Anatomy of the Shoulder and Elbow

Question 1

name the dorsal muscles involved in the upper limb

Answer 1

trapezius
levator scapulae
rhomboids
latissimus dorsi

Question 2

describe the attachments and fucntions of seratus anterior

Answer 2

ribs 1-8
medial border of scapula
protracts and stabilised pectoral girdle

Question 3

functions of the clavicle

Answer 3

strut to support the shoulder

protects the brachial plexus and vessels

Question 4

what muscles attach to the clavicle?

Answer 4

trapezius
deltoid
pec major
subclavius
SCM
sternohyoid

Question 5

name the ligaments involved in the shoulder

Answer 5

acromioclavicular
coraco-acromial
coraco-clavicular
SGHL
IGHL
MGHL

Question 6

describe the labrum

Answer 6

fibrocartilaginous
elevates the glenoid edge
doubles the glenoid depth and increases the surface area
acts as a chock block limiting glenohumeral translation

Question 7

what fracture may injury the axillary nerve?

Answer 7

surgical neck of humerus

Question 8

shoulder dislocation could injury which nerve?

Answer 8

axillary

Question 9

effects of axillary nerve injury

Answer 9

weakness of deltoid

sensory loss in badge area

Question 10

flexion of the arm, muscles

Answer 10

pec major
coracobrachialis
biceps brachi
deltoid ant

Question 11

extension of the arm, muscles

Answer 11

teres major
lat dorsi
deltoid post

Question 12

abduction of the arm, muscles

Answer 12

deltoid middle

supraspinatus

Question 13

adduction of the arm, muscles

Answer 13

pect major

latissimus dorsi

Question 14

medial rotation of the arm, muscles

Answer 14

teres major

subscapularis

Question 15

lateral rotation of the arm, muscles

Answer 15

teres minor

infraspinatus

Question 16

ligaments of the elbow

Answer 16

ulnar collateral

radial collateral

Question 17

where does the ulnar collateral attach?

Answer 17

medial epicondyle

cornoid process and olecranon

Question 18

where does the radial collateral attach?

Answer 18

lateral epicondyle

blends with annular ligament

Question 19

which muscles flex the elbow?

Answer 19

brachialis
biceps brachi
brachioradialis

Question 20

what extends the elbow?

Answer 20

triceps brachi
anconeus
gravity

Question 21

which kind of joint are the prox and distal radioulnar?

Answer 21

pivot

Question 22

what kind of joint is the middle radioulnar?

Answer 22

syndesmosis - fibrous

Question 23

movements at the radioulnar joints?

Answer 23

pronation and supination

Question 24

which muscles allow pronation of the forearm?

Answer 24

pronator quadratus
pronator teres
gravity

Question 25

which muscles allow supination of the forearm?

Answer 25

biceps (powerful)

supinator

Question 26

what muscles move the scapula?

Answer 26

trapezius
levator scapulae
rhomboids
serratus anterior
pectoralis minor

Question 27

what causes winging of the scapula?

Answer 27

weakness of serratus anterior

long thoracic nerve