lec 3

Question 1

The intrinsic and extrinsic sphincters operate together

Answer 1

حتى الاكل بدخل جوا المعدة و ما يرجع يطلع للمريء

Question 2

Aero-phagia

Answer 2

air that is un-avoidably swallowed in the process of eating and drinking.

Question 3

Aero-phagia fate

Answer 3

1. (bleching)
2. absorbed
3. pass to colon

Question 4

Colonic bacteria

Answer 4

1. hydrogen sulfate

2. carbon dioxide, and hydrogen