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ANA 201 > Muscles Of Upper Limb 2 > Flashcards

Muscles Of Upper Limb 2 Flashcards

1
Q

Muscles of the shoulder region

Extrinsic – originate from the ____, and attach to the bones of the ____

Intrinsic – originate from the _____ and/or ____, and attach to the _____.

A

torso

shoulder

scapula

clavicle

humerus

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2
Q

Extrinsic and intrinsic mussels of the shoulder are the only Muscles that act on the shoulder

T/F

A

F

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3
Q

The extrinsic muscles of the shoulder are located in the _____, and are also known as the ______ muscles.

A

back

superficial back

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4
Q

There are ___ superficial extrinsic muscles and _____ deep extrinsic muscles

List them

A

two

Three

the trapezius and latissimus dorsi

Levator scapulae
Rhomboid major
Rhomboid minor

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5
Q

TRAPEZIUS

  • (broad or narrow?), flat, ____ shaped muscle
  • both sides together form a _____ shape
A

Broad

triangular

trapezoid

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6
Q

Trapezius

ORIGIN :

____ of the ____

______ ligament

___ vertebrae to ____ vertebrae

A

base; skull

nuchal

C7-T12

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7
Q

Trapezius

INSERTION:

____ border of _____

______ border of _____

_____ border of _____

______ space before _____

A

medial; acromion

superior; clavicle

inferior; scapular spine

triangular; scapular spine

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8
Q

Trapezius

ACTION:

upper and middle = ____

Middle and lower= _______

Lower= _______

A

elevation

adduction

depression

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9
Q

most superficial of all back muscles is the _____?

Latest back muscle is _____???

A

Trapezius

Latissimus dorsi

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10
Q

Trapezius

INNERVATION :

motor innervation is by ______

Proprioceptor fibers by ___ and ___ spinal nerves

A

accessory nerve (CN 11)

C3

C4

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11
Q

LATISSIMUS DORSI

ORIGIN:

______ fascia

_____ crest

spinous process ___ to ____

(Superior or inferior?) ____ ribs

A

Thoracolumbar

iliac

T6-T12

Inferior; 3

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12
Q

The most common cause of accessory nerve damage is ____ (i.e. due to a ______).

A

iatrogenic

medical procedure

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13
Q

To test the accessory nerve, ____ function can be assessed. This can be done by asking the patient to _____. Other clinical features of accessory nerve damage include muscle ____, partial paralysis of the _____, and an asymmetrical neckline.

A

trapezius

shrug his/her shoulders

wasting

sternocleidomastoid

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14
Q

LATISSIMUS DORSI

INSERTION
——- of ——-

A

intertubercular sulcus of humerus

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15
Q

LATISSIMUS DORSI

ACTION:

_____

_____ rotation

(Flexes or extends?)

A

adduction

internal

Extends

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16
Q

Lattisimus Dorsi

INNERVATION : _____ nerve

On the brachial plexus , anterior or posterior?

Which roots?

A

thoracodorsal

Posterior

C6,7,8

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17
Q

thoracodorsal nerve is aka???

______ nerve

A

Middle subscapular

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18
Q

LEVATOR SCAPULAE

ORIGIN :

_____ process of __ to __ vertebrae

A

transverse

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19
Q

Levator scapulae

INSERTION: ____ border of ____

A

medial

scapula

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20
Q

Levator scapulae

ACTION:
_____ scapula

A

elevates

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21
Q

Levator scapulae

INNERVATION :

_______ nerve

On the brachial plexus, anterior or posterior?

Which roots??

