Thoracic Diaphragm

Question 1

The thoracic diaphragm is the principle muscle of _____________.

Answer 1

RESPIRATION

Question 2

What does the dome-shaped thoracic diaphragm divide?

Answer 2

THORACIC CAVITY
+
ABDOMINAL CAVITY

Question 3

The top of the diaphragm dome sits at approximately the ____TH intercostal space, during expiration.

Answer 3

4TH

Question 4

The top of the diaphragm dome sits at approximately the ____TH intercostal space, during inspiration.

Answer 4

6TH

down 5-10 cm

Question 5

Which side of the diaphragm dome sits higher than the other?

Answer 5

RIGHT SIDE HIGHER

Question 6

The diaphragm is divided into a muscular component and a _____________ component.

Answer 6

TENDINOUS

Question 7

Name the 5 inferior attachments of the thoracic diaphragm?

Answer 7

1. POSTERIOR SURFACE OF XIPHOID
2. INTERNAL SURFACES AND CC OF LOWER 6 RIBS
3. UPPER LUMBAR VERTEBRAE VIA 2 CRURA
4. MEDIAL ARCUATE LIGAMENTS
5. LATERAL ARCUATE LIGAMENTS

Question 8

The muscular fibers of the diaphragm converge radially into a strong aponeurotic tendon, named what?

Answer 8

CENTRAL TENDON

Question 9

The central tendon has a ____-__________ appearance, with a central, left and right ___________.

Answer 9

C-SHAPED
+
LEAFLET

Question 10

With contraction, the action of the diaphragm is to move ____________, flattening.

Answer 10

INFERIORLY

Question 11

As the diaphragm contracts and moves inferiorly, what happens to it?

Answer 11

FLATTENS