Question

5. When the diaphragm contracts (is pulled downward), _______ occurs.
Inhalation
Exhalation
Respiration
A hiccup

Answer 1

When the diaphragm contracts (is pulled downward), Inhalation occurs.

Diaphragm:

• The main muscle used for breathing is the diaphragm, which is situated underneath the lungs.
• It is a large, dome-shaped muscle that frequently contracts unconsciously and regularly.
• The diaphragm flattens and tightens during inhalation, and the chest cavity widens.
• In the respiratory system, the diaphragm is essential.
• Your diaphragm flattens and tightens as you inhale, sliding down toward your abdomen.
• Your chest can expand (grow bigger) and draw in air as a result of this movement, which causes a vacuum in your chest.
• The diaphragm flattens and tightens during inhalation, and the chest cavity widens.
• A vacuum is produced by the contraction, drawing air into the lungs.
• The diaphragm relaxes and assumes its dome-like form during exhalation, forcing air from the lungs.

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