Digestive system

Intraperitoneal organs are surrounded by this membrane and hang loose inside the cavity.

Retroperitoneal organs sit behind the peritoneal cavity and have only a partial covering.

What is the meaning of intraperitoneal and retroperitoneal?

visceral and parietal membrane

Describe the tissues that make up serous membrane

Oral cavity, pharynx, esophagus, stomach, small intestine, large intestine, rectum

Name all the structures that food passes through from the mouth to the anus.

Teeth, tongue, gallbaldder, pancreas, Liver

Name all the accesory structures of the GI tract

Serous mebrane that lines the abdominal cavity

Describe peritoneum

Parietal and visceral

what type of tissues are found in the peritoneum

falciform ligament

connects the liver to the anterior abdominal wall

lesser omentum

connects the liver to the stomach

Mesentry

connects the small intestine to the posterior wall of the abdominal cavity

greater omentum

hangs from the greater curvature of the stomach

SAD PUCKER

Name the retroperitoneal organs of the GI tract

Stomach, Small intestines, Large intestines

Name the intraperitoneal organs of the GI tract

epithelium, lamina propia, muscularis

describe the tissues found in the mucosa layer

nerve plexus

describe the tissue found in the submucosa

inner circular layer and outer longitundial layer

describe the tissues found in the muscularis externa layer

organs have an adventitia if they are located outisde of the peritoneal cavity

Why do some organs have an adventitia ?

Parotid , submandibular, sublingual

name the three major salivary glands

Stratified Squamous

The mouth until the espohagus contains what type of epithelium?

Simple columnar

The stomach until the large intestine contains what type of epithelium?

mucus cells, parietal cells, chief cells enteroendocrine cells

Name four types of specialized epithelial cells found in the mucosa of the stomach

HCI

What activates the proenzyme, pepsinogen?

secretes HCI and intrinsic factor

Describe the function. of parietal cells.

secretes pepsinogen

describe the function of chief cells

protection against acid

describe the function of mucus cells

G cell that makes the hormone gastrin

describe the function of enterendocrinem

Buccal, Pharyngeal, Esophagus

Name the 3 phases of Deglutition

cephalic phase

thinking about or smelling food

gastric phase

food reaches the stomach

intestinal phase

food reaches the small intestine

CCK and secretin

Name 2 hormones the small intestines make

contains goblet cells, villus, brush border, intestinal glands

Describe the mucosa of the small intestine

enteroendocrine and paneth cells

The intestinal glands (crypts of Lieberkuhn) consists of _____

creates lyzomes and stops bacteria

Name a product of Paneth cells and its significance

secretin and CCK

which hormones are made by enteroendocrine cells of the small intestine?

Mucus cells, protection against acidity

Name a product of the Brunner’s Gland in the submuscoa of the small intestine and its significance,

Inner circula and outer longitundial

Name two layers of the muscularis externa