Scapula

Question 1

Scapula

Answer 1

large, flat, triangular bone with two basic surfaces: posterior and costal

Question 2

superior (cranial) boarder

Answer 2

shortest and most irregular border

Question 3

scapular notch (or foramen)

Answer 3

is a variable feature on the superior border

the semicircular notch is formed partly by the base of the coracoid process

Question 4

coracoid process

Answer 4

juts anteriorly and superolaterally from the superior border of the scalar
finger-like blunt rugose projection

Question 5

subscapular fossa

Answer 5

the shallow concavity that dominates the anterior surface of the scapula

Question 6

oblique ridges

Answer 6

cross the subscapular fossa from superolateral to inferomedial

Question 7

lateral (axillary) boarder

Answer 7

the anteroposeteiorly thickest boarder

usually concave

Question 8

glenoid cavity (glenoid fossa)

Answer 8

shallow, vertically elongate concavity that receives the head of the humerus
the shallowness of this joint allows great mobility

Question 9

supraglenoid tubercle

Answer 9

sits adjacent to the superior edge of the glenoid cavity, the base of the coracoid

Question 10

infraglenoid tubercle

Answer 10

sits just adjacent to the inferior edge of the glenoid cavity

Question 11

scapula neck

Answer 11

slightly constricted region just medial to the glenoid fossa

Question 12

medial (veterbral) boarder

Answer 12

is the straightest, longest, and thinnest border

Question 13

scapular spine

Answer 13

dominates the posterior surface of the scapula
passes mediolaterally across this surface, merging medially with the vertebral boarder and projecting laterally at the acromion process

Question 14

acromion (acromion process)

Answer 14

lateral projection of the scapular spine

its cranial surface is very rough

Question 15

supraspinous fossa

Answer 15

large, mediolaterally elongate hollowing superior to the base of the spine

Question 16

infaspinous fossa

Answer 16

is the hollowing inferior to the scapular spine

extensive, weak concave area

Question 17

superior angle

Answer 17

is where the superior and medial (vertebral) boarders intersect

Question 18

inferior angle

Answer 18

where the vertebral (medial) and axillary (lateral) boarders intersect

Question 19

Siding: isolated glenoid

Answer 19

the fossa is tear drop-shaped with its blunt end inferior

When correctly orientated, the anterior edge has a broad notch in it

Question 20

Siding: isolated acromion

Answer 20

the inferior surface is concave and is smoother than the superior
clavicular facet is placed anteriormedially relative to the tip

Question 21

Siding: isolated vertebral boarder

Answer 21

the anterior surface is concave and the posterior is convex

the oblique ridges run from superolateral to inferomedial (parallel to the scapular spine)

Question 22

Siding: isolated inferior angle

Answer 22

anterior surface if concave, while the postural is convex

the thickest boarder is lateral (axillary)

Question 23

Siding: isolated coracoid

Answer 23

the smooth surface is inferior, the rough superior
the anterior boarder is longer
the hollow on the inferior surface faces the glenoid area (posteroinferiorly)

Question 24

Siding: isolated spine

Answer 24

the spine thins medially (vertebrally) and thickens toward the acromion
the inferior boarder has a tubercle that points inferiorly
adjacent to the spine the infraspinous fossa is most deeply excavated medially
the supraspinous fossa is most deeply excavated laterally