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Lab 16 The Digestive System BIO202L
Student Name: DORA MENDE.
Access Code (located on the lid of your lab kit): AC-5FSXLG
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.
The oral cavity is where digestion begins. The sublingual, parotid, and submandibular glands
secrete saliva into the oral cavity. The saliva lubricates food during chewing, protects the mouth
from pathogens, and initiates chemical digestion. The teeth mechanically break down food
through mastication. The pharynx receives food from the mouth after swallowing, when the
tongue forces food to the back of the mouth. Food then travels to the esophagus.
2. What is the function of the liver in digestion?
The liver's role in digestion is to process the nutrients absorbed from the small intestines and
produce bile.
3. What role does the gall bladder play in digestion?
The gallbladder stores excess bile. When food enters the duodenum, bile flows easily from the
liver and gallbladder into the duodenum.
4. Why is the orientation of muscle of the stomach wall important? How does this contribute to its
function?
The stomach consists of two main muscle layers, the longitudinal and circular layers. The
longitudinal layer helps push food from the upper part of the stomach (cardiac region) towards
the lower part (pylorus). The circular layer assists in keeping the pyloric and cardiac sphincters
closed.
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
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Lab 16 The Digestive System BIO202L
D. Mucosal glands
E. Submucosa
2026-01-09 Start your exams prepared! Page 2
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1 of 13 Q&A || Complete Questions& Correct Answers || (100% Verified) ||| Latest Update||Guaranteed Pass A+| Fully
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Verified
your|| exams
? //full exam
prepared!
coverage!
Lab 16 The Digestive System BIO202L
Student Name: DORA MENDE.
Access Code (located on the lid of your lab kit): AC-5FSXLG
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.
The oral cavity is where digestion begins. The sublingual, parotid, and submandibular glands
secrete saliva into the oral cavity. The saliva lubricates food during chewing, protects the mouth
from pathogens, and initiates chemical digestion. The teeth mechanically break down food
through mastication. The pharynx receives food from the mouth after swallowing, when the
tongue forces food to the back of the mouth. Food then travels to the esophagus.
2. What is the function of the liver in digestion?
The liver's role in digestion is to process the nutrients absorbed from the small intestines and
produce bile.
3. What role does the gall bladder play in digestion?
The gallbladder stores excess bile. When food enters the duodenum, bile flows easily from the
liver and gallbladder into the duodenum.
4. Why is the orientation of muscle of the stomach wall important? How does this contribute to its
function?
The stomach consists of two main muscle layers, the longitudinal and circular layers. The
longitudinal layer helps push food from the upper part of the stomach (cardiac region) towards
the lower part (pylorus). The circular layer assists in keeping the pyloric and cardiac sphincters
closed.
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
2026-01-09 Start your exams prepared! Page 1
, ? Updated:
Page 2026/2027//
2 of 13 Q&A || Complete Questions& Correct Answers || (100% Verified) ||| Latest Update||Guaranteed Pass A+| Fully
2 Start
Verified
your|| exams
? //full exam
prepared!
coverage!
Lab 16 The Digestive System BIO202L
D. Mucosal glands
E. Submucosa
2026-01-09 Start your exams prepared! Page 2
