digestive sysyem

Description

parts and functions of the digestive system
Cora Amor Sánchez
Flashcards by Cora Amor Sánchez, updated more than 1 year ago
Cora Amor Sánchez
Created by Cora Amor Sánchez over 5 years ago
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Resource summary

Question Answer
DIGESTION SYSTEM The process of turning the food we eat into nutrients that can be absorbed by the body. It also moves undigested waste material out of the body.
MOUTH Is the beginig of the digestive tract. In fact digestive starts here as soon as you take the first bite of meal. Chewing breaks the food into pieces that are more easily digested, while salive mixes with the food.
SALIVARY GLANDS The salivary glands produce and secrete saliva and keeps the mpouth and the other parts of the digestive system moist.
TEETH *Premolars and molars are used to grind and crush food. *Incisors are used to cut food. *Canines are used to tear food.
PHARYNX The swallowing takes place in the pharynx as a reflex and partly involuntary control. Conects digestive system with respiratory system.
EPIGLOTIS Is a flexible flap in you throat , stops food for entering to the lungs.
OESOPHATUS Is a long muscular tube, it's normally close but opens when food is ingested, connescts the pharynx to the stomach crossing the diaphragm.
STOMACH It's muscular organ thatr is conected to the oesophagus. Recibe food from the oesophagus, it enters to the stomach an secretes acid that digested food.
LIVER Is the largest internal organ in the body. It contains hepatocytes that collect the bile secreted by the liver cells.
GALLBLADDER Is a pear-shaped structure located under the liver. Its function is to store bile.
PANCREAS Is a long narrow gland with two ducts, the ducts secrete substances into the duodenum via the ampulla of Vater.
SMALL INTESTINE Starts at the pylorus and ends at the ileocaecal valve, where it joins the large intestine. The small intestine is divided into three parts: the duodenum, jejunum and ileum.
DUODENUM The liver secretes bile and the pancreas secretes pancreatic juice into this section.
JEJUNUM AND ILEUM Form the rest of the small intestine, although there is no clear line between them.
LARGE INTESTINE Its glands secrete lubricating mucus to help substances pass through it. It is divided into several sections: the caecum, appendix, ascending colon, transverse colon, descending colon, rectum and the anus.
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