Sternum

Question 1

Manubrium

Answer 1

most massive, thickest and squarest of three main sternal elements. Superior most element and widest part.

Question 2

Clavicular notches

Answer 2

occupy the superior corners of the sternum. Where left and right clavicle joins.

Question 3

Jugular (suprasternal) notch

Answer 3

midline notch on the superior border of the manubrium

Question 4

Costal notches

Answer 4

occupy both sides of the manubrium inferior to the clavicular notches, where first ribs attach

Question 5

Corpus sterni

Answer 5

central part, body or blade of the sternum

Question 6

Sternal angle

Answer 6

is the angle formed between the fused manubrium and the corpus sterni

Question 7

Lines of fusion

Answer 7

line between sternebrae. Pass horizontally through the right and left costal notches for ribs 3-5

Question 8

Xiphoid process

Answer 8

inferior tip of the sternum. Fused with corpus sterni in older adults.

Question 9

Siding manubrium or corpus sterni

Answer 9

noting that the anterior surface is rougher and more convex than smooth, gently concave posterior surface