Upper Limb

Question 1

What side of the pectoral girdle ring is open? What two movements does it allow for?

Answer 1

open posteriorly

allows mobility & independent motion

Question 2

How many articulations are between pectoral girdle and axial skeleton?

Answer 2

one at the sternoclavicular joint

Question 3

What muscles is the pectoral girdle stabilized by>

Answer 3

axio-appendicular muscles

Question 4

Which side of the clavicle is convex vs concave?

Answer 4

convex medially

concave laterally

Question 5

What does the sternal end of the clavicle articulate with and what joint does this form?

Answer 5

articulates with the manubrium and creates the sternoclavicular joint

Question 6

What does the acromial end of the clavicle articulate with and what joint does this form?

Answer 6

articulates with scapula acromion process and creates the acromioclavicular joint

Question 7

the clavicle suspends the scapula at what feature

Answer 7

coracoid process

Question 8

what does the clavicle allow the scapula to glide on and what joint does this create?

Answer 8

allows the scapula to glide on thoracic wall; creates the scapulothoracic joint

Question 9

What happens to the clavicle when you fall on an outstretched hand

Answer 9

the clavicle is the weak point in transmission of force through arm (after fall) and why its frequently fractured

Question 10

what ligament covers the suprascapular notch

Answer 10

superior transverse scapular ligament

Question 11

what are the three angles of the scapula

Answer 11

superior, lateral, and inferior

Question 12

what are the three fossa’s of the scapula

Answer 12

supraspinous, infraspinous, and subscapular

Question 13

what is the feature of the lateral scapula that holds the humeral head

Answer 13

glenoid fossa

Question 14

what are the 3 pairs of scapular movements

Answer 14

elevation/depression
protraction/retraction
upward/downward rotation

Question 15

what scapular ligament is the center of balance

Answer 15

coracoclavicular ligament

Question 16

does the scapula attach to the axial skeleton

Answer 16

no, only glides on the thoracic wall

Question 17

what is the longest bone of the upper limb

Answer 17

humerus

Question 18

where is the anatomical head of the humerus located

Answer 18

between the head and tubercles

Question 19

where is the surgical neck of the humerus located

Answer 19

distal to tubercles

Question 20

which location on the humerus is where its usually fractured

Answer 20

surgical neck

Question 21

which directions do the greater and lesser tubercles project

Answer 21

greater projects laterally

lesser projects anteriorly

Question 22

what humeral feature protects the long head of biceps

Answer 22

intertubercular sulcus (bicipital groove)

Question 23

what humeral feature separates the medial and lateral head of triceps

Answer 23

radial groove

Question 24

what nerve & artery are within the humeral radial groove

Answer 24

radial nerve

profundal brachii artery

Question 25

what humeral feature is located between the epicondyles

Answer 25

condyle

Question 26

what two surfaces and three depressions are located on the humeral condyle

Answer 26

surfaces- capitulum and trochlea | depressions- radial, coronoid, and olecranon fossas

Question 27

what side of the humeral condyle is the capitulum located and what does it articulate with

Answer 27

lateral; articulates with head of radius

Question 28

what side of the humeral condyle is the trochlea located and what does it articulate with

Answer 28

medial; articulates with trochlear notch of ulna

Question 29

where is the radial fossa located and what does it articulate with

Answer 29

anterior & above capitulum | radial head

Question 30

where is the coronoid fossa located and what does it articulate with

Answer 30

anterior and above trochlea | coronoid process of ulna

Question 31

where is the olecranon fossa located and what does it articulate with

Answer 31

posterior and above trochlea | olecranon of ulna

Question 32

what two things does the ulna articulate with

Answer 32

trochlea and radius

Question 33

is the ulna medial or lateral i

Answer 33

medial

Question 34

what two features of the ulna form the trochlear notch

Answer 34

olecranon and coronoid process

Question 35

what muscle attaches to the ulnar tuberosity

Answer 35

brachialis

Question 36

what two features are inferior to the ulnar radial notch

Answer 36

supinator crest and fossa

Question 37

what is the significance of the radial notch

Answer 37

important for radius to spin during supination and pronation

Question 38

what direction is the styloid process on the distal ulna

Answer 38

posteromedial

Question 39

does the ulna articulate with the wrist

Answer 39

no

Question 40

what makes up the two sides of the forearm interosseous membrane

Answer 40

lateral side of ulna and medial side of radius

Question 41

what two things does the radius articulate with

Answer 41

capitulum and ulna

Question 42

what two things does the radial head articulate with

Answer 42

has a concave surface for capitulum and peripherial lip for radial notch

Question 43

what muscle attaches to the radial tuberosity

Answer 43

biceps brachii (tuberosity projects anteromedial)

Question 44

is radius medial or lateral

Answer 44

lateral

Question 45

what is the purpose of the posterior dorsal tubercle of the radius

Answer 45

it holds the tendons of the forearm muscles

Question 46

Is the radius styloid process medial or lateral

Answer 46

lateral

Question 47

what does the medial ulnar notch of the radius articulate with

Answer 47

head of ulna

Question 48

describe the convex and concave nature of the carpal bones

Answer 48

convex posterior row of bones and concave anterior row of bones

Question 49

what is the proximal row of bones lateral to medial

Answer 49

scaphoid, lunate, triquetrum, pisiform

Question 50

what two bones of the proximal row of carpal bones are stacked on each other

Answer 50

pisiform is anterior to triquetrum