Thoracic Cavity

Question 1

The thoracic cavity is also known as the

Answer 1

Rib cage

Question 2

The thoracic cavity is the bony structure that protects the heart and the lungs. It consists of the ____, _______, and _____________________.

Answer 2

Ribs, sternum, and upper portion of the spinal column extending from the neck to the diaphragm, not including the arms.

Question 3

The 12 pairs of ribs, which are also known as _________.

Answer 3

Costals

Question 4

The 12 pairs of ribs, costals, attach _________ to the thoracic vertebrae.

Answer 4

Posteriorly (cost means rib, and -al means pertaining to).

Question 5

The first seven pairs of ribs are called ___________, and they attach anteriorly to the sternum.

Answer 5

True ribs

Question 6

The next 3 pairs of ribs are called _____________, and they attach anteriorly to cartilage that connects them to the sternum

Answer 6

False ribs

Question 7

The last two pairs of ribs are called __________, because they are only attached posteriorly to the vertebrae but are not attached anteriorly.

Answer 7

Floating ribs

Question 8

The sternum, which is also known as the

Answer 8

Breast bone

Question 9

The sternum, breast bone, is a flat, dagger-shaped bone located in the middle of the chest. By joining with the ribs, it forms the front of the ribcage divided into 3 parts:

Answer 9

1. Manubrium
2. Body of the sternum
3. Xiphoid process

Question 10

What is the manubrium?

Answer 10

The manubrium is the bony structure that forms the upper portion of the sternum.

Question 11

What is the body of the sternum an what is it also known as?

Answer 11

The body of the sternum, also known as the gladiolus, is the bony structure that forms the middle portion of the sternum.

Question 12

The xiphoid process is the

Answer 12

structure made of cartilage that forms the lower portion of the sternum
(Xiphoid comes from the Greek word for a straight sword)