Asked by Akeeya Jones on Jul 18, 2024
Verified
The layer of the digestive tube that contains blood vessels, lymphatic nodes, and nerves is the ________.
A) serosa
B) adventitia
C) submucosa
D) none of the above
Adventitia
The outermost layer of the wall of a blood vessel or other organ, consisting mainly of connective tissue, providing structural support and protection.
Serosa
The outermost layer of tissue that envelops some internal organs, part of the lining of the body cavities and a structure involved in protection and secretion.
Submucosa
A layer of tissue beneath the mucosa, containing blood vessels, nerves, and lymphatics, supporting the mucosa.
- Comprehend the structure and organization of the gastrointestinal (GI) tract layers.
Verified Answer
JB
Jayda BruscoeJul 19, 2024
Final Answer :
C
Explanation :
The submucosa is the layer of the digestive tube that contains blood vessels, lymphatic nodes, and nerves. The serosa is the outermost layer of the digestive tube that secretes a lubricating fluid to reduce friction as organs move against each other. The adventitia is a similar layer, but does not secrete any fluid and is found in organs that are not covered by a serosa, such as the esophagus.
Learning Objectives
- Comprehend the structure and organization of the gastrointestinal (GI) tract layers.