Essay Exercise 38 Anatomy of the Digestive System

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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 …show more content…
hardest substance in the body 4. attaches the tooth to bone and surrounding alveolar structures 5. portion of the tooth embedded in bone 6. forms the major portion of tooth structure; similar to bone 7. produces the dentin 8. site of blood vessels, nerves, and lymphatics 9. entire portion of the tooth covered with enamel ; the number of permanent teeth is

Key: a. b. c. d. e. f. g. h. i. j. 32

anatomical crown cementum clinical crown dentin enamel gingiva odontoblast periodontal ligament pulp root .

20 11. In the human, the number of deciduous teeth is 2,1,2,3 12. The dental formula for permanent teeth is 2 2,1,2,3

Explain what this means. 2 incisors, 1 canine, 2 premolars and 3 molars on upper teeth. 2 incisors, 1 canine, 2 premolars and 3 molars on upper teeth. multiple by 2 2,1,0,2 What is the dental formula for the deciduous teeth? 2,1,0,2 13. What teeth are the “wisdom teeth”? the third set of molars 2 20

14. Various types of glands form a part of the alimentary tube wall or duct their secretions into it. Match the glands listed in column B with the function/locations described in column A. Column A a f 1. 2. 3. 4. produce(s) mucus; found in the submucosa of the small intestine produce(s) a product containing amylase that begins starch breakdown in the mouth produce(s) a whole spectrum of enzymes and an alkaline fluid that is secreted into the duodenum produce(s) bile that it secretes into the duodenum via the bile duct Column B
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