The GI has three components

Consist of the liver, pancreas, gallbladder, salivary glands, etc.

The GI system significant impacts on overall health and quality of life

The salivary glands are rich in

Saliva is 99.5% water

Digestive enzyme which initiates carbohydrate digestion

Kills certain types of bacteria

Salivary glands consist of :

The pharynx circular muscles help push food downward towards the esophagus

The pharynx has how many parts?

passageway from back of nose and throat to the esophagus

Longitudinal muscles lift the walls of the _____ during swallowing

Responsible for passing food from pharynx to stomach

Layers of the Esophagus

outermost layer; collagen - gives structure/strength

propel the food down the esophagus

where nerve cells are found

secreting substances that aid in lubrication

The upper and lower esophageal sphincter have the same functions

role of the upper and lower esophageal sphincters (round muscles)

Receives ingested foods and liquids and initiates digestion ;

located in the left upper quadrant of the abdominopelvic cavity

Expands and accounts for the food we eat

Turning and contracts 3 times

taper off/separate stomach and small intestine

beginning part of small intestine

secrete mucus for protection of the mucosae from the digestive secretion

Gastric juices convert food into

stimulates gastric juice secretion via parasympathetic nerve impulses, stomach stretches

when chyme passes into the duodenum, it will release ________ and ______ to reduce motility of the stomach and gastric juice scretion

Pepsinogen converts into _____ in the presence of HCL to break down proteins into peptides in the stomach

Chief enzyme in stomach

Intrinsic factor is also part of the gastric juices to aid with B12 absorption in the _______

infants have _____ for milk digestion

with the exception of water, minerals, some drugs and alcohol, _____ absorption occurs in the stomach

where does most absorption take place

small intestine consist of

which part is 20 ft long

where does digestion slow down so absorption can take place

there are different types of digestion that happens

most of our water is absorbed in the

the appendix has no digestive function only immune defense

The colon has how many parts

sigmoid colon aka

major function of the ______ is to absorb water and to process waste (feces)

chyme residue in the large intestine contain water, minerals, bacteria, and substances which did not digest

intestinal bacteria decomposes the undigested food which yields B vitamins, vitamin K, and gas