A&P Chap. 8 Ribs

Which ribs are the true ribs?

ribs 1-7

Which rubs are the false ribs?

ribs 8-12

Where does the inferior articular facet join ?

superior articular fact of vertebral below

Why are rubs 11 and 12 called floating ribs?

-Because there is no cartilaginous connection to the sternum or to any of the higher costal cartilages -they are embedded in the lumbar muscle

What are the 8 features of ribs 2-11?

1.Head 2. Superior & inferior articular facet for vertebral bodies 3. Neck 4. Tubercle 5. Articular facet for transverse process 6. Angle 7. Costal groove 8. Shaft

Which ribs are the floating ribs? (not attached to sternum)

11-12

How many pairs of ribs do we have ?

12

Why are ribs 1-7 called true ribs?

Because each has its own costal cartilage connection it to the sternum

Why are ribs 8-12 called false ribs?

Because they lack independent cartilaginous connections to the sternum

How does the anterior end attach?

By a long strip of hyaline cartilage called coastal cartilage

What is the purpose of the inferior margin with costal grooves ?

For nerves and vessels

What are the 4 anatomical features of the 1st rib ?

Head Neck Tubercle Shaft

What connects the proximal head and tubercle of the rib?

Neck

Where does the anterior end of the rib attach ?

Sternum

Where does the posterior end of the rib attach ?

Vertebral column

Where does the superior articular facet join ?

inferior costal facet of the vertebral above

What does the tubercle of the rib connect with ?

transverse process

What does does head of the rib connect with?

vertebrae