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What of the needle determined the diameter of its lumen?
guage
Function of the trechea?
The trachea is also known as the windpipe. It is a bony tube, which connects the nose and mouth to the lungs, hence is an important part of the respiratory system in vertebrates. It is a rigid muscular tube located in front of the esophagus, which is approximately 4.5 inches long and 1 inch wide. Its inner diameter is about 21 to 27 millimeters and the length is approximately 10 to 16 centimeters. There are approximately 15 to 20 incomplete C-shaped cartilage rings, which protect the trachea and maintain the airway. The muscles of the trachea are connected to the incomplete rings and contract while coughing, which reduces the size of the lumen of the trachea to increase the flow of air. The cartilages ensure that the larynx and the trachea do not collapse, when there is no air in them.
What layer is adjacent to the lumen of the intestine?
The mucosa consists of mucosal glands, crypts, and other stuff
What is the open space inside a structure such as the small intestine?
Lumen
What does the lumen of intestine do in an earthworm?
lumanate its inside
What is Bowel lumen?
It is the space within the intestine
Where does final digestion of carbohydrates occurs?
small intestine
What is a word for hollow intestine?
The word is lumen. It means the interior of a hollow tubular structure such as the intestine.
What lines the lumen of all blood vessels?
The lumen is the inner open space or cavity of a tubular organ, such as a blood vessel or an intestine
Why are the intestines so good at absorbing food molecules?
The small intestine has many villi, small projections into the lumen of the small intestine. These villi increase the surface area of the small intestine, and increase the funcitonal area for the absorbtion of nutrients.
What are protrusions into the lumen in the small intestine that create an increased surface area for nutrient absorption?
Villi
What are protrusions into the lumen called that create an increased surface area for nutrient absorption in the small intestine?
Villi
What is the involuntary tissue that constricts the lumen of the small intestine?
Smooth muscle tissue constricts the lumen of the small intestine involuntarily. This muscle tissue is responsible for moving food and materials through the digestive tract by contracting and relaxing in a rhythmic pattern.
What is the tubular cavity within the body called?
The tubular cavity within the body is called a lumen. It refers to the inner space of a tubular structure such as a blood vessel or intestine. The lumen allows for the passage of gases, liquids, or other substances within the body.
