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Sum 2014 - Anat Exam 1 > Exam 1 - Wrist and Hand > Flashcards

Exam 1 - Wrist and Hand Flashcards

1
Q

What are the Proximal row Carpal bones?

A

Scaphoid, Lunate, Triquetrum, Pisiform

Some Lovers Try Positions That They Can’t Handle

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2
Q

What are the Distal row Carpal bones?

A

Trapezium, Trapezoid, Capitate, Hamate
Some Lovers Try Positions That They Can’t Handle
TrapeziUM is by the thUMB, TrapeziOID is inSIDE.

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3
Q

What are the bones of the fingers and thumb?

A

Metacarpal and 3 phalanges for the fingers and 2 phalanges for the thumb

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4
Q

What are the Thenar muscles?

A

Abductor Pollicis Brevis, Flexor Pollicis Brevis, Adductor Pollicis, Opponens Pollicis
Brevis - Abduct, Flex No Brevis - Oppose, Adduct
Abduct, Flex, Oppose, Adduct

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5
Q

What are the Hypothenar muscles?

A

Abductor digiti minimi, Flexor digiti minimi brevis, Opponens digiti minimi
Brevis - Flex. No Brevis - Abduct, Oppose
Flex, Oppose, Abduct - Digiti Minimi

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6
Q

What are the muscles of the hand besides the Thenar and Hypothenar muscles?

A

Lumbricals, Dorsal interossei, Palmar interossei

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7
Q

What are the origins of abductor pollicis brevis?

A

flexor retinaculum, scaphoid, trapezium

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8
Q

What are the insertions of abductor pollicis brevis?

A

base of the proximal phalanx of the first digit

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9
Q

What are the functions of abductor pollicis brevis?

A

abducts thumb

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10
Q

What innervates the abductor pollicis brevis?

A

recurrent branch of median nerve

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11
Q

What supplies blood to abductor pollicis brevis?

A

superficial palmar br. of the radial a.

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12
Q

What are the origins of Flexor pollicis brevis?

A

flexor retinaculum, trapezium

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13
Q

What are the insertions of Flexor pollicis brevis?

A

proximal phalanx of the 1st digit

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14
Q

What are the functions of Flexor pollicis brevis?

A

flexes the carpometacarpal and metacarpophalangeal joints of the thumb

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15
Q

What innervates the Flexor pollicis brevis?

A

recurrent branch of the median nerve

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16
Q

What supplies blood to the Flexor pollicis brevis?

A

superficial palmar br. of the radial a.

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17
Q

What are the origins of Adductor pollicis?

A

oblique head: capitate and base of the 2nd and 3rd metacarpals; transverse head: shaft of the 3rd metacarpal

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18
Q

What are the insertions of Adductor pollicis?

A

base of the proximal phalanx of the thumb

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19
Q

What are the functions of Adductor pollicis?

A

Adducts the thumb

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20
Q

What innervates the Adductor pollicis?

A

ulnar nerve, deep branch

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21
Q

What supplies blood to the Adductor pollicis?

A

deep palmar arterial arch

22
Q

What are the origins of Abductor digiti minimi?

A

pisiform

23
Q

What are the insertions of Abductor digiti minimi?

A

base of the proximal phalanx of the 5th digit on its ulnar side

24
Q

What are the functions of Abductor digiti minimi?

A

abducts the 5th digit

25
Q

What innervates the Abductor digiti minimi?

A

deep branch of the ulnar nerve

26
Q

What supplies blood to the Abductor digiti minimi?

A

ulnar artery

27
Q

What are the origins of Flexor digiti minimi brevis?

A

hook of hamate & the flexor retinaculum

28
Q

What are the insertions of Flexor digiti minimi brevis?

A

proximal phalanx of the 5th digit

29
Q

What are the functions of Flexor digiti minimi brevis?

A

flexes the carpometacarpal and metacarpophalangeal joints of the 5th digit

30
Q

What innervates the Flexor digiti minimi brevis?

A

ulnar nerve, deep branch

31
Q

What supplies blood to the Flexor digiti minimi brevis?

A

ulnar artery

32
Q

What are the origins of Opponens digiti minimi?

A

hook of hamate and flexor retinaculum

33
Q

What are the insertions of Opponens digiti minimi?

A

shaft of 5th metacarpal

34
Q

What are the functions of Opponens digiti minimi?

A

opposes the 5th digit

35
Q

What innervates the Opponens digiti minimi?

A

Ulnar nerve, deep branch

36
Q

What supplies blood to the Opponens digiti minimi?

A

ulnar artery

37
Q

What are the origins of the Lumbricals?

A

flexor digitorum profundus tendons of digits 2-5

38
Q

What are the insertions of the Lumbricals?

A

extensor expansion on the radial side of the proximal phalanx of digits 2-5

39
Q

What are the functions of the Lumbricals?

A

flex the metacarpophalangeal joints, extend the proximal and distal interphalangeal joints of digits 2-5

40
Q

What innervates the Lumbricals?

A

median nerve (radial 2) via palmar digital nerves & ulnar nerve (ulnar 2) via deep branch

41
Q

What supplies blood to the Lumbricals?

A

superficial palmar arterial arch

42
Q

What are the origins of the Dorsal interossei?

A

four muscles, each arising from two adjacent metacarpal shafts

43
Q

What are the insertions of the Dorsal Interossei?

A

base of the proximal phalanx and the extensor expansion on lateral side of the 2nd digit, lateral & medial sides of the 3rd digit, and medial side of the 4th digit

44
Q

What are the functions of the Dorsal Interossei?

A

flex the metacarpophalangeal joint, extend the proximal and distal interphalangeal joints of digits 2-4, abduct digits 2-4 (abduction of digits in the hand is defined as movement away from the midline of the 3rd digit)

45
Q

What innervates the Dorsal Interossei?

A

ulnar nerve, deep branch

46
Q

What supplies blood to the Dorsal Interossei?

A

dorsal and palmar metacarpal aa.

47
Q

What are the origins of the Palmar Interossei?

A

four muscles, arising from the palmar surface of the shafts of metacarpals 1, 2, 4, & 5 (the 1st palmar interosseous is often fused with the adductor pollicis m.)

48
Q

What are the insertions of the Palmar interossei?

A

base of the proximal phalanx and extensor expansion of the medial side of digits 1 & 2, and lateral side of digits 4 & 5

49
Q

What are the functions of the Palmar Interossei?

A

flexes the metacarpophalangeal, extends proximal and distal interphalangeal joints and adducts digits 1, 2, 4, & 5 (adduction of the digits of the hand is in reference to the midline of the 3rd digit)

50
Q

What innervates the Palmar Interossei?

A

ulnar nerve, deep branch

51
Q

What supplies blood to the Palmar Interossei?

A

Superficial is Ulnar artery and Deep is Radial artery

Sum 2014 - Anat Exam 1 (14 decks)

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