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Advanced Anatomy > Hand > Flashcards

Hand Flashcards

1
Q

Palmar aponeurosis blends

A

palmar carpal ligament

palmaris longus tendon

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2
Q

Fibrous digital sheath is composed of …

A

annular and cruciform parts

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3
Q

Fibrous digital sheath anchors … to each phalanx in synovial sheath in between.

A

flexor tendons

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4
Q

Flexor retinaculum is a dense connective tissue band that bridges between tubercle of the … and …

A

trapezium and pisiform plus hook of hamate

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5
Q

Flexor retinaculum forms the roof of …

A

carpal tunnel

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6
Q

Intrinsic muscles of the hand

A 
thenar
hypothenar
central
adductor 
interosseous
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7
Q

Palmar brevis is a superficial muscle that is not ….

A

in the hypothenar compartment

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8
Q

The thenar muscles form the … and the chief function is… how many muscles are in it?

A

thenar eminence
opposition of the thumb
3

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9
Q

Which muscle abducts the carpometacarpal joint of the thumb and assists in early opposition?

A

abductor pollicis brevis

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10
Q

What muscle flexes the carpometacarpal, metacarpophalangeal joints of the thumb?

A

flexor pollicis brevis

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11
Q

What nerve innervates the flexor pollicis brevis?

A

median

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12
Q

What muscle flexes and medially rotates the first metacarpal bone?

A

opponens pollicis

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13
Q

What muscle abducts the 5th digit and helps flex the proximal phalanx of the 5th digit?

A

abductor digit minimi

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14
Q

What muscle flexes the 5th digit at the metacarpophalangeal joint?

A

flexor digiti minimi brevis

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15
Q

What muscle flexes and laterally rorates the 5th metacarpal bone for opposition action?

A

opponens digti minimi

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16
Q

All hypothenar muscles are innervated by the …

A

ulnar nerve

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17
Q

All thenar muscles are innervated by the…

A

median nerve

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18
Q

Lumbricals for 2nd and 3rd finger innervated by … nerve. Lumbricals for 4th and 5th finger are innervated by…

A

median

ulnar

19
Q

Adductor pollicis are innervated by the …nerve.

A

ulnar

20
Q

Dorsal interossei muscles are innervated by..

A

ulnar nerve

21
Q

Palmar interossei muscles are innervated by the…

A

ulnar nerve

22
Q

Thenar muscles

A

APB
FPB
Opponens pollicis

23
Q

Hypothenar muscles

A

ADM
FDM
ODM

24
Q

Central muscles

A

lumbricals

25
Q

Adductor muscles

A

adductor pollicis

26
Q

Interosseous muscles

A

PAD

DAB

27
Q

Tenosynovitis is …

A

infection of the synovial sheath

28
Q

De Quervains tenovaginitis stenosans

A

excessive friction of abductor pollicis longus and extensor pollicis brevis that causes a thickening of the synovial sheath.

29
Q

How to test De Quervains tenovaginitis stenosans?

A

hold thumb inside the other four fingers and adduct wrist joint

30
Q

Superficial palmar arch has ..

A

common palmar digital arteries

proper palmar digital arteries

31
Q

Deep palmar arch has…

A

palmar metacarpal arteries

common palmar digital arteries

32
Q

Superficial palmar arch is mainly formed by the…

A

ulnar artery

33
Q

The deep palmar arch is formed mainly by the

A

radial artery

34
Q

Each finger has … digital arteries

A

4

35
Q

Carpal tunnel is a passageway deep to the flexor retinaculum between the … and …

A

tubercles of the scaphoid and trapezium on the lateral side and the pisiform and hook of hamate on the medial side

36
Q

There are … tendons passing through the carpal tunnel.

A

nine

37
Q

Which nerve passes through the carpal tunnel?

A

median

38
Q

Median nerve supplies… muscles and … lumbricals.

A

three thenar

1st and 2nd

39
Q

Symptoms of carpal tunnel syndrome

A

muscle weakness resulting in difficulty or incapability of opposing the thumb

40
Q

Ulnar nerve injury appearance

A

clawhand

41
Q

Guyons canal neuropathy affects

A

interosseus muscles (DAB, PAD) and adductor pollicis muscle

42
Q

Ulnar nerve innervates

A

interosseous muscles
3rd and 4th lumbricals
hypothenar muscles
adductor pollicis muscle

43
Q

Radial has …. intrinsic hand muscle innervation.

A

no

44
Q

Most thumb movements are performed by … nerve.

What nerve performs extension and aids in abduction?

A

median

radial

Advanced Anatomy (38 decks)

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