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Occupational Therapy FINAL EXAM > Hand ANATOMY > Flashcards

Hand ANATOMY Flashcards

1
Q

What is the OINA for ABductor Pollicus Brevis?

on thumb

A

O: Scaphoid + Trapezium
I: Prox. phalanx of thumb
A: abducts thumb at MCP
N: Median nerve

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2
Q

What is the OIAN for OPPONENS POLLICUS ?

thumb

A

O: trapezium
I: 1st MCP
A: medially rotate thumb into *opposition
N: Median

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3
Q

What is the OIAN for FLEXOR POLLICUS BREVIS ?

|&raquo_space;SRTONGEST MUSCLE IN HAND!!!!!!!!
thumb

A

O: Trapezium
I: 1st prox. phalanx
A: flexes thumb MCP joint
N: median

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4
Q

What is the OIAN for ADDUCTOR POLLICUS ?

-not like other nerve (abductor vs. adductor)

A

O: 2nd + 3rd MC and Capitate
I: Prox. Phalynx of thumb
A: adducts
N: Ulnar

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5
Q

What is the OIAN for FLEXOR DIGITI MINIMI ?

D5-little finger

A

O: hook of hamate
I: prox. phalanx of D5 at MCP
A: flexes D5
N: Ulnar

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6
Q

What is the OIAN for ABDUCTOR DIGITI MINIMI ?

D5

A

O: Pisiform + tendon of FCU (Flexor Capri Ulnaris
I: Prox. phalanx D5
A: abducts D5
N:Ulnar

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7
Q

What is the OIAN for OPPONENS DIGITI MINIMI ?

A

O: Hook of Hamate
I: 5th Metacarpal
A: rotatese 5th MCP joint into opposition
N:Ulnar

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8
Q

What is the OIAN for LUMBRICALS ?

A

O: tendons of FDP (Flexor digitorum profundus
I: Dorsal hoods of D2-D5
A: Flexion of MCP’s + Extension of IP joints D2-D5 (Lumbrical grip)
N: Median and Ulnar

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9
Q

What is the OIAN for DORSAL INTEROSSEI ?

A

O: Adjacent sides of MC’s
I: Base of prox. phalanx of D2-D4
A: Abduction of D2 + D4
N: Ulnar

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10
Q

What is the OIAN for PALMAR INTEROSSEI ?

A

O: D2-D5
I: Base of Prox. phalanx + extensor hoods D2-D5
A: adducts D2, D4+ D5
N: Ulnar

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11
Q

?What are the 3 muscles in the Thenar Emminence?

A
  1. Abductor Pollicis brevis
  2. Opponens Pollicis
  3. Flexor Pollicis Brevis
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12
Q

?What are the 3 muscles in the Hypeprthenar Emminence?

A
  1. Flexor Digiti Minimi
  2. Abductor Digiti Minimi
  3. Opponens Digiti Minimi
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13
Q

What does DAB stand for?

A

Dorsal Interossei Abduction

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14
Q

Where is the Thenar EMINENCE on your hand?

A

on your thumb side (everything under the thenar crease)

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15
Q

Where is the Hyperthenar EMININCE?

A

at the ulnar side

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16
Q

What joint is it at the thumb?

A

saddle joint

17
Q

what 2 directions is there for the arches of the hand?

A
  1. Longitudinal

2. Transverse

18
Q

What is the Dupuytren’s contracture?

A

shortening of palmar fascia (D4 + D5) go down

19
Q

What is the trigger thumb?

A
  • “snapping finger” (thumb)

- tendon go into sheaths (tunnnels) and because its inflamed it cant get through the tunnels

20
Q

*What is the Mallet finger?

A

-*torn tendon at DIP and it droops down

21
Q

*What is the Swan neck deformity?

A
  • PIP hyper extension
  • DIP flexion
  • damage to volar plate
22
Q

*What is the Boutonniere deformity?

A
  • *PIP flexed: torn tendon

- DIP hyper extended

23
Q

What is the Position of Rest?

A

wrist: extended
phalanges: slight flexion
thumb: partial oppositon

24
Q

What is the Position of Function?

A

wrist: extended
phalanges: flexed
thumb: abducted and opposition

25
Q
  • Collateral ligaments of the MCP’s are longest in ?
A

Flexion

26
Q
  • Collateral ligaments of the MCPs are shortest in
A

Extension

27
Q

Why is it important to wear splints correctly?

A

to maintain Functional position of hand

28
Q

What happens to the Collateral ligaments if the hand slides back in a resting hand splint?

A

they all go into position of their SHORTEST position = maintaining Position of Deformity

29
Q

What is the Position of Deformity (if we leave inflammation in this position?)

A

MCP joints= extended

IP joints= flexed

30
Q

What are the 3 nerves of the Brachial Plexus ?

A
  1. Radial
  2. Median
  3. Ulnar
31
Q

(What are the muscles that are innervated by the Median nerve? )

A
  1. ABductor Pollicus Brevis
  2. OPPONENS POLLICUS
  3. FLEXOR POLLICUS BREVIS
  4. LUMBRICALS
32
Q

(What are the muscles innervate by the Ulnar nerve?)

A
  1. ADDUCTOR POLLICUS
  2. FLEXOR DIGITI MINIMI
  3. ABDUCTOR DIGITI MINIMI
  4. PALMAR INTEROSSEI
  5. DORSAL INTEROSSEI
  6. LUMBRICALS
  7. OPPONENS DIGITI MINIMI
33
Q

**What nerve is responsible for your Sensation?

A

Radial nerve

34
Q

***What nerve is responsible for your Sensation + Motor?

A

Sensation + Motor

35
Q

What are 2 steps to test intrinsic muscles?

A

Step 1:

  • MCPJ in extension
  • PIP passively stretched

Step 2:

  • MCPJ in flexion
  • PIPJ passively flexed

Occupational Therapy FINAL EXAM (6 decks)

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