Question

2. What is the flexible flattened muscle which helps the lungs in moving air in to and out of them
A) External intercostal muscle
B) Internal inter costal muscle
C) Diaphragm
D) Both a & b​

Answer 1

Answer:

c) ) Diaphragm

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Answer 2

Answer:

c) diaphragm

Explanation:

The diaphragm is the major muscle responsible for breathing. It is a thin, dome-shaped muscle that separates the abdominal cavity from the thoracic cavity. During inhalation, the diaphragm contracts, so that its center moves caudally (downward) and its edges move cranially (upward).