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Kinesiology (OTD7110) > Kinesiology Week 7 > Flashcards

Kinesiology Week 7 Flashcards

1
Q

How many muscles are in the hand?
a. 19
b. 29
c. 9

A

b. 29 muscles

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2
Q

How many bones are in the hand?
a. 19
b. 29
c. 9

A

a. 19 bones

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3
Q

A ______ is a pictorial representation of the anatomical divisions of the primary motor cortex and the primary somatosensory cortex
a.
b.
c. cortical homunculus

A

c. cortical homunculus

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4
Q

The cortical homunculus shows the portion of the human brain directly responsible for the movement and exchange of sense and _____ information of the rest of the body
a.
b. motor
c.

A

b. motor

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5
Q

The carpus has ____ carpal bones
a. 5
b. 6
c. 7
d. 8

A

d. 8

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6
Q

The hand has ____ metacarpals
a. 5
b. 6
c. 7
d. 8

A

a. 5

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7
Q

What are the five digits of the hand?

A

Thumb, index, middle, ring, and small (little) fingers

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8
Q

A ____ is one metacarpal bone and its phalanges
a. doe
b. ray
c. me
d. fa

A

b. ray

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9
Q

The articulation between the proximal end of the metacarpal and the distal row or carpals are the _____ joints
a. carpometacarpal joints (CMC)
b. metacarpophalangeal joints (MCP)

A

a. CMC

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10
Q

The articulation between the metacarpals and the proximal phalanges form the _____ joints
a. carpometacarpal joints (CMC)
b. metacarpophalangeal joints (MCP)

A

b. MCP

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11
Q

Each finger has two interphalangeal joints, the _____ interphalangeal and the ______ interphalangeal
a. proximal and distal
b. anterior and posterior
c. superior and inferior

A

a. proximal and distal (PIP) and (DIP)

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12
Q

The thumb has only two phalanges and therefore only ___ interphalangeal (IP) joint(s)
a. 1
b. 2
c. none

A

a. 1

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13
Q

True or False: The palmer wrinkles are the dermal hinges where the skin folds on itself during movement

A

False: it is called the palmer creases

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14
Q

True or False: Palmer creases increase skin adherence for enhancing grasp

A

True

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15
Q

True of False: the golden arches are important to hand function as they can hold and manipulate objects

A

True

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16
Q

The _______ is formed by distal row of carpal bones, forms the carpal tunnel
a. proximal transverse arch
b. distal transverse arch
c. longitudinal arch

A

a. proximal transverse arch

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17
Q

The _______ passes through the MCP joints
a. proximal transverse arch
b. distal transverse arch
c. longitudinal arch

A

b. distal transverse arch

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18
Q

The _______ follows the general shape of the second and third rays
a. proximal transverse arch
b. distal transverse arch
c. longitudinal arch

A

c. longitudinal arch

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19
Q

True or False: When fabricating wrist splints, both the palmer arches and the distal palmer crease must be considered so the splint will fit well

A

True

20
Q

What is the name of the CMC joint of the thumb?

A

Trapeziometacarpal

21
Q

True or False: The trapeziometacarpal is a saddle shaped biaxial joint

A

True

22
Q

True of False: The Trapeziometacarpal is able to move in two planes and two axes

A

False; 3 planes and 3 axes

23
Q

The trapeziometacarpal is a ________ on ________
a. concave on convex
b. convex on concave

A

a. concave on convex

24
Q

How many degrees of freedom are there in the trapeziometacarpal?

A

2 degrees of freedom (abduction, adduction, flexion, extension)

25
Q

The metacarpophalangeal joint of the thumb (MP Joint) acts like a _____ joint
a. saddle
b. hinge
c. ball and socket

A

b. hinge

26
Q

The metacarpophalangeal joint of the thumb (MP Joint) is a ______ joint
a.
b.
c. condyloid

A

c. condyloid

27
Q

True or False: Motion at the thumb MP is more restricted than at the other MCP joints

A

True, this is due to the ulnar and radial collateral ligaments which restrict abduction and adduction

28
Q

What is gamekeepers thumb?

A

when the ulnar collateral ligament is torn (usually skiing injury)

29
Q

The second metacarpal is _____ to allow for two-point punch with the opposing thumb
a. supinated
b. pronated

A

a. supinated

30
Q

True or False: When flexed, the fourth and fifth metacarpal joints rotate and cup around objects

A

True

31
Q

Flexion is greater on the _______ aspect of the hand
a. radial
b. ulnar

A

b. ulnar

32
Q

NEED SLIDE 32, 33, 34, 35

A
33
Q

What is rheumatoid arthritis?

A

swelling and inflammation in the MCP joints

34
Q

What happens with the collateral ligaments if they are stressed during rheumatoid arthritis?

A

the ligaments will stretch and force will move in an ulnar direction, this results in permanent joint change, ulnar deviation.

35
Q

When joints are edematous, patients are encouraged not to do…
a. tasks that require tight fisting
b. activities that facilitate ulnar deviation
c. all of the above

A

c. all of the above

36
Q

slide 39, 40

A
37
Q

Which of the following contribute to stability of the hand
a. transverse carpal ligament
b. fibrous palmar aponeurosis (palmer fascia)
c. collateral ligaments of the joints
d. extensor retinaculum
e. all of the above
f. both A and B

A

e. all of the above

38
Q

What is the fibrous palmar aponeurosis (palmer fascia) a continuation of?

A

the flexor retinaculum

39
Q

What is palmar aponeurosis?

A

a triangular condensation of deep fascia that covers the palm and is anchored to the skin in distal regions

40
Q

What is the palmar aponeurosis anchored to?

A

the flexor retinaculum

41
Q

What is the palmar aponeurosis continuous with?

A

the palmaris longus tendon

42
Q

What is dupuytrens disease?

A

when fibroblastic cells invade the palmer fascia

43
Q

What are the intrinsic muscles of the hand; what are their function? slide 47-63

A
  1. Muscles of the Thenar Eminence
    Abductor pollicis brevis
    Flexor pollicis brevis
    Opponens pollicis
    Adductor pollicis
  2. Muscles of the hypothenar eminence
    Flexor digiti minimi
    Abductor digiti mini
    Opponens digiti minimi
    Palmaris brevis
  3. Abductor pollicis
  4. Lumbricals and Interossei
44
Q

Extrinsic flexors of the hand and function slide 66-69

A

Flexor digitorum superficialis
Flexor digitorum profundus
Flexor pollicus longus

45
Q

Extrinsic extensors of the fingers and function slide 71-80

A

Extensor digitorum
Extensor indicis
Extensor digiti minimi
Extensors of the thumb
Extensor pollicis longus
Extensor pollicis brevis
Abductor pollicis longus

Kinesiology (OTD7110) (9 decks)

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