Skeletal Anatomy: Thoracic Cage Flashcards
1
Q
What are true ribs?
A
- Ribs 1-7
- Direct connection to sternum by INDIVIDUAL costal cartilages
2
Q
What are false ribs?
A
- Ribs 8-12
- Lack a direct connection to the sternum
- Ribs 8-10 are connected to the sternum by shared costal cartilages
3
Q
What are floating/vertebral ribs?
A
- Ribs 11-12
- Have no connection with the sternum
- Attached only to vertebrae and muscles of body wall
4
Q
What are costal cartilages?
A
Costal cartilages connect ribs to the sternum, either individually or in groups
5
Q
What is the sternum?
A
- Breastbone
- Flat bone
- Forms anterior midline of thoracic wall
- Three distinct regions that fuse during adulthood
6
Q
What are the three distinct regions of the sternum?
A
Manubrium, body, xiphoid process
7
Q
Which portion of the sternum are individual costal cartilages of ribs 2-7 attached to?
A
Body
8
Q
What does the manubrium articulate with?
A
Clavicles and costal cartilages if first pair of ribs
9
Q
What are the different kinds of ribs?
A
True ribs, false ribs, floating/vertebral ribs
