Alveoli
Microscopic air sacs at the end of the bronchioles where gas exchange between air and blood takes place.
5 body parts starting with the letter A — each with origin, classification, and notes.
If you've been searching for body parts that start with A, you'll find 5 detailed body parts below. We're not interested in giving you only a list of names — every entry on this page links to a full profile with the kind of detail you'd actually want to know.
For body parts, that means body system, location, function, and scientific name.
Microscopic air sacs at the end of the bronchioles where gas exchange between air and blood takes place.
The largest artery in the body, carrying oxygen-rich blood from the heart's left ventricle to the rest of the body.
A small finger-shaped pouch attached to the cecum at the start of the large intestine.
Thick-walled blood vessels that carry oxygenated blood from the heart to tissues throughout the body.
Either of the two upper chambers of the heart that receive blood returning from circulation.
That's our current list of body parts starting with the letter A. We add