Used mainly in medical or scientific contexts; not common in everyday conversation.

Technical Jargon

Refers to a bodily function, so it's often discussed in health and biology topics.

Physical Process

Describes an invisible action within the body that you cannot see or feel directly.

Internal Movement

 down which it must plunge to reach the stomach. Nerves in the surrounding esophageal tissue sense the bolus's presence and trigger peristalsis, a series of defined muscular contractions. That propels the food into the stomach, where it's left at the mercy of the muscular stomach walls,

Peristalsis