The main function of the GI system is to ____________?

supply nutrients to body cells via:

ingestion (taking in foods),

digestion (breakdown of food),

 absorption (transfer of food products into circulation).

Elimination is excreting waste products of digestion 

The GI tract runs from the mouth to the anus and is approx. ______ feet long

30 feet 

 mucosa

 submucosa

 muscle

 serosa 

The enteric or intrinsic nervous system

also known as the "gut brain"

mixing (segmentation)

and

propulsion (peristalsis) 

The abdominal organs are almost completely covered by the peritoneum.

The peritoneum consists of two layers which are: 

the parietal - which lines the abdominal cavity wall

and

the visceral - which covers the abdominal organs 

ingestion and propulsion of food

digestion

absorption

elimination 

the mechanical component of ingestion

water, protein, mucin, inorganic salts, and salivary amylase

approx. 1 Liter is produced each day 

The LES is:

The Lower Esophageal Sphincter

it's an important barrier that normally prevents reflux

of acidic gastric contents into the esophagus 

Digestion begins:

In the mouth, and involves both mechanical (mastication) and chemical digestion

epigastric, umbilical, and left hypochondriac regions

the fundus, body, and antrum

R-hypochondriac  -  Epigastric  -  L-hypochondriac

Right lumbar  -  Umbilical  -  Left lumbar

Right inguinal  -  Hypogastric  -  Left inguinal

The correct order of assessment of the abdomen is:

Inspection, auscultation, percussion, palpation

LES and the pyloric sphincter

they guard the entrance to and exit from the stomach 

The two primary functions of the small intestines are:

digestion and absorption 

Separates the small intestine from the large intestine, and prevents reflux of large intestine contents into the small intestine

Microvilli and Villi are:

minute, fingerlike projections in the mucous membrane

they greatly increase surface area