Diaphragm

Question 1

What two cavities does the diaphragm separate?

Answer 1

Thorax and Abdomen

Question 2

Which dome of the diaphragm is higher than the other?

Answer 2

Right

Question 3

What are the two parts of the diaphragm?

Answer 3

Muscular part and the central tendon

Question 4

What are the origins for the muscular part of the diaphragm?

Answer 4

1) Xiphoid Process
2) Lower 6 Costal Cartilages
3) L1-3 and themedial and lateral arcuate ligaments

Question 5

What is the insertion point of the diaphragm?

Answer 5

The Central Tendon

Question 6

At what vertebral level is the caval opening?

Answer 6

T8

Question 7

What travels through the caval opening?

Answer 7

1) Inferior Vena Cava

2) Right Phrenic Nerve

Question 8

Which structure is firmly adhered to the caval opening?

Answer 8

Inferior Vena Cava

Question 9

What vertebral level is the esophageal hiatus found?

Answer 9

T10

Question 10

T/F: The esophagus is firmly adhered to the diaphragm at eh esophageal opening.

Answer 10

False. It is not adhered at all so it can slide around

Question 11

What travels through the esophageal hiatus?

Answer 11

1) Esophagus,

2) anterior and posterior vagal trunks

Question 12

At what level does the aortic hiatus lie?

Answer 12

T12

Question 13

What is transited through the aortic hiatus?

Answer 13

1) Aorta
2) Thoracic Duct
3) Azygos Vein

Question 14

What is the blood supply to the diaphragm as eh whole?

Answer 14

1) Musculophrenic Artery
2) Paericardiacophrenic Artery
3) Superior Phrenic Artery
4) Inferiro Phrenic Artery

Question 15

Which artery supplies the central tendon of the diaphragm?

Answer 15

Pericadiacophrenic artery

Question 16

What is the innervation of the diaphragm?

Answer 16

1) Phrenic Nerve

2) Intercostal Neves

Question 17

An injury to what spinal levels would cause paralysis to the diaphragm?

Answer 17

C3, C4, C5 (origin of the Phrenic Nerve)

Question 18

What is the clinical condition where teh stomach begins to pass through the esophageal hiatus?

Answer 18

Hiatal Hernia

Question 19

What age does the hiatal hernia usually present?

Answer 19

After age 50

Question 20

Whet is a spasmodic contraction of the diaphragm?

Answer 20

Hiccups

Question 21

In general, what is the cause of hiccups?

Answer 21

Irritation of the phrenic nerve