ch 23 Digestive Flashcards

this is a serous membranes of abdominal cavity that consist of the
visceral and parietal peritoneum


membrane on the external surface of most digestive organs


what is the parietal peritoneum

this is a membranes that lines body wall such as wall of
abdomenpelvic cavity

what is in the peritoneal cavity

fluid-filled space between two peritoneums, and fluid lubricates
mobile organs

this is a double layer of peritoneum: layers are fused back to back;
this provides routes for blood vessels lymphatic, and nerves


_______ organ that are located within the peritoneum

Intrapertioneal organ

this hold an organ in place, stores fat and omentum is an example


this is located outside of to the peritoneum this includes most of
the duodenum and parts of large intestine.

Retroperitoneal organs

this is a tunic layer that lines the lumen this funtion different
layers perform one or all three (SAP)


What are the three functions of Mucosa layer

secretes mucus digestive enzymes and hormones
Absorbs end products
protects against infectious disease

these sublayers make up the mucosa

lamina propia
muscularis mucosae

this secretes mucus and are made up of simple columnar and cells of
most tract. this may secrete enzymes and hormones in stomach and small intestine


this made up of ________ connective has a rich supply of
capillaries, and this contains lymphoid follicles defend against organism

this is loose areolar
LAmina propia

what is MALt

mucosa-associated lymphoid tissue- protects against ingested microbes

this is a smooth muscle that produce local movement of mucosa

muscularis mucosae

this consist of areolar connective tissue and contains blood and
lymphatic vessels, lymphoid follicles and submucosal nerve plexus that
supply surrounding GI tract tissues


the________ _______ is a muscle layer responsible for segmentation
and perstalisis. Contain inner circular muscle layer and outer
longitudal layers.

Muscularis externa

this is the outermost layer which is madeup of visceral peritoneum,
formed from areolar connective tissue covered with mesothelium (single
layer of squamous epithelium) in most organs. This can also be replace
by fibrous_______ in esophagus.

Serosa and adventitia

what are two layers of muscularis externa

circular layer for smooth muscle that controls lumen diameter,
several places throughout GI tract thickens to form sphincters
(prevent blackflow)
longitudinal layer smooth muscle that control tract length

what is a splanchnic circulation

This is an arteries that branch off aorata to serve digestive organs.
hepatic splenic and left gastric arteries, Inferoir and superior

this drain nutrients rich blood from digestive organs, delivers blood
to liver for processing

hepatic portal circulation