Muscles Of Upper Limb 2 Flashcards by Iseoluwa Ojo

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 _____.

torso

shoulder

scapula

clavicle

humerus

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

T/F

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

back

superficial back

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There are ___ superficial extrinsic muscles and _____ deep extrinsic muscles

List them

two

Three

the trapezius and latissimus dorsi

Levator scapulae
Rhomboid major
Rhomboid minor

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TRAPEZIUS

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

Broad

triangular

trapezoid

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Trapezius

ORIGIN :

____ of the ____

______ ligament

___ vertebrae to ____ vertebrae

base; skull

nuchal

C7-T12

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Trapezius

INSERTION:

____ border of _____

______ border of _____

_____ border of _____

______ space before _____

medial; acromion

superior; clavicle

inferior; scapular spine

triangular; scapular spine

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Trapezius

ACTION:

upper and middle = ____

Middle and lower= _______

Lower= _______

elevation

adduction

depression

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most superficial of all back muscles is the _____?

Latest back muscle is _____???

Trapezius

Latissimus dorsi

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Trapezius

INNERVATION :

motor innervation is by ______

Proprioceptor fibers by ___ and ___ spinal nerves

accessory nerve (CN 11)

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LATISSIMUS DORSI

ORIGIN:

______ fascia

_____ crest

spinous process ___ to ____

(Superior or inferior?) ____ ribs

Thoracolumbar

iliac

T6-T12

Inferior; 3

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

iatrogenic

medical procedure

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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.

trapezius

shrug his/her shoulders

wasting

sternocleidomastoid

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LATISSIMUS DORSI

INSERTION
——- of ——-

intertubercular sulcus of humerus

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LATISSIMUS DORSI

ACTION:

_____

_____ rotation

(Flexes or extends?)

adduction

internal

Extends

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Lattisimus Dorsi

INNERVATION : _____ nerve

On the brachial plexus , anterior or posterior?

Which roots?

thoracodorsal

Posterior

C6,7,8

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thoracodorsal nerve is aka???

______ nerve

Middle subscapular

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LEVATOR SCAPULAE

ORIGIN :

_____ process of __ to __ vertebrae

transverse

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Levator scapulae

INSERTION: ____ border of ____

medial

scapula

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Levator scapulae

ACTION:
_____ scapula

elevates

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Levator scapulae

INNERVATION :

_______ nerve

On the brachial plexus, anterior or posterior?

Which roots??

dorsal scapular

Posterior

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RHOMBOID MAJOR

-(above or below ?) rhomboid minor

Below

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Rhomboid major

ORIGIN: spinous process of ___ to ___

RHOMBOID MINOR

ORIGIN:spinous process of __ to ___

T2-T5

C7-T1

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Rhomboid major

INSERTION

between _____ and _____ of scapular

scapular spine and inferior angle

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Rhomboid major ACTION: elevation or depression adduction or abduction

elevation adduction

Rhomboid major INNERVATION : _____ nerve

dorsal scapular

RHOMBOID MINOR INSERTION: ____ border of _____

medial scapular spine

Rhomboid minor ACTION: elevation or depression adduction or abduction

elevation adduction

Rhomboid minor INNERVATION : _______ nerve

dorsal scapular

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

scapulohumeral

There are six muscles in the scapulohumeral group List them

the deltoid teres major supraspinatus infraspinatus subscapularis teres minor

The deltoid muscle is shaped like ______

an inverted triangle

DELTOID ORIGIN: ______ ______

clavicle scapula

Deltoid INSERTION : ______ on ____ side of humerus

deltoid tuberosity lateral

Deltoid ACTION: anterior = (flexion or extension ?) and (medial or lateral ?) rotation posterior= (flexion or extension ?) and (medial or lateral ?) rotation middle= _____

Flexion; medial rotation Extension; lateral rotation raise the hand from 15 degrees

Deltoid INNERVATION : ____ nerve Of the brachial plexus, anterior or posterior? Which roots

axillary Posterior C6,7,8

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

inferior axillary post circumflex humeral post scapula

Teres major ORIGIN : ___ surface of ____ angle of scapula

posterior inferior

Teres major INSERTION : ____ lip of _____of humerus

medial intertubercular sulcus

Teres major ACTION : adduction or abduction medial or lateral rotation

Adduction Medial rotation

Teres major INNERVATION : _____ nerve Of the brachial plexus, anterior or posterior? Which roots

lower subscapular Posterior C6,7,8

SUPRASPINATUS ORIGIN: _______ INSERTION : ______ ACTION: _______

supraspinatus fossa greater tubercle abducts the arm 0-15 degrees

Supraspinatus INNERVATION : _____ nerve In the brachial plexus, anterior or posterior? Which roots

suprascapular Anterior C5,6

INFRASPINATUS ORIGIN: ______ fossa INSERTION : ____ tubercle ACTION: _______ the arm INNERVATION : ______ nerve

infraspinatus greater laterally rotates the arm suprascapular

SUBSCAPULARIS ORIGIN: _____ fossa INSERTION : _____ tubercle ACTION:: ______ the arm

subscapularis lesser medially rotates

Subscapularis INNERVATION : _____ and ______ nerve In brachial plexus, anterior or posterior? Which roots

upper and lower subscapular Posterior C6,7,8

TERES MINOR ORIGIN: (Anterior or posterior?) scapula,beside its ____ border INSERTION : ______ tubercle ACTION: ______ the arm INNERVATION : _____ nerve

Posterior lateral greater laterally rotates axillary

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.

tendons repetitive use shoulder supraspinatus coraco-acromial arch degenerative

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

analgesia physiotherapy steroid injections and surgery

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

extrinsic and intrinsic

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.

forearm crude; forceful within the hand itself fine

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.

three Short base thenar eminence fine

The _____ nerve innervates all the thenar muscles. Of the brachial plexus, anterior or posterior? Which roots

median Anterior C5-T1

List the thenar muscles

THENAR - opponens pollicis - abductor policis brevis - flexor policis brevis

HYPOTHENAR - _____ digiti minimi - _____ digiti minimi - _____ digiti minimi brevis -responsible for ____ eminence at the ___ of the pinky

opponens abductor flexor hypothenar base

The hypothenar is innervated by _____ nerve(____ branch) Of the brachial plexus , anterior or posterior? Which roots

ulnar deep Anterior C7,8, T1

LUMBRUCALES - _ in number -they link ___ tendon to ____ tendon

4 extensor; flexor

Each lumbrical is associated with ______

a finger

Action of lumbricales _____ at MP, _____ at IP

Flex Extend

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.

index and middle median little and ring ulnar

INTEROSSEI - _ dorsal - _ palmar -both innervated by ____ nerve(deep branch)

4 3 ulnar

Each dorsal interossei originates from the _____ and ____ surfaces of the ______ . They attach into the ____ and ____ of each finger.

lateral and medial metacarpals extensor hood proximal phalanx

Dorsal interossei Actions: _____ the fingers at the ____ joint.

Abduct MCP

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

anteriorly

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

medial or lateral metacarpal extensor hood and proximal phalanx

Palmar interossei Actions: ____ the fingers at the ____ joint.

Adducts MCP

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

Small Thin superficially hypothenar ulnar superficial

ADDUCTOR POLICIS - small or large - ______ shaped - ___ heads - _____ of the thumb - ____ nerve(_____ branch)

large triangular 2 adductor Ulnar Deep

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

radial anteriorly space deep palmar arch

Muscles Of Upper Limb 2 Flashcards

(69 cards)