L2:functional and clinical anatomy of the shoulder Flashcards

1
Q

how do limbs develop

A

as an outgrowth of the lateral wall of the embryo

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2
Q

what is the shoulder joint called

A

glenohumeral joint

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3
Q

3 things shoulder is made up off

A
  • scapula
  • clavicle
  • humerus
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4
Q

what is every muscle that originates from the coracoid

A

A flexor muscle

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5
Q

what is every muscle that originates from the scapula

A

and extensor or abductor

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6
Q

where is the humerus anatomical head

A

where the epiphysis lies between the head and shaft of the humerus

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7
Q

what lies in the groove between the lesser and greater tubercle

A

long head of the bicep tendon

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8
Q

where is the surgical neck

A

beneath the tubercles

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9
Q

what happens often at the surgical neck

A

fractures

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10
Q

what nerve runs around the cervical neck

A

axillary nerve

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11
Q

what muscle does the axillary nerve supply

A

deltoid

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12
Q

what is the deltoids important function

A

abducting the upper limb

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13
Q

if the axillary nerve is cut where is paralysis and loss of sensation

A

over the sergeant’s stripes

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14
Q

4 major parts of the scapula

A

acromion
coracoid
glenoid cavity
spine

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15
Q

common ligament to tear in shoulder

A

acromioclavicular

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16
Q

what does the coracoacromial ligament do

2

A
  • stabilises shoulder joint

- produces a roof for the shoulder

17
Q

3 important ligaments of the shoulder

A
  • acromioclavicular
  • coracoacromial
  • coracoclavicular
18
Q

what joint is at the meeting of the clavicle and sternum

A

synovial joint

19
Q

comparatively how big is the humerus compared to the articulation space on the glenoid

A

humerus head is massive compared

20
Q

what ligament deepens the shoulder joint at the top

A

coracoacromial

21
Q

what surrounds the glenoid

A

the labrum

22
Q

what is the labrum

A

thick fibrocartilaginous rim surrounding glenoid cavity

23
Q

what can happen to the labrum in shoulder dislocation

A

labrum can be torn off the glenoid cavity –> can make repeated dislocations common

24
Q

4 muscles that make up the rotator cuff

A

Subscapularis
Supraspinatus
Infraspinatus
teres minor

25
Q

wheres does the subscapularis insert

A

the head of the humerus

26
Q

what muscle is above the scapula spine

A

supraspinatus

27
Q

what muscle is below the scapula spine

A

infraspinatus

28
Q

name 4 muscles connecting UL to trunk

A

deltoid
trapezius
latissimus dorsi
serratus anterior

29
Q

what gap does the supraspinatus travel through

A

between the coracoacromial ligament, the acromionand the humeral head

30
Q

what are painful arcs associated with

A

supraspinatus injury

31
Q

function of supraspinatus

A

abduction

32
Q

infraspinatus function

A

externally rotates humerus

33
Q

teres minor function

A

externally rotates humerus

34
Q

subscapularis function

A

internally rotates humerus