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37 Cards in this Set

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Organs of the digestive system

(Gastrointestinal {GI} tract)


Oral cavity, pharnyx, esophagus, stomach, small intestine (duodenum, jejunum, ileum) and large intestine (colon)

Accessory organs (defintion)

Organ that is not part of the GI tract but is attached to it by a duct and assists the GI tract in performing it's functions.

Accessory organs of GI tract

Salivary glands, liver, gallbladder and pancreas

Oral cavity structures

Tooth structures

Regions of pharnyx

Structures of the stomach layer model (part 1)

Structures of the stomach layer model (part 2)

Torso model (part 1)

Torso model (part 2)

Layers of stomach layer model

1. Mucosa layer


2. Submucosa layer


3. Muscularis externa


•oblique layer


•circular layer


•longitudinal layer


4. Lamina propia (loose areolar CT)


5. Muscularis mucosae (of mucosa)


6. Serosa

ET of the mucosa layer?

Simple columnar epithelium

Histology (stomach) identify layers and structures

Gastric pit: have cells called mucous neck cells that secrete mucus.

This is a slide the quiz may have

Cell types (histology: stomach)

Chief cells (darker) : secrete pepsinogen; converted to to pepin that begins protein digestion.



Parietal cells (lighter) : secrete HCL acid through a series of mixing of enzymes.

1. Parietal cells


2. Chief cells

3 portions of the small intestine

1. Duodenum


2. Jejunum


3. Ileum

Structures and layers of intestinal layer model

Histology ( S. Intestine: duodenum)


Structure and layers

Up close slide

Jejunum histology

ILeum histology

Small intestine

Large intestine

Large intestine ( anatomy model )

Large intestine histology

Salivary glands

Salivary glands (anatomy model)

Liver, gallbladder and pancreas structures

Liver histology

Pancreas histology

Fetal pig organs

DON'T FORGET FUNCTION

DON'T FORGET FUNCTION

Oral cavity

First structure of GI tract; lined with mucous membrane. Openings for salivary glands. Mechanical and a little chemical - salivary amylase

Pharnyx

Muscular tube that receives food and conducts it to the esophagus. Lined with mucous membrane.

Peristalsis (esophagus)

Wave like pattern of muscle contractions produced by the muscularis externa layers.

Functions of structures in stomach

...

Wall structure of the GI tract (focus on function)

90 % of digestion

Small intestine (jejunum is bulk of chemical digestion and nutrient absorption)

Organ that secrets buffers and digestive enzymes for highly acidic chyme coming form the stomach .

Pancreas- secretes it to the duodenum