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Sagot :
The muscle contraction mechanism that moves an egg down the fallopian tube toward the uterus is the same mechanism that moves food from the esophagus to the stomach.
The food we eat is swallowed down by the esophagus. The food is moved down by the muscular contractions of the layers of the esophagus. These movements are called peristaltic movements or peristalsis. These peristaltic waves also help in the movement of food down the stomach into the intestine and then to the anus.
The ovum is released by the ovaries and is captured by finger-like projections of the oviduct. The fallopian tube or the oviduct allows fertilization in its ampullary region by the sperm. The mucosal lining of the fallopian tube releases some secretions into it for the nourishment of egg and sperm. These secretions include glucose, bicarbonate, calcium, sodium, chloride, and proteins. The mucosal lining has cilia which aid in the movement of a fertilized egg, called a zygote, toward the lumen of the uterus.
The distance covered by the zygote toward the lumen is dependent upon the peristalsis of the fallopian tube. Similarly, the food moved down the esophagus from the mouth to the stomach or anus is dependent upon the peristalsis of the esophagus and stomach linings.
To know more about muscle contractions stomach and intestine, refer to the following link:
https://brainly.com/question/13051663
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