Bony Thorax

Bony Thorax is also know as the

Thoracic cage

The function of the Thoracic cage is to

protect the heart and lungs

The thoracic cage is made up of the

sternum and ribs

What is the formal word for breastbone?

Sternum

Top portion of the breastbone

manubrium

Middle portion of breastbone

the body

Bottom portion of breastbone

xiphoid process

Intercostal space between ribs are filled with

intercostal muscles used for breathing

How many true ribs are there?

7 pairs

The _______ ribs articulate directly with the sternum by hyaline cartilage.

true

How many false ribs are there?

5 pairs

The ____ ribs articulate indirectly or not at all with the sternum.

false

How many floating ribs are there?

2 pairs

Floating ribs attach only to the _______ NOT the sternum.

vertebrae