HISTOLOGY
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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____ the contractions of the muscular coat
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____ the digestive glands secrete digestive juices
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____ it has many blood vessels.
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None of the above
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Detailed explanation-1: -Peristalsis is the wave of constriction caused by the circular muscles of gut pushing the food along.
Detailed explanation-2: -Smooth muscle – located in various internal structures including the digestive tract, uterus and blood vessels such as arteries. Smooth muscle is arranged in layered sheets that contract in waves along the length of the structure.
Detailed explanation-3: -Peristalsis is rythmic contraction and relaxation of muscles of alimentary canal that propely the food in downward direction.
Detailed explanation-4: -The movement of organ walls-called peristalsis-propels food and liquid through the GI tract and mixes the contents within each organ. Peristalsis looks like an ocean wave traveling through the muscle as it contracts and relaxes.