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kinesiology > chapter 13 > Flashcards

chapter 13 Flashcards

1
Q

the hand is composed of which bones?

A

thumb, fingers, metacarpals, & phalanges

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2
Q

the carpometacarpal joint of the thumb is made of what type of joint?

A

saddle joint

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3
Q

what is the CMC joint of the thumb comprise of ?

A

the trapezium & the 1st metacarpal

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4
Q

another term for thumb extension?

A

radial abduction

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5
Q

what is another term for thumb abduction?

A

palmar abduction

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6
Q

where are the CMC joints located?

A

between the wrist and metacarpal joints

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7
Q

where is the metacarpophalanges?

A

the bottom of the phalanges (knuckles)

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8
Q

where is the proximal interphalanges (PIP)?

A

closest joint towards the hand (middle of fingers)

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9
Q

where is the distal interphalanges (DIP)?

A

towards the tip

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10
Q

where is the reference point for finger abduction?

A

middle or 3rd phalange

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11
Q

what joint motions can the phalanges do?

A

flexion/extension

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12
Q

how many phalanges make up the fingers?

A

3 phalanges

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13
Q

how many phalanges make up the thumb?

A

2 phalanges

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14
Q

what is the base of a phalange?

A

the most proximal end

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15
Q

what is the head of the phalange?

A

the distal end

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16
Q

a fibrous band on the anterior side of the wrist, which is made up of the transverse carpal ligament (superficially) & the palmar carpal ligament which keeps the tendons from “bowing out” or pushing through the skin?

A

flexor retinaculum

17
Q

arches over the carpal bones forming a tunnel for the passage of the long finger flexor tendons & the median nerve

A

transverse carpal ligament

18
Q

a fibrous band that transverses the posterior side of the wrist; which holds the extensor tendons close to the wrist

A

extensor retinaculum ligament

19
Q

why is the hand naturally concave?

A

skeleton, ligaments, & arches

20
Q

which type of muscle proximally attaches proximal to the wrist, is an assistive role in writ function, & their primary function at the thumb or finger?

A

extrinsic (outside the wrist)

21
Q

which type of muscle attaches at or distally to the carpals, used for fine motor control/precision movement of the hand? (can be divided into thenar,hypothenar,&palm)

A

intrinsic (inside the hand)

22
Q

O= medial epicondyle of humerus & coronoid
process
I= sides of the middle phalanx 2-5
A= MCP/PIP flexion, assists with wrist flexion

A

flexor digitorum superficialis

23
Q 
O= upper 3/4 of ulna
I= distal phalanx 2-5
A= MCP, PIP, DIP flexion 2-5
A

flexor digitorum profundus

24
Q 
O= lateral epicondyle of humerus
I= base of distal phalanx 2-5
A= mainly MCP extension, PIP & DIP extension 2-5
A

extensor digitorum

25
Q 
O= distal ulna
I= base of distal phalanx of 2nd finger
A= MCP, PIP, DIP extension of 2nd finger
A

extensor indicis

26
Q 
O= lateral epicondyle of humerus
I= base of distal phalanx, 5th finger
A= MCP, PIP, DIP extension of 5th finger
A

extensor digitorum minimi

27
Q

what is the latin term for thumb?

A

pollicis

28
Q 
O= anterior radius
I= distal phalanx of thumb
A= thumb MCP & ICP (tip of the thumb)
A

flexor pollicis longus

29
Q 
O= posterior radius, interosseous membrane
I= base of 1st metacarpal (moves CMC0
A= thumb MCP extension
A

extensor pollicis brevis

30
Q 
O= middle posterior ulna & interosseous membrane
I= base of distal phalanx of thumb
A= MCP and ICP extension of the thumb
A

extensor pollicis longus

31
Q

what is the bulky pad at the base of ones thumb?

A

thenar muscles

32
Q

what is the bulky pad on the side of the little finger?

A

hypothenar muscles

33
Q

what muscles make up the thenar?

A

flexor pollicis brevis, abductor pollicis brevis, & opponens pollicis

34
Q

what muscles make up the hypothenar?

A

flexor digitorum minimi, abductor digiti minimi, & opponens digiti minimi

35
Q

what is the functional hand position?

A

wrist slightly extended, with the MCP & ICP slightly flexed, & the thumb in opposition

36
Q

used when an object needs to be forcefully held

example: holding a hammer or using a door knob

A

power grips

37
Q

used when an object needs to be manipulated

example: holding a pen or threading a needle

A

precision grip

kinesiology (10 decks)

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