Sternum Flashcards Preview

Spinal Anatomy I - Exam 3 > Sternum > Flashcards

Flashcards in Sternum Deck (10):
1

What is the name given to the segments of the sternum?

sternabrae (for sternal bodies)

2

How many primary centers of ossification appear in the manubrium?

1-3 centers

3

How many primary centers of ossification appear in the corpus sterni?

typically 6

4

What are the locations of the primary centers of ossification in the corpus sterni?

one in each of the first two sternabrae and bilateral centers in the last two sternabrae

5

Primary centers of ossification for the sternum first appear at what age?

fifth fetal month

6

In what part of the sternum will a secondary center of ossification appear?

the xiphoid process

7

When does the xiphoid process first demonstrate a center of ossification?

sometime during or after 3 years old

8

When will the synchondroses between sternabrae begin to ossify?

during puberty

9

Synchondroses of the corpus sterni will fuse together beginning with which sternabrae?

- the lower sternabrae fuse first
- they ossify in a caudal to cranial direction

10

What is the ratio of primary:secondary centers of ossification for the sternum?

6:1

Decks in Spinal Anatomy I - Exam 3 Class (94):