A

dorsal scapular

Posterior

C5

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22
Q

RHOMBOID MAJOR

-(above or below ?) rhomboid minor

A

Below

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23
Q

Rhomboid major

ORIGIN: spinous process of ___ to ___

RHOMBOID MINOR

ORIGIN:spinous process of __ to ___

A

T2-T5

C7-T1

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24
Q

Rhomboid major

INSERTION

between _____ and _____ of scapular

A

scapular spine and inferior angle

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25
Q

Rhomboid major

ACTION:

elevation or depression

adduction or abduction

A

elevation

adduction

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26
Q

Rhomboid major

INNERVATION : _____ nerve

A

dorsal scapular

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27
Q

RHOMBOID MINOR

INSERTION: ____ border of _____

A

medial

scapular spine

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28
Q

Rhomboid minor

ACTION:

elevation or depression

adduction or abduction

A

elevation

adduction

29
Q

Rhomboid minor

INNERVATION : _______ nerve

A

dorsal scapular

30
Q

The intrinsic muscles of the shoulder region also known as the _____ group

A

scapulohumeral

31
Q

There are six muscles in the scapulohumeral group

List them

A

the deltoid

teres major

supraspinatus
infraspinatus
subscapularis
teres minor

32
Q

The deltoid muscle is shaped like ______

A

an inverted triangle

33
Q

DELTOID

ORIGIN:

______

______

A

clavicle

scapula

34
Q

Deltoid

INSERTION :

______ on ____ side of humerus

A

deltoid tuberosity

lateral

35
Q

Deltoid

ACTION:

anterior = (flexion or extension ?) and (medial or lateral ?) rotation

posterior= (flexion or extension ?) and (medial or lateral ?) rotation

middle= _____

A

Flexion; medial rotation

Extension; lateral rotation

raise the hand from 15 degrees

36
Q

Deltoid

INNERVATION : ____ nerve

Of the brachial plexus, anterior or posterior?
Which roots

A

axillary

Posterior

C6,7,8

37
Q

TERES MAJOR

-forms the ____ border of a gap/space that the ____ nerve and _______ artery use to reach the ____

A

inferior

axillary

post circumflex humeral

post scapula

38
Q

Teres major

ORIGIN : ___ surface of ____ angle of scapula

A

posterior

inferior

39
Q

Teres major

INSERTION : ____ lip of _____of humerus

A

medial

intertubercular sulcus

40
Q

Teres major

ACTION :

adduction or abduction

medial or lateral rotation

A

Adduction

Medial rotation

41
Q

Teres major

INNERVATION : _____ nerve

Of the brachial plexus, anterior or posterior?

Which roots

A

lower subscapular

Posterior

C6,7,8

42
Q

SUPRASPINATUS

ORIGIN: _______

INSERTION : ______

ACTION: _______

A

supraspinatus fossa

greater tubercle

abducts the arm 0-15 degrees

43
Q

Supraspinatus

INNERVATION : _____ nerve

In the brachial plexus, anterior or posterior?

Which roots

A

suprascapular

Anterior

C5,6

44
Q

INFRASPINATUS

ORIGIN: ______ fossa

INSERTION : ____ tubercle

ACTION: _______ the arm

INNERVATION : ______ nerve

A

infraspinatus

greater

laterally rotates the arm

suprascapular

45
Q

SUBSCAPULARIS

ORIGIN: _____ fossa

INSERTION : _____ tubercle

ACTION:: ______ the arm

A

subscapularis

lesser

medially rotates

46
Q

Subscapularis

INNERVATION : _____ and ______ nerve

In brachial plexus, anterior or posterior?

Which roots

A

upper and lower subscapular

Posterior

C6,7,8

47
Q

TERES MINOR

ORIGIN:
(Anterior or posterior?) scapula,beside its ____ border

INSERTION : ______ tubercle

ACTION: ______ the arm

INNERVATION : _____ nerve

A

Posterior

lateral

greater

laterally rotates

axillary

48
Q

Rotator Cuff Tendonitis

Rotator cuff tendonitis refers to inflammation of the _____ of the rotator cuff muscles. This usually occurs secondary to _____ of the ____ joint.

The muscle most commonly affected is the _____. During abduction, it ‘rubs’ against the ______. Over time, this causes inflammation and ____ changes in the tendon itself.

A

tendons

repetitive use

shoulder

supraspinatus

coraco-acromial arch

degenerative

49
Q

Conservative treatment of rotator cuff tendonitis involves rest, _____, and ____. In more severe cases, _____ and _____ can be considered.

A

analgesia

physiotherapy

steroid injections and surgery

50
Q

Muscles acting on the hand can be divided into two groups: _____ and _____ muscles.

A

extrinsic and intrinsic

51
Q

The extrinsic muscles of the hand are located in the anterior and posterior compartments of the _____. They control ____ movements and produce a _____ grip.

The intrinsic muscles of the hand are located ______. They are responsible for the ____ motor functions of the hand.

A

forearm

crude; forceful

within the hand itself

fine

52
Q

The thenar muscles are ____ in number and are (short or tall?) muscles located at the ____ of the thumb.

The muscle bellies produce a bulge, known as the _____. They are responsible for the ____ movements of the thumb.

A

three

Short

base

thenar eminence

fine

53
Q

The _____ nerve innervates all the thenar muscles.

Of the brachial plexus, anterior or posterior?

Which roots

A

median

Anterior

C5-T1

54
Q

List the thenar muscles

A

THENAR

  • opponens pollicis
  • abductor policis brevis
  • flexor policis brevis
55
Q

HYPOTHENAR

  • _____ digiti minimi
  • _____ digiti minimi
  • _____ digiti minimi brevis

-responsible for ____ eminence at the ___ of the pinky

A

opponens

abductor

flexor

hypothenar

base

56
Q

The hypothenar is innervated by

_____ nerve(____ branch)

Of the brachial plexus , anterior or posterior?

Which roots

A

ulnar

deep

Anterior

C7,8, T1

57
Q

LUMBRUCALES
- _ in number

-they link ___ tendon to ____ tendon

A

4

extensor; flexor

58
Q

Each lumbrical is associated with ______

A

a finger

59
Q

Action of lumbricales

_____ at MP, _____ at IP

A

Flex

Extend

60
Q

INNERVATION of lumbricales

The lateral two lumbricals (of the___ and ____ fingers) are innervated by the ____ nerve.

The medial two lumbricals (of the ___ and ____ fingers) are innervated by the _____ nerve.

A

index and middle

median

little and ring

ulnar

61
Q

INTEROSSEI

  • _ dorsal
  • _ palmar

-both innervated by ____ nerve(deep branch)

A

4

3

ulnar

62
Q

Each dorsal interossei originates from the _____ and ____ surfaces of the ______ .

They attach into the ____ and ____ of each finger.

A

lateral and medial

metacarpals

extensor hood

proximal phalanx

63
Q

Dorsal interossei

Actions:

_____ the fingers at the ____ joint.

A

Abduct

MCP

64
Q

Palmar Interossei

These are located (anteriorly or posteriorly ?) on the hand

A

anteriorly

65
Q

Each palmar interossei originates from a ____ or ___ surface of a ____, and attaches into the ____ and ____ of same finger.

A

medial or lateral

metacarpal

extensor hood and proximal phalanx

66
Q

Palmar interossei

Actions: ____ the fingers at the ____ joint.

A

Adducts

MCP

67
Q

PALMARIS BREVIS

  • small or large
  • thin or large muscle
  • found very (deep or superficially?) in the subcutaneous tissue of the ____ eminence.
  • _____ nerve( ____ branch)
A

Small

Thin

superficially

hypothenar

ulnar

superficial

68
Q

ADDUCTOR POLICIS

  • small or large
  • ______ shaped
  • ___ heads
  • _____ of the thumb
  • ____ nerve(_____ branch)
A

large

triangular

2

adductor

Ulnar

Deep

69
Q

____ artery passes (anteriorly or posteriorly ?) through the ___ between the 2 heads of the adductor policies, forming the ______

A

radial

anteriorly

space

deep palmar arch

ANA 201 (34 decks)

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