Diaphragm

1.List the sources of development of the thoracoabdominal diaphragm. Enumerate the structures passing through its major openings

2.Thoracic diaphragm

1.Nerve supply of Tongue

2.Openings in the abdominal diaphragm

3.Diaphragm

4.Name sub diaphragmatic recesses

1.Structures passing through aortic opening in the diaphragm

2.Vertebral level of inferior venacaval opening in the diaphragm

1.Assertion: Diaphragm is supplied by Phrenic nerve with a root value of C3, C4, C5

• Reason: Diaphragm develops from occipital myotomes
• a) Both A and R are true, and R is the reason for A
• b) Both A and R are true, and R is not the reason for A
• c) A is correct but R is incorrect
• d) A is incorrect but R is correct

2.The phrenic nerves

• 1) Arise from the cervical plexus roots 3, 4, 5
• 2) Gives sensory branches to the mediastinal and central diaphragmatic pleura
• 3) Enters the thorax by crossing the necks of the first ribs
• 4) Are the only motor nerves to the diaphragm
• a) 1, 2, 3
• b) 1, 3, 4
• c) 1, 2, 4
• d) 2, 3

3.The thoracic duct returns lymph from

• 1) Left half of the body below the diaphragm 2) Right half of the body below the diaphragm
• 3) Left half of the body above the diaphragmiv 4) Right half of the body above the diaphragm
• a) 1, 2, 3
• b) 1, 3, 4
• c) 1, 2, 4
• d) 2, 3