Food is pushed through the digestive tract by ? swallowing more food that pushes along food ingested earlier. ? beating cilia on the epithelial cells lining the lumen. ? peristaltic contractions of smooth muscle in digestive tract walls. ? contraction of skeletal muscles surrounding the digestive tract. ? the effects of gravity.
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Step 1: The digestive tract is a long, muscular tube that moves food through the body. Show more…
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Anna D.
11) Food moves along the digestive tract as a result of contractions by smooth muscle. 12) The body's automatic tendency to maintain a constant and optimal internal environment is termed homeostasis.
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Review the functions of the various gastrointestinal organs by matching the appropriate organ/anatomical component with its correct function. Then, click and arrange the organs/anatomical components in the correct order that a piece of food would encounter while traveling from the mouth to the stomach. Drag the text blocks below into their correct order. Pyloric sphincter Stomach Esophagus Lower esophageal sphincter Pharynx Upper esophageal sphincter Mouth : A ring of skeletal muscle that relaxes during swallowing to allow a bolus of food to continue forward in the GI tract. : Stores, mixes, dissolves, and continues the digestion of food, particularly of proteins. : Serves as a passageway that is common to both air and ingested food. : A ring of smooth muscle and connective tissue that helps to regulate how much chyme passes between the antrum and the duodenum. : A ring of smooth muscle that relaxes to allow the bolus of food to enter the stomach and quickly closes to reseal the junction between the esophagus and the stomach. : Moves the bolus of food to the stomach by peristaltic waves. : The beginning of the gastrointestinal tract where chewing begins and where the swallowing phase is initiated.
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