Question

What is the forward movement of materials along the length of the digestive tract called?

Answer 1

Food is moved through the digestive tract by a sequence of wave-like muscle contractions called peristalsis.

What is digestive tract?

• The digestive system of the human body is made up of the gastrointestinal tract and additional digestive organs (the tongue, salivary glands, pancreas, liver, and gallbladder).
• In order for food to be absorbed and incorporated into the body, it must first be broken down into smaller and smaller components during digestion.
• Cephalic, gastric, and intestine phases make up the three stages of the digestive process.
• Gastric gland secretions in reaction to the sight and smell of food start the initial stage of digestion, known as the cephalic phase.

What is peristalsis?

• Peristalsis is the contraction of the muscles. is the contraction and relaxation of radially symmetric muscles that travels anterogradely down a tube in the form of a wave.
• In the lining of the gut, a simultaneous contraction of the longitudinal muscle and relaxation of the circular muscle is followed by a coordinated contraction of involuntary circular muscles known as peristalsis.

Learn more about peristalsis here:

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