Anatomy P110/ J.Wiens
Porterville College
Digestive System Notes
Introduction
1. The gastrointestinal tract 2. The accessory organs –
I. Oral Cavity
1. Cheeks –
2. Lips –
3. Palate –
4. Tongue –
5. Salivary glands –
(a) small glands –
(b) Parotid gland –
(c) Submandibular gland –
(d) Sublingual gland –
6. Teeth
figure __________
Enamel –
Dentin –
Pulp cavity –
Crown –
Gingiva –
Periodontal ligaments –
Cementum –
Figure ________
Incisors –
Cuspids –
Bicuspids –
Molars –
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Anatomy P110/ J.Wiens
Porterville College
deciduous teeth ______________
permanent teeth ______________
7. Tonsils –
pages –
Palatine –
Lingual –
Pharyngeal –
II. Pharynx
1. Nasopharynx –
2. Oropharynx –
3. Laryngopharynx –
III. Histology
Four wall layers – page ________
1. Mucosa –
2. Submucosa –
3. Muscularis –
4. Serosa or Adventitia –
Innervation –
Parasympathetic –
Sympathetic –
IV. The Esophagus
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Anatomy P110/ J.Wiens
Porterville College
Esophogeal hiatus –
Hiatal hernia –
Heartburn –
V. Swallowing
Stage 1 –
Stage 2 –
Stage 3 –
VI. The Stomach
1. Mixes up to ___________ of food.
2. ________________ and _______________ digestion.
3. Figure ____________
4. Figure ____________
5. Ulcer –
-
6. Cells replaced about every _______________.
7. Chyme –
VII. The Small Intestine
Function –
1. Parts
(a) duodenum –
(b) jejunum –
(c) ileum –
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Anatomy P110/ J.Wiens
Porterville College
2. Plicae circularis –
Villi –
Microvilli -
3. Mesentery page __________
Greater omentum page __________
4. Glands
(A) Intestinal glands –
(B) Submucosal glands –
VIII. The Large Intestine
1. Function:
2. Parts –
3. Structure:
4. Movements
IX. Liver
Largest gland in the body.
Structure
(a) 4 lobes
(b) 3 ligaments
(c) Functional units –
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Anatomy P110/ J.Wiens
Porterville College
Blood flows into the hepatic sinusoids, then surround the hepatic cells.
These cells
1. Produces bile –
2. Detoxifies
3. Stores
4. Metabolizes
5. Synthesizes blood plasma proteins and
Contains reticuloendothelial cells (Kupffer cells) which
X. Gallbladder
1. Lies under the liver
2. Stores bile (bile then travels through _________duct which
combines with the ___________________________. These
two combine to form the ________________________
XI. The Pancreas
1. Sits under stomach.
2. Pancreatic acinar cells produce
P.J. digests
And also produces
3. Pancreatic ducts figure ________
Main –
Accessory 5