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Aveloli are the structures within the lungs, at the terminal end of bronchioles. They are not blood vessels. Aveoli resemble a cluster of grapes hanging off the smallest branches of a tree, with the tree upside down. The main bronchus in the upper chest is like the tree trunk, the bronchi branch and thin to bronchioles, then end at the aveoli. There O2 and CO2 exchange takes place.
What else can I help you with?
How is oxygen absorbed into the blood?
from the aveolus
Which type of blood vessel drains blood from tissues and returns it to the heart?
Veins are the type of blood vessel that drains blood from tissues and returns it to the heart.
Is an artery a type of blood vessel?
Yes, an artery is a type of blood vessel that carries oxygen-rich blood away from the heart to the rest of the body.
What type of tissue is a blood vessel?
......
Which type of blood vessel takes blood from the heart?
Arteries
What is the site where oxygen enters the pulmonary blood?
Oxygen enters the blood in the alveoli of the lungs
What type of blood vessel is the largest and toughest?
artery
What type of blood vessel lets gases?
capillary
What type of blood vessel brings blood from the lungs to the heart?
Pulmonary veins.
What type of blood vessel holds the greatest volume of blood?
isn't it your heart. = )
What type of blood vessel carries the blood to the heart?
Veins
Is vien a type of blood vessel?
No, I think you mean "vein".
