Which of the Following Actions Constitutes the Voluntary Stage of Swallowing

question 64

Multiple Choice

Which of the following actions constitutes the voluntary stage of swallowing?

• A) The tongue forces the bolus to move into the pharynx.
• B) The entry of the bolus triggers the chemoreceptors in the pharynx.
• C) The action potentials from the deglutination center trigger the elevation of the soft palate and the uvula.
• D) The epiglottis closes to prevent the passage of the bolus into the larynx.
• E) The upper esophageal sphincter relaxes to allow the entry of the bolus into the esophagus.

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Definitions:

Flat Bones

Bones characterized by their thin, flattened shape, providing protection to internal organs and serving as areas for muscle attachment, examples include the skull, ribs, and pelvis.

Fibrous Connective Tissue

A connective tissue type that is composed of parallel bundles of collagen fibers, providing strength, support, and flexibility to various structures of the body.

Hyaline Cartilage

A type of strong, flexible connective tissue found in various parts of the body such as the joints, nose, and trachea.

Sinuses

Air-filled cavities located in the bones of the skull, which help moisten, warm, and filter the air we breathe.