Procedure Bpharynx And Esophagus

1. Review textbook sections on the pharynx and esophagus.

2. As a review activity, label figure 49 5.

3. Observe the torso, and locate the following features:

pharynx nasopharynx opening to auditory tube (Eustachian tube) oropharynx laryngopharynx epiglottis esophagus lower esophageal sphincter (cardiac sphincter)

4. Have your partner take a swallow from a cup of water. Carefully watch the movements in the

Figure 49.2 Label the features associated with the major salivary glands.

Figure 49.2 Label the features associated with the major salivary glands.

Labeled Laryngopharynx

anterior region of the neck. What steps in the swallowing process did you observe?_

5. Examine a microscopic section of esophagus wall, using low-power magnification. Note that the inner lining is composed of stratified squamous epithelium and that there are layers of muscle tissue in the wall. Locate some mucous glands in the submucosa. They appear as clusters of lightly stained cells.

6. Complete Part B of the laboratory report.

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Responses

  • mantissa
    Have your partner take a swallow from a cup of water. carefully watch the movements in the anterior?
    5 years ago

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