CHAPTER 21
DIGESTIVE SYSTEM
When we hear DIGESTIVE SYSTEM, the first thing that comes into our mind is FOOD! Yeah, basically it's about food but how do the food travels in our digestive system? and how do they distribute their nutrients?
FUNCTION OF DIGESTIVE SYSTEM
1. Take in food
2. Break down the food
3. Absorb nutrients
4. Eliminate waste
ENTERIC NERVOUS SYSTEM
Consist of nerve plexuses within the wall of the digestive tract.
PERITONEUM
It is the serous membrane that lines the abdominopelvic cavity and organs.
ORAL CAVITY
Includes the vestibule and oral cavity proper
>LIPS AND CHEEKS
>PALATE AND PALATINE TONSILS
>TONGUE
>TEETH
>MASTICATION
>SALIVARY GLANDS
PHARYNX
Consist of the nasopharynx, oropharynx, and laryngopharynx.
ESOPHAGUS
Connects the pharynx to the stomach.
STOMACH
Large sac between the esophagus and small intestine, lying just beneath the diaphgram.
SMALL INTESTINE
divided into duodenum, jejunum, ileum
LIVER AND GALLBLADDER
>produces bile
>stores and process nutrients
>produce blood components
PANCREAS
Abdominal gland that secretes pancreatic juice into the intestine and insulin and glucagon from the pancreatic islets into the blood stream
LARGE INTESTINE
Portion of the digestive tract extending from the small intestine to anus
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