Caval opening of diaphragm

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MCQ 141

Q. Which of the following passes through caval opening of diaphragm ?

a. Right phrenic nerve

b. Left phrenic nerve

c. Azygous vein

d. Thoracic duct

ANSWER:

Answer : A - Right phrenic nerve. (Caval opening is at T8 level)

Left phrenic nerve directly pierces the diaphragm

Azygous and Thoracic duct accompany Aorta via opening at T12 level.

Oesophageal opening is at T10 level

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