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LRA 217 Anatomy Upper extremeties > Hand and Wrist > Flashcards

Hand and Wrist Flashcards

1
Q

How many bones total in hand/wrist?

A

27

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2
Q

How many phalanges?

A

14

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3
Q

How many metacarpals?

A

5

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4
Q

How many carpals?

A

8

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5
Q

Composition of fingers 2-5

A

Three phalanges - proximal, middle, distal

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6
Q

Composition of thumb (first digit)

A

Two phalanges - proximal and distal

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7
Q

The three parts of the phalanx and metacarpal bones

A

Head (distal), body (shaft), base (expanded proximal base)

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8
Q

The joint between the two phalanges of the thumb

A

interphalangeal joint (IP)

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9
Q

The joint between the first metacarpal and the proximal phalanx or thumb

A

First metacarpophalangeal joint (MCP)

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10
Q

What are joints of the fingers starting with most distal?

A

Distal interpalangeal joint (DIP), Proximal interphalangeal joint (PIP), metacarpalphalangeal joints (MCP)

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11
Q

Name of joints at the proximal end of metacarpals that articulate with 5 carpals

A

carpometacarpal joints (CMC)

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12
Q

First metacarpal articulate with…

A

trapezium

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13
Q

Second metacarpal articulates with…

A

trapezoid

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14
Q

Third metacarpal articulates with…

A

capitate

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15
Q

Fourth and fifth metacarpal articulates with…

A

hamate

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16
Q

Proximal row of carpals beginning on thumb side

A

scaphoid, lunate, triquetrum, pisiform

17
Q

Another term for scaphoid

A

navicular

18
Q

Smallest of the carpal bones

A

pisiform

19
Q

Largest of the carpal bones

A

capitate

20
Q

Distal row of carpals starting on thumb side

A

trapezium, trapezoid, capitate, hamate

21
Q

What carpal bone articulate with the 4th and 5th metacarpals?

A

Hamate

22
Q

What is the smallest carpal bone in distal row?

A

trapezoid

23
Q

Another term for triquetrum?

A

cuneiform

24
Q

Classification of all joints of the upper limbs

A

synovial/diarthroidal

25
Q

What movement type are the IP joints?

A

ginglymus - hinge-type. Moves two directions - flexion and extension

26
Q

What type of movement is the wrist joint?

A

ellipsoidal - movement in 4 directions

27
Q

What is the wrist joint called?

A

radiocarpal joint

28
Q

What two carpal bones articulate directly with the radius?

A

scaphoid and lunate

29
Q

Primary malignant bone tumor

A

multiple myeloma

LRA 217 Anatomy Upper extremeties (1 decks)

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