Lab 16 The Digestive System BIO202L
Student Name: Ravneet sahota
Access Code (located on the lid of your lab kit:- AC- EI0BTY
Lab Report Format Expectations
Utilize college level grammar and professional formatting when completing this worksheet.
Submissions without proper formatting, all required photos or sufficient responses will be rejected. Pre-
lab Questions
1. Explain the digestion that occurs in the oral cavity.
. In the oral cavity, digestion begins with chewing and mixing food with saliva. Saliva contains
enzymes like amylase, which starts breaking down carbohydrates, and lingual lipase, which
begins digesting fats. This mechanical and chemical digestion forms a moist mass called a bolus,
ready for swallowing and further digestion in the stomach.
2. What is the function of liver in digestion?
The liver produces bile, which helps digest fats in the small intestine.
3. What role does the gall bladder play in digestion?
The gallbladder stores and releases bile, which aids in the digestion of fats in the small intestine.
4. Why is the orientation of muscle of the stomach wall important? How does this contribute to its
function?
The orientation of muscle in the stomach wall helps mix food and gastric juices efficiently, aiding
digestion.
EXPERIMENT 1: MICROSCOPIC ANATOMY OF THE DIGESTIVE SYSTEM
Introduction Questions
1. Label the items in the following slide pictures.
A. Epithelium
B. Epithelia
C. Lamina propia
D. Mucosal glands
,Lab 16 The Digestive System BIO202L
E. Submucosa
, Lab 16 The Digestive System BIO202L
Data and Observations
Draw the digital slide of the esophagus. Insert your drawing here. Remember that your drawing should
have your name and access code handwritten in the background.
Student Name: Ravneet sahota
Access Code (located on the lid of your lab kit:- AC- EI0BTY
Lab Report Format Expectations
Utilize college level grammar and professional formatting when completing this worksheet.
Submissions without proper formatting, all required photos or sufficient responses will be rejected. Pre-
lab Questions
1. Explain the digestion that occurs in the oral cavity.
. In the oral cavity, digestion begins with chewing and mixing food with saliva. Saliva contains
enzymes like amylase, which starts breaking down carbohydrates, and lingual lipase, which
begins digesting fats. This mechanical and chemical digestion forms a moist mass called a bolus,
ready for swallowing and further digestion in the stomach.
2. What is the function of liver in digestion?
The liver produces bile, which helps digest fats in the small intestine.
3. What role does the gall bladder play in digestion?
The gallbladder stores and releases bile, which aids in the digestion of fats in the small intestine.
4. Why is the orientation of muscle of the stomach wall important? How does this contribute to its
function?
The orientation of muscle in the stomach wall helps mix food and gastric juices efficiently, aiding
digestion.
EXPERIMENT 1: MICROSCOPIC ANATOMY OF THE DIGESTIVE SYSTEM
Introduction Questions
1. Label the items in the following slide pictures.
A. Epithelium
B. Epithelia
C. Lamina propia
D. Mucosal glands
,Lab 16 The Digestive System BIO202L
E. Submucosa
, Lab 16 The Digestive System BIO202L
Data and Observations
Draw the digital slide of the esophagus. Insert your drawing here. Remember that your drawing should
have your name and access code handwritten in the background.
