Chapter 7: The Ribs Flashcards
How many pairs of ribs does a human have?
12
What two types of ribs make up the 12 pairs?
True & False Ribs
Which pairs are the true ribs? and what do they consist of?
The first 7 pairs; vertebrosternal
Where are the true (vertebrosternal) ribs located?
In the sternum
Which pairs are the false ribs? and what do they consist of?
Vertebrochondral: first 3 pairs under the sternum.
Floating ribs: last 2 pairs.
What are the 4 parts of a true rib?
- Shaft
- Head
- Tubercle
- Costal Cartilage
What is the shaft?
The main portion; long and slender.
What is the head?
Posterior end; articulates with vertebrae
What is the tubercle?
Articulates with vertebrae.
What is the costal cartilage?
Hyaline cartilage; connects the ribs to the sternum.
What are the 3 parts of the sternum?
- Manubrium
- Body
- Xiphoid Process
What does the manubrium connect to?
The clavicles (collarbone)
What does the sternum’s body connect to?
The true ribs.
What part of the sternum is the xiphoid process located?
The end
