Question

During the valsalva's maneuver, what part of the larynx closes to increase intra-abdominal pressure, such as to help with defecation?

Answer 1

During the valsalva's maneuver, glottis is the part of the larynx closes to increase intra-abdominal pressure, such as to help with defecation

The glottis is a slit-like opening on floor of the pharynx, is called valve that can controls airflow in and out from the respiratory passages. The glottis may opens directly into the boxlike larynx. This voice box is occurs in all the amphibians but is anatomically most of the complex in frogs.

The larynx, can commonly called the voice box or glottis, is the passageway for the air between the pharynx and above and the trachea below. It extends from the fourth  the sixth vertebral levels.

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