biol 204 lab for week 11 digestive system anatomy
TRANSCRIPT
BIOL 204 Lab For Week 11
Digestive System Anatomy
Activity 1 Microscopic Anatomy of the GI Tract
The GI tract consists of a tube that extends from the mouth to the anus. It has four tissue layers (tunics):
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There are structural modifications of the tunics in various areas of the GI tract
Another, detailed view of GI tract tunics
Gastroesophageal Junction
Different microscopic views
Histology of The Stomach Wall
Histology of the Small Intestine (Duodenum)
Micrograph
Intestinal Villus
Activity 2 Histology of Selected GI Tract Organs
A. The Pancreas – Gross View
Microscopic View of the Pancreas:
Islet Cells: endocrine; secrete insulin and glucagon
Acinar Cells: exocrine; secrete digestive enzymes
B. The Liver
Gross View of the Liver
Liver – Microscopic Anatomy
Activity 3 Gross Anatomy of the GI Tract
The GI Tract:
The Mouth
The Esophagus
The Stomach
The Duodenum of the Small Intestine Receives the Ducts of the Liver, Gall Bladder and Pancreas
Portions of the Large Intestine
Extrinsic Salivary Glands
Types of Permanent Teeth
Each jaw has:
2 central incisors 2 lateral incisors 2 canines (eyeteeth) 4 premolars
6 molars
Internal Anatomy of a Tooth
1. Diaphragm
2. Liver – left lobe
3. Falciform Ligament
4. Liver right lobe
5. Stomach
6. Greater Omentum
7. Ascending Colon
8. Cecum
9. Small Intestine
10. Descending Colon
11. Sigmoid Colon
An Appendix, Unfixed
Gall Bladder on the Underside of the Liver
Liver – Gross View
Serosal Surface
Human Duodenum, Unfixed
Abdomen of the Cat
Cat Abdomen – Greater Omentum Removed
Gall Bladder and Lobes of the Liver
Small and Large Intestine Removed
More Images
1. Parotid Gland
2. Sublingual Gland
3. Submandibular Gland
4. Esophagus
5. Tongue
6. Masseter Muscle
7. Larynx
8. Trachea
1. Liver 4. Ascending Colon
2. Stomach 5. Pancreas
3. Duodenum 6. Spleen