L2:functional and clinical anatomy of the shoulder

Question 1

how do limbs develop

Answer 1

as an outgrowth of the lateral wall of the embryo

Question 2

what is the shoulder joint called

Answer 2

glenohumeral joint

Question 3

3 things shoulder is made up off

Answer 3

• scapula
• clavicle
• humerus

Question 4

what is every muscle that originates from the coracoid

Answer 4

A flexor muscle

Question 5

what is every muscle that originates from the scapula

Answer 5

and extensor or abductor

Question 6

where is the humerus anatomical head

Answer 6

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

Question 7

what lies in the groove between the lesser and greater tubercle

Answer 7

long head of the bicep tendon

Question 8

where is the surgical neck

Answer 8

beneath the tubercles

Question 9

what happens often at the surgical neck

Answer 9

fractures

Question 10

what nerve runs around the cervical neck

Answer 10

axillary nerve

Question 11

what muscle does the axillary nerve supply

Answer 11

deltoid

Question 12

what is the deltoids important function

Answer 12

abducting the upper limb

Question 13

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

Answer 13

over the sergeant’s stripes

Question 14

4 major parts of the scapula

Answer 14

acromion
coracoid
glenoid cavity
spine

Question 15

common ligament to tear in shoulder

Answer 15

acromioclavicular

Question 16

what does the coracoacromial ligament do

2

Answer 16

• stabilises shoulder joint

- produces a roof for the shoulder

Question 17

3 important ligaments of the shoulder

Answer 17

• acromioclavicular
• coracoacromial
• coracoclavicular

Question 18

what joint is at the meeting of the clavicle and sternum

Answer 18

synovial joint

Question 19

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

Answer 19

humerus head is massive compared

Question 20

what ligament deepens the shoulder joint at the top

Answer 20

coracoacromial

Question 21

what surrounds the glenoid

Answer 21

the labrum

Question 22

what is the labrum

Answer 22

thick fibrocartilaginous rim surrounding glenoid cavity

Question 23

what can happen to the labrum in shoulder dislocation

Answer 23

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

Question 24

4 muscles that make up the rotator cuff

Answer 24

Subscapularis
Supraspinatus
Infraspinatus
teres minor

Question 25

wheres does the subscapularis insert

Answer 25

the head of the humerus

Question 26

what muscle is above the scapula spine

Answer 26

supraspinatus

Question 27

what muscle is below the scapula spine

Answer 27

infraspinatus

Question 28

name 4 muscles connecting UL to trunk

Answer 28

deltoid trapezius latissimus dorsi serratus anterior

Question 29

what gap does the supraspinatus travel through

Answer 29

between the coracoacromial ligament, the acromionand the humeral head

Question 30

what are painful arcs associated with

Answer 30

supraspinatus injury

Question 31

function of supraspinatus

Answer 31

abduction

Question 32

infraspinatus function

Answer 32

externally rotates humerus

Question 33

teres minor function

Answer 33

externally rotates humerus

Question 34

subscapularis function

Answer 34

internally rotates humerus