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Module 4 102 > The hand > Flashcards

The hand Flashcards

1
Q

List the Carpals

A

Triquetrium.lunate, scaphoid, pisiform, hamate, capitate, trapazoid, trapezium

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2
Q

Ulnar nerve controls what in the hand

A

Controls the interossie
4-5 lumbricals
flexor digitorium profundus

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3
Q

Boutonnier Deformity

A

Hyper extension at the DIP and Flexion at the PIP

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4
Q

What is Swan Neck Deformity

A

Hyper extension of PIP
Flexion of DIP
Usually as a result of volar (palmar) PIP

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5
Q

Explain intrinsic vs Extrinsic in the hand

A

Intrinsic- muscles that start and end in the hand

Extrinsic- Muscles that start outside the hand, but end within the hand

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6
Q

Claw hand is

A

4-5 digit affected
flexion of PIP and DIP Extension of MCP
Ulnar never injury

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7
Q

Wrist Drop

A

A high injury to the radial nerve

Extensor Digitorum communis and major extensors of the wrist are rendered useless

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8
Q

What is Dupuytrens Disease

A

imbalance of collagen turn over
fascia tentsion
4-5 are affected

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9
Q

The median nerve controls what in the hand

A

passes through the carpal tunnel
sensation to forearm front and 1/2 4th digit
flexors of the forearm
largest % of pain fibers

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10
Q

The radial nerve controls what

A
  • goes through dorsal forearm (posterior)

- innervated Extensor digitorum communis and most extensors

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11
Q

Volar =

A

palmar

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12
Q

Flexor digitorum pollicus

A

DIP

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13
Q

Flexor digitorum superficial

A

PIP

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14
Q

Extensor digitorum Communis

A

DIP

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15
Q

Interoissie and lumbricals

A

PIP

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16
Q

Interoissie

A

Abduction -Palmar
Adduction-Dorsal
Extend PIP ( lateral bands)
flex MCP

17
Q

How many compartments are there in the wrist and hand

A

6

18
Q

2 digits that are flixed in the hand

A

2-3

19
Q

Extensory DIgitorum Communis do ?

A

Extends MCP

20
Q

Muscle of thenar Eminence

A

flexor pollicus brevis
abductor pollicus brevis
adductor pollicus
openens pollicus

21
Q

Hypothenar Eminence

A

Abductor digiti minimi
Flexor digiti minimi
Opponens digiti minimi
Palmaris Brevis

22
Q

What 2 hands fractures are like 2 wrist fractures

A

Dorsal Angulation- Coles- Towards back of hand (dorsal)

Volar Angulation- Smiths- towards palm of hand

23
Q

Lumbricals do?

A

Extemd DIP

24
Q

Flexor Digitorum Pollicus

A

Flexes DIP as a group

25
Q

What are the Creases of the palm

A

thenar- thumb
Proximal and distal palmar
Palmar digital MCP Joint
Proximal and distal IP fingers

26
Q

What does Flexor Digitorum Superficials do

A

flexor PIP

27
Q

What is Mallet finger

A

Extensor mechanism to DIP fails

28
Q

Wrist drop

A

Injury of the Radial nerve

Extensor Digitorum Communis and Major extensors of the wrist are rendered useless

29
Q

Hypothenar eminence makes up of which 4 muscles

A

Abd digiti minimi, flexor digiti minimi, oppenous digiti minimi, palmarus brevis

30
Q

Lumbricals are important for ??

A

Pinch grip

31
Q

What is the most mobile metacarpal ?

A

D5

32
Q

How man compartment of the hand are they ?

A

6

33
Q

What muscles consist of in compartments 1-6 in the hand

A
  1. extensor policies brevis and abd pollicus longus
  2. Extensor carpi radualis longus and brevis
  3. Extensor pollicus longus
  4. Extensor digitirum communis, extensor indicis prioria
  5. Extensor digiti minimi
  6. Extensors carpi ulnaris
34
Q

What does synovial Shealth do ?

A

Protects /lubricates tendons

35
Q

Juncture tendinae does what

A

Brings tendons into midline

Holds together

36
Q

What’s us the primary extensor of the pip joint

A

Extensors digitorum communis

37
Q

The primary extensor of the DIP Jt is

A

Lumbricals

Module 4 102 (3 decks)

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