The ____________ is the outer most layer of the digestive tract.mucosaserosasubmucosamuscularis
Question
The ____________ is the outer most layer of the digestive tract.
mucosa
serosa
submucosa
muscularis
Solution
The correct answer is serosa.
The digestive tract is composed of four main layers:
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Mucosa: This innermost layer is responsible for the secretion of digestive enzymes, hormones, and the absorption of nutrients.
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Submucosa: This layer contains blood vessels, lymphatics, and nerves that support the mucosa and help regulate digestive processes.
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Muscularis: This layer consists of smooth muscle and is responsible for peristalsis and the mixing of digestive contents.
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Serosa: This is the outermost layer of the digestive tract, providing a protective outer covering and consisting of connective tissue.
Therefore, in response to the question, the outermost layer of the digestive tract is the serosa.
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