L03 - Shoulder Anatomy

Question 1

label the main skeletal components of the shoulder

what are the main joints here

what makes up pectoral girdle

pto

Answer 1

----
clavical 
humerus
scapula
pectoral girdle
coracoid
acromion
intertubercular sulcus / bicipital groove
greater tubercle
lesser tubercle
glenohumeral joint
acromioclavicular joint

Question 2

ligaments of the shoulder
pto , labelllll

which one has superior, middle and inferior

which one provides support for the head of the humerus and prevents superior dislocation

Answer 2

acromioclavicular
coracoclavicular
coracoacromial

Question 3

coracoclavicular
—– what is it what does it do

coracoacromial
—– what is it what does it do

Question 4

glenohumeral joint

label diagram
also what does it allow for

Question 5

abduction of the arm

what muscle(s) allow this
what is origin and insertion

what nerve supplies

what do the different fibres do-

Question 6

deltoid muscles

what does it do – different parts of it
origin and insertion

Answer 6

–

Question 7

what performs adduction of the arm

label diagram

Question 8

what action of the arm do latissimus dorsi and pec major do?? label

Question 9

in adduction and abduction of the arm, what else can help accomodate the movement? and what facilitates this

Answer 9

–

Question 10

what muscles flex the arm?

label them

Question 11

label

short and long heads of the biceps
coracobrachialis

what do these muscles do also what else helps this action

Question 12

what muscles extends the arm? label on diagram

what do muscles near it do

Question 13

why is the glenohumeral joint unstable?

what type of dislocation is the most frequent and why

what factors increase stability? – list

Question 14

what does the coracoacromial arch do?

glenohumeral joint?

glenoid labrum?

imagine it then label it

Question 15

what are there origins of the long head of biceps and triceps? label

tendons of the rotator cuff muscles– where do they insert, fuse

Question 16

rotator cuff muscles

which ones are there

where isnt covered

label

what is the function of each of them and or/ins

Question 17

rotator cuff muscles

find
supraspinatus
infraspinatus
subscapularis
teres minor

what is the origin and insertion of these muscles?
label, function

Question 18

what is teres major, where is it what does it do

what is the most common rotator cuff injury and why does this occur

Question 19

supraspinatus impingement
what is it
why does this happen, who commonly gets it

Question 20

what is the blood supply to rotator cuff muscles, from where
what are the branches called
label diagram

Question 21

sublavian
axillary
suprascapular
subscapular
dorsal scapula
thyrocervical trunk

label them
what do they supply

Question 22

what is the nerve supply to the shoulder from? which bit

where is the nerve supply located

what supplies:
supraspinatus and infraspinatus
deltoid and teres minor
triceps brachii
subscapularis, teres major
latissimus dorsi

Question 23

nerve supply of shoulder
what nerves are involved
what cords supplies shoulder
from this, what branches are there

Question 24

posterior cord (and extra one)

what does axial and radial nerve supply
upper and lower subscapular nerves
suprascapular nerves
thoracodorsal nerves

Question 25

quadrangular space
what are the borders and label surrounding structures on diagram
what travels through this and what does it do

Question 26

lateral cord

what does the musculocuntaneous nerve supply
lateral pectoral nerve

label

Question 27

lateral cord
what are the branches of this

what supplies pec major and the arm flexors?

Question 28

medial cord

what does medial pectoral nerve supply

Question 29

mediial cord

what is supplies pec major, minor, and cutaneous nerve to arm and forearm