)

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4
Q

Action of Abductor Pollicis Brevis

A

Thumb abduction at CM and MP joints; assists in opposition

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5
Q

Origin of Flexor Pollicis Brevis

A

Superficial Head: Distal lateral pillars; Flexor retinaculum

Deep Head: Capitate and Trapezoid

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6
Q

Insertion of Flexor Pollicis Brevis

A

Proximal phalanx 1 - lateral base

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7
Q

Nerve of Flexor Pollicis Brevis

A

Superficial head: motor recurrent nerve (C8T1)

Deep head: ulnar nerve (C8T1)

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8
Q

Action of Flexor Pollicis Brevis

A

Thumb flexion at MP joint

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9
Q

Origin of Opponens Pollicis

A

Distal Lateral Pillars; Flexor Retinaculum

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10
Q

Insertion of Opponens Pollicis

A

MC1 - shaft, lateral 1/2 palmar surface, whole length

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11
Q

Nerve of Opponens Pollicis

A

Motor Recurrent nerve (C8T1)

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12
Q

Action of Opponens Pollicis

A

Thumb opposition at CM joint

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13
Q

Origin of Adductor Pollicis

A

Oblique head: MC’s 2+3 - anterior bases; Capitate and Trapezoid
Transverse head: MC 3- anterior shaft

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14
Q

Insertion of Adductor Pollicis

A

Proximal phalanx 1 - medial base

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15
Q

Nerve of Adductor Pollicis

A

Deep ulnar nerve (C8T1)

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16
Q

Action of Adductor Pollicis

A

Thumb adduction at CM and MP joints

17
Q

Origin of Abductor Digiti Minimi

A

Proximal medial pillar

18
Q

Insertion of Abductor Digiti Minimi

A

Proximal phalanx 5 - medial base

19
Q

Nerve of Abductor Digiti Minimi

A

Deep Ulnar Nerve (C8T1)

20
Q

Action of Abductor Digiti Minimi

A

Little finger abduction at MP joint

21
Q

Origin of Flexor Digiti Minimi

A

Distal medial pillar; flexor retinaculum

22
Q

Insertion of Flexor Digiti Minimi

A

Proximal phalanx 5 - lateral base

23
Q

Nerve of Flexor Digiti Minimi

A

Deep Ulnar Nerve (C8T1)

24
Q

Action of Flexor Digiti Minimi

A

Little finger flexion at MP joint

25
Q

Origin of Opponens Digiti Minimi

A

Distal medial pillars; flexor retinaculum

26
Q

Insertion of Opponens Digiti Minimi

A

MC 5 - medial shaft

27
Q

Nerve of Opponens Digiti Minimi

A

Deep Ulnar nerve (C8T1)

28
Q

Action of Opponens Digiti Minimi

A

Little finger opposition

29
Q

Origin of Palmaris Brevis

A

Palmar aponeurosis

30
Q

Insertion of Palmaris Brevis

A

Skin on medial palm

31
Q

Nerve of Palmaris Brevis

A

Superficial ulnar nerve (C8T1)

32
Q

Action of Palmaris Brevis

A

Tenses the hypothenar eminence

Gross Anatomy (11 decks)

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