Question

During expiration the diaphragm becomes 1) dome shaped 2) oblique 3) normal 4) flattened?

Answer 1

The diaphragm becomes dome shaped during the expiration process.

When it comes to diaphragm, it is a primary inspiration muscle.

It is the dome-shaped and thin sheet of muscle which inserts into lower ribs.

Though, during the exercise session, the expiration becomes the active process.

The abdominal also contract for raising the abdominal pressure.

Answer 2

Answer:

During expiration the diaphragm becomes

1) dome shaped

Explanation:

• Diaphragm is a muscular structure present between  thoracic cavity and abdomen.
• Diaphragm arise from lower part of the sternum and the vertebrae of the spine and are attached to central membranous  tendon
• In expiration the  diaphragm get relaxed and forms a Dome shaped while in inspiration that it contract.
• During  expiration the  diaphragm get relax and volume of the cavity decreases and the intrapulmonary pressure increases thats why the air is forced out of the body.