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Human Anatomy 2 > Muscles Of The Hand (2) > Flashcards

Muscles Of The Hand (2) Flashcards

1
Q

What is the origin of the opponens pollicis?

A

Flexor retinaculum

Tubercles of scaphoid and trapezium

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2
Q

What is the attachment of the opponens pollicis?

A

Lateral side of 1st metacarpal

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3
Q

What is the function of the opponens pollicis?

A

Oppose thumb

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4
Q

What is the origin of the abductor pollicis brevis?

A

Flexor retinaculum

Tubercles of scaphoid and trapezium

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5
Q

What is the attachment of the abductor pollicis brevis?

A

Lateral side of 1st digit at base of distal phalanx

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6
Q

What is the function of the abductor pollicis brevis?

A

Abducts thumb

Helps oppose thumb

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7
Q

What is the origin of the flexor pollicis brevis?

A

Flexor retinaculum

Tubercles of scaphoid and trapezium

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8
Q

What is the attachment of the flexor pollicis brevis?

A

Lateral side of 1st digit at base of distal phalanx

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9
Q

What is the function of the flexor pollicis brevis?

A

Flexes thumb

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10
Q

What is the origin of the oblique head of the adductor pollicis?

A

Bases of 2 and 3 metacarpals, capitate, and adjacent carpals

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11
Q

What is the origin of the transverse head of the adductor pollicis?

A

Anterior surface of 3rd metacarpal shaft

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12
Q

What is the attachment of the adductor pollicis?

A

Medial side of 1st digit at base of proximal phalanx

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13
Q

What is the function of the adductor pollicis?

A

Adducts thumb towards lateral border of palm

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14
Q

What is the origin of the abductor digiti minimi?

A

Pisiform

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15
Q

What is the attachment of the abductor digiti minimi?

A

Pisiform

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16
Q

What is the function of the abductor digiti minimi?

A

Abducts 5th digit

17
Q

What is the origin of the flexor digiti minimi brevis?

A

Hook of hamate and flexor retinaculum

18
Q

What is the attachment of the flexor digiti minimi brevis?

A

Medial side of 5th digit at base of proximal phalanx

19
Q

What is the function of the flexor digiti minimi brevis?

A

Flexes proximal phalanx of 5th digit

20
Q

What is the origin of the opponens digiti minimi?

A

Hook of hamate and flexor retinaculum

21
Q

What is the attachment of the opponens digiti minimi?

A

Medial border of 5th metacarpal

22
Q

What is the function of the opponens digiti minimi?

A

Draws 5th metacarpal anterior and rotates it

23
Q

What is the origin of the 1st and 2nd Lumbricals?

A

Lateral 2 tendons of flexor digitorum profundus

24
Q

What is the origin of the 3rd and 4th Lumbricals?

A

Medial 3 tendons of flexor digitorum profundus

25
Q

What is the attachment of the Lumbricals?

A

Lateral side of extensor

Expansions of 2-5 digits

26
Q

What is the function of the Lumbricals?

A

Flex MCP joints

Extends IP joints

27
Q

What is the origin of the dorsal interossei?

A

Adjacent sides of 2 metacarpals

28
Q

What is the attachment of the dorsal interossei?

A

Bases of proximal phalanges

Extensor expansions of 2-4 digits

29
Q

What is the function of the dorsal interossei?

A

Abducts 2-4 digits from axial line

Acts with Lumbricals

30
Q

What is the origin of the palmar interossei?

A

Palmar surface of 2,4 and 5 metacarpals

31
Q

What is the attachment of the palmar interossei?

A

Bases of proximal phalanges

Extensor expansions of 2, 4, and 5 digits

32
Q

What is the function of the palmar interossei?

A

Adducts 2, 4, and 5 digits towards axial line

Assists Lumbricals

33
Q

What will happen to everything distal of compression site?

A

It will lose function

34
Q

What are the important compression zones of the median nerve?

A

Pronator teres

Carpal tunnel

35
Q

What are the important compression zones of the ulnar nerve?

A

Cubital tunnel

Guyons canal

36
Q

What are the important compression zones of the radial nerve?

A

Triangular interval

Supinator (arcade of froshe)

37
Q

What is the anterior interosseus nerve a branch of?

A

Median nerve

38
Q

What are the branches of the radial nerve?

A

Deep radial nerve

Posterior interosseus

Human Anatomy 2 (20 decks)

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