SENIORSENIORDIGESTIVE SYSTEMDIGESTIVE SYSTEM

Janet J. Nelson RNJanet J. Nelson RN

Alimentary Alimentary Canal:Canal:

PROCESS OF DIGESTION

1. INGESTION

2. MECHANICAL DIGESTION

3. CHEMICAL DIGESTION

4. MOVEMENTS

5. ABSORPTION

6. ELIMINATION

Digestion Animation

http://www.pennmedicine.org/encyclopedia/em_DisplayAnimation.aspx?gcid=000041&ptid=17

PERISTALSISPERISTALSIS

SALIVARY GLANDSSALIVARY GLANDS

DEGLUTITIONDEGLUTITION

http://www.hopkins-gi.org/Upload/200803141402_22821_000.swf

BUCCAL PHASEBUCCAL PHASE

PHARYNGEAL PHASEPHARYNGEAL PHASE

ESOPHAGEAL PHASEESOPHAGEAL PHASE

ESOPHAGEAL HIATUSESOPHAGEAL HIATUS

Layers of the stomachLayers of the stomach

EGDEGD

NOTICE: epiglottis, mucous lining of organs, valves, & NOTICE: epiglottis, mucous lining of organs, valves, & gastric pits.gastric pits.

http://daveproject.org/stomach-normal-upper-endoscopy/2005-01-11/

GASTRIC PITGASTRIC PIT

Gastric glands

Mucous cells= MUCOUS (thick & thin) Parietal cells= HCL acid and intrinsic factor

Chief cells= Pepsinogen Endocrine cells= Gastrin

EXOCRINE VS ENDOCRINE????

QUIZ REVIEW Complete “Window in the Stomach” Use Pat and/or models to locate:

Salivary glands Esophagus Esophageal hiatus Stomach

Fundus Body Pylorus Two sphincters Rugae Layers

EXOCRINE AND ENDOCRINE from small intestines

EXOCRINEPEPTIDASEMALTASE, SUCRASE, AND LACTASEINTESTINAL LIPASEMUCOUS CELLS

ENDOCRINE-To control bile and pancreatic juice secretion.

GREATER OMENTUM

Mesentery

Peristalsis Animation

http://www.pennmedicine.org/encyclopedia/em_DisplayAnimation.aspx?gcid=000097&ptid=17

http://www.anatomy.wisc.edu/courses/gross/