Term
List broad function:
Liver
Pancreas |
|
Definition
Secretion of bile, storage of nutrients, plasma proteins, clotting factors, detox, phagocytosis
Buffers and digestive enzymes by exocrine cells, hormones by endocrine cells |
|
|
Term
List broad function:
Small GI
Large GI |
|
Definition
Enzymatic digestion and absorption of water, organic substrates, vitamins, and ions; host defense
Dehydration and compaction of indigestible material, resorption of water and electrolytes; host defense |
|
|
Term
| What are organs separated by? |
|
Definition
|
|
Term
| Epithelial secretions do 3 things: |
|
Definition
| lubricate, protect, and digest |
|
|
Term
| musculature is used for 2 things: |
|
Definition
|
|
Term
| intrinsic nerve plexus regulate 2 things: |
|
Definition
|
|
Term
List layers of duodenum wall:
(Lumen -> Serosa) |
|
Definition
Mucosa: epithelium -> lamina propria -> muscularis mucosae
Submucosa
Muscularis externa: circular muscle, longitudinal muscle
Serosa |
|
|
Term
| The GI tract composes of smooth muscle, except in 3 places: |
|
Definition
| mouth, upper esophagus, and external anal sphincter |
|
|
Term
Which layer is the myenteric plexus found in?
What is the myenteric plexus responsible for? |
|
Definition
Muscularis externa
motility |
|
|
Term
| Which layer is the submucosal plexus found in? What is the submucosal plexus responsible for? |
|
Definition
| Between submucosa and muscularis externa secretion |
|
|
Term
Which layer are the roots of glands found in?
What 2 things do they secrete? |
|
Definition
submucosa
mucous and buffer |
|
|
Term
| How many hours after eating is blood flow increased to the GI tract? Why? |
|
Definition
|
|
Term
| Which circulation encases the intestines? |
|
Definition
|
|
Term
| The first pass effect describes what? |
|
Definition
| Blood flows from the intestines to the liver via the portal vein |
|
|
Term
| The majority of fat bypasses the liver via the? |
|
Definition
|
|
Term
| How many liters of fluid must the GI tract absorb each day? |
|
Definition
|
|
Term
|
Definition
| sound of fluids and gases moving |
|
|
Term
| What is the pH of chyme and stomach acid? |
|
Definition
|
|
Term
How do parasympathetics effect digestion?
Give 2 examples of PNS input? |
|
Definition
Promotes digestion
vagal regulation of transverse colon & pelvic nerves to anus |
|
|
Term
How do sympathetics effect digestion?
Give 3 examples of SNS input? |
|
Definition
slows or stops digestion
post-ganglionic adrenergic fibers from celiac, mesenterics, and hypogastric plexus |
|
|
