The thorax: sternum and ribs

Question 1

Composed of the manubrium, corpus sterni, and xiphoid process

Answer 1

The sternum

Question 2

On manubrium, points of articulation with left and right clavicles. Collarbones articulate medially

Answer 2

Clavicular notches

Question 3

On manubrium, central notch on superior edge of manubrium. Where the jugular artery passes through

Answer 3

Jugular notch

Question 4

On manubrium, points of articulation for costal cartilage

Answer 4

Costal notches

Question 5

Where the manubrium and sternum meet. Angle formed between fused manubrium and corpus sterni

Answer 5

Sternal angle

Question 6

Manubrium superior and xiphoid process inferior, anterior surface rough and convex, posterior surface smooth and concave

Answer 6

Orienting sternum

Question 7

Sternum, 12 ribs per side, 24 total

Answer 7

The thorax

Question 8

Ribs 1-7, connect via their own costal cartilage to the sternum, don’t share with other ribs

Answer 8

True ribs

Question 9

Ribs 8-10, share a common cartilage attachment

Answer 9

False ribs

Question 10

Ribs 11-12, do not articulate with the sternum, articulate posteriorly with T1-T12

Answer 10

Floating ribs

Question 11

Houses essential organs, useful for determining cause and manner of death, can be used to age adults

Answer 11

Ribcage functions

Question 12

Part of the rib, swollen proximal part of rib, contains two demifacets for contact with thoracic vertebrae

Answer 12

Head

Question 13

Short segment between head and tubercle on rib, constricted as you move laterally from head

Answer 13

Neck

Question 14

Point of articulation on the rib with the transverse process of thoracic vertebrae, raised rough portion on rib, point of attachment

Answer 14

Tubercle

Question 15

Body of rib, long part of the bone

Answer 15

Shaft

Question 16

Sharp curve in bone lateral to tubercle, point on the rib where it changes direction

Answer 16

Angle

Question 17

Anterior end that attaches to costal cartilage, first ten ribs connect with cartilage, flat and distinct compared to head

Answer 17

Sternal end

Question 18

Special rib. Broad, flat, tightly curved. Superior surface is rough and inferior is smooth. Wide and short

Answer 18

First rib

Question 19

Special rib. Intermediate between first and third, large tuberosity on midshaft, tight angle, elongated neck

Answer 19

Second rib

Question 20

Special rib. Shortest, single facet and no tubercle. Lacks angle. Witch’s fingernail, floating rib

Answer 20

Twelfth rib

Question 21

Made of the clavicle and scapula. Great mobility, but unstable

Answer 21

Shoulder girdle

Question 22

S shaped bone, medial end articulates with sternum. Distal articulates with scapula. Last bone to fully fuse, superior view smooth, inferior has a groove

Answer 22

Clavicle

Question 23

Part of clavicle, medial end, inferior surface. Point of attachment for costoclavicular ligament

Answer 23

Costal impression

Question 24

Part of clavicle, posterior inferior midshaft, protects neck vessels, groove on inferior view of clavicle

Answer 24

Subclavian sulcus

Question 25

Part of clavicle, lateral and posterior. Attaches ligament from scapula to clavicle, secures articulation with scapula

Answer 25

Conoid tubercle

Question 26

Medial end round, lateral end flat. Bone bows anteriorly on the medial end and posteriorly on the lateral end. Inferior surface is rougher, medially bows convex, laterally concave

Answer 26

Siding the clavicle

Question 27

Shoulder blades, anterior is smooth and posterior has a spine

Answer 27

Scapula

Question 28

Top edge of scapula, upper surface besides the bump

Answer 28

Superior border

Question 29

Edge of bone faces laterally scapula

Answer 29

Lateral border

Question 30

Medial edge of bone in scapula

Answer 30

Medial border

Question 31

Point where the lateral and medial borders of the scapula unite

Answer 31

Inferior angle

Question 32

Point where the medial and superior borders of scapula unite

Answer 32

Superior angle

Question 33

Transmits the suprascapular nerve on scapula

Answer 33

Superior notch

Question 34

Raised portion of scapula, posterior surface has a long ridge of bone that moves medial to lateral

Answer 34

Scapular spine

Question 35

Deltoid muscle attachment, anteromedial surface articulates with clavicle. Juts out, attaches to muscle. Comes around anteriorly to articulate with clavicle on the scapula

Answer 35

Acromion process

Question 36

Smooth empty space above scapula spine

Answer 36

Supraspinous fossa

Question 37

Flat smooth area below the scapula spine posteriorly

Answer 37

Infraspinous fossa

Question 38

Shallow oval concavity humeral head articulates. Looking into scapula medially on the lateral surface. Slightly concave, articulates with humerus

Answer 38

Glenoid fossa

Question 39

Lateral view of scapula, anchor for various shoulder muscles

Answer 39

Coracoid process

Question 40

Lateral view of scapula, anchor for triceps muscle, below glenoid fossa

Answer 40

Infraglenoid tubercle

Question 41

Glenoid fossa is lateral, spine posterior, inferior angle inferior

Answer 41

Siding scapula