final exam: unit 3

Question 1

identify:
superior border
medial (vertebral) border
lateral (axillary) border
superior angle
inferior angle

of scapula

Answer 1

Question 2

identify:
subscapular fossa
coracoid process
acromion process
glenoid fossa (glenoid cavity)

of scapula

Answer 2

Question 3

identify:
spine of scapula
supraspinous fossa
infraspinous fossa
suprascapular notch
glenoid fossa

of scapula

Answer 3

Question 4

identify from lateral view:
glenoid fossa
spine of scapula
acromion process
coracoid process

of scapula

Answer 4

Question 5

identify:
head
anatomical neck
surgical neck
greater tubercle
lesser tubercle
intertubercular groove
deltoid tuberosity

of humerus

Answer 5

Question 6

identify:
shaft
radial groove

of humerus

Answer 6

Question 7

articular disc

Answer 7

improves joint congruency
absorbs shock

fibrocartilage

Question 8

anterior sternoclavicular ligament

Answer 8

prevents excessive retraction and elevation

Question 9

posterior sternoclavicular ligament

Answer 9

prevents excessive protraction and elevation

Question 10

interclavicular ligament

Answer 10

prevents excessive retraction and depression

Question 11

costoclavicular ligament

Answer 11

prevents excessive elevation

Question 12

acromioclavicular joint articular disc

Answer 12

articulate

Question 13

acromioclavicular ligament

Answer 13

holds acromioclavicular joint together

superior and inferior thickenings in joint capsule

Question 14

coracoclavicular ligaments

Answer 14

conoid ligament
trapezoid ligament

prevent excessive elevation of clavicle

run from inferior aspect of clavicle to coracoid process

Question 15

coracoacromial ligament/arch

Answer 15

coracoid process to acromion process- attaches scapula to scapula

forms roof of coracoacromial arch

provides stability on superior aspect of glenohumeral joint

Question 16

coracoacromial arch

Answer 16

osteoligamentous structure formed by:
acromion process
coracoacromial ligament
coracoid process

prevents superior translation of humerus

Question 17

glenoid labrum

Answer 17

fibrocartilaginous rim around the perimeter of glenoid cavity

deepens socket

Question 18

anterior glenohumeral ligaments

Answer 18

fibrous bands run from glenoid to anatomical neck

3 distinct bands:
superior
middle
inferior

prevent humerus from displacing anteriorly

Question 19

coracohumeral ligament

Answer 19

provides anterior stability to glenohumeral joint

runs from lateral aspect of coracoid process to greater tubercle of the humerus

Question 20

transverse humeral ligament

Answer 20

holds long head of biceps tendon in place

runs from greater to lesser tubercles

Question 21

motions of glenohumeral joint

Answer 21

Question 22

why is scapulothoracic joint not considered a true joint?

Answer 22

does not have joint capsule or ligaments

Question 23

motions of scapulothoracic joint

Answer 23

Question 24

what is primary function of a bursa?

Answer 24

sack of fluid that helps prevent friction

Question 25

identify: radial head radial neck radial tuberosity ulnar notch styloid process of radius

Answer 25

Question 26

identify: olecranon prcoess trochlear notch coronoid process radial notch ulnar head styloid process of ulna

Answer 26

Question 27

elbow and forearm motions

Answer 27

Question 28

humeroulnar joint

Answer 28

humerus: trochlea ulna: trochlear notch diarthroidal true hinge joint flexion/extension

Question 29

humeroradial joint

Answer 29

humerus: capitulum radius: radial head diarthoidal semi ball and socket flexion/extension pronation/supination

Question 30

proximal radioulnar joint

Answer 30

radius: radial head ulna: radial notch diarthoidal pivot joint pronation/supination

Question 31

radioulnar syndesmosis

Answer 31

longitudinal articulation between shafts of radius and ulna amphiarthoidal syndesmosis pronation/supination

Question 32

distal radioulnar joint

Answer 32

radius: ulnar notch ulna: ulnar head diarthroidal pivot joints pronation/supination

Question 33

annular ligament

Answer 33

anterior to posterior ulna encircles radial head holds radial head within radial notch of ulna stabilizes radial head to ulna while still allowing rotation of radial head

Question 34

interosseous membrane

Answer 34

oblique ligamentous tissue holding radius and ulna together

Question 35

radial collateral ligament

Answer 35

lateral epicondyle annular ligament does not attach directly to radius lateral elbow restraint resists varus stress

Question 36

ulnar collateral ligament

Answer 36

3 bands/bundles: anterior- strongest posterior transverse medial elbow restraint resist valgus stress

Question 37

define varus and valgus

Answer 37

varus: distal segment moves towards midline stresses lateral elbow valgus: distal segment moves away from midline stresses medial elbow

Question 38

what nerve is superficial just posterior to medial epicondyle?

Answer 38

ulnar nerve

Question 39

identify: carpal bones

Answer 39

Question 40

identify: metacarpals phalanges/phalanx

Answer 40

Question 41

compare and contrast insertions and actions of flexor digitorum profundus and flexor digitorum superficialis

Answer 41

flexor digitorum superficialis: flexes PIP joints inserts on middle phalanges flexor digitorum profundus: flexes PIP and DIP joints inserts on distal phalanges

Question 42

what nerve passes through carpal tunnel?

Answer 42

median nerve

Question 43

5 terminal nerve branches of brachial plexus ad muscle groups innervated

Answer 43

axillary: deltoid teres minor musculocutaneous: biceps brachii brachialis coracobrachialis radial: triceps brachii posterior arm and forearm muscles median: anterior forearm muscles thenar muscles ulnar: medial forearm muscles intrinsic hand muscles