Question

Give the role of the following:
a)Villi b) Epiglottis c) C-shaped rings of cartilage in trachea
d) Peristalsis.

Answer 1

Answer:

Villi - The Function of Villi in the Small Intestine. Background information: The structure of the small intestine is designed for absorption of nutrients. The inside of the small intestine is lined with villi that absorb nutrients from the liquid mixture called chyme produced in the stomach from the food we eat.

Epiglottis - The main function of the epiglottis is to prevent foods and drinks from falling down the airway. The epiglottis is located at the entrance of the larynx. The opening between the vocal folds is known as glottis and the epiglottis works as a tight seal on the glottis.

C-shaped rings of cartilage in trachea- The C-shaped cartilaginous rings allow the trachea to collapse slightly at its opening, so food can pass down the esophagus after swallowing. The epiglottis closes the opening to the larynx during swallowing to prevent swallowed matter from entering the trachea.

Peristalsis - Peristalsis is a series of wave-like muscle contractions that moves food to different processing stations in the digestive tract. ... The strong wave-like motions of the smooth muscle in the esophagus carry the food to the stomach, where it is churned into a liquid mixture called chyme.

Answer 2

A) it has capillaries in it which help absorb food and it also increases surface are
B) it prevents food from entering into wind pipe
C)it prevents trachea from collapsing
D)it is the patter ( rhythm ) in which food travels ( as the organs contact and relax it helps to digest food efficiently
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