Exercise 38 Anatomy of the Digestive System
R E V I E W
NAME ____________________________________ LAB TIME/DATE _______________________
S H E E T
EXERCISE 38
Anatomy of the Digestive System
General Histological Plan of the Alimentary Canal
1. The general anatomical features of the alimentary canal are listed below. Fill in the table to complete the information.
Subdivisions of the layer (if applicable)
Wall layer mucosa submucosa muscularis externa serosa or adventitia
Major functions
epithelium, lamina propria,
(not applicable)
secretion, absorption protection protection, vascular supply for mucosa churning, mixing protection, anchoring
circular and longitudinal
(not applicable)
Organs of the Alimentary Canal
2. The tubelike digestive system canal that extends from the mouth to the anus is known as the canal or the digestive tract. it has an innermost layer that runs obliquely alimentary
3. How is the muscularis externa of the stomach modified?
____________________________________________________________
_______________________________________ How does this modification relate to the function of the stomach? lets the stomach ix, churn and move food along trac
while breaking it down and mixing it in gastric juices ____________________________________________________________
_______________________________________ squamous cells in the esophagus to columna 4. What transition in epithelial type exists at the gastroesophageal junction? in the gastric mucosa ____________________________________________________________
_______________________________________ simple columnar absorb. How do the epithelia of these two organs relate to their specific functions? Stratified squamous protect ____________________________________________________________
_______________________________________ 5. Differentiate between the colon and the large intestine. large intestine extend from the ileocecal valve to the anus, bu
the colon is divided into the ascending,
NAME ____________________________________ LAB TIME/DATE _______________________
S H E E T
EXERCISE 38
Anatomy of the Digestive System
General Histological Plan of the Alimentary Canal
1. The general anatomical features of the alimentary canal are listed below. Fill in the table to complete the information.
Subdivisions of the layer (if applicable)
Wall layer mucosa submucosa muscularis externa serosa or adventitia
Major functions
epithelium, lamina propria,
(not applicable)
secretion, absorption protection protection, vascular supply for mucosa churning, mixing protection, anchoring
circular and longitudinal
(not applicable)
Organs of the Alimentary Canal
2. The tubelike digestive system canal that extends from the mouth to the anus is known as the canal or the digestive tract. it has an innermost layer that runs obliquely alimentary
3. How is the muscularis externa of the stomach modified?
____________________________________________________________
_______________________________________ How does this modification relate to the function of the stomach? lets the stomach ix, churn and move food along trac
while breaking it down and mixing it in gastric juices ____________________________________________________________
_______________________________________ squamous cells in the esophagus to columna 4. What transition in epithelial type exists at the gastroesophageal junction? in the gastric mucosa ____________________________________________________________
_______________________________________ simple columnar absorb. How do the epithelia of these two organs relate to their specific functions? Stratified squamous protect ____________________________________________________________
_______________________________________ 5. Differentiate between the colon and the large intestine. large intestine extend from the ileocecal valve to the anus, bu
the colon is divided into the ascending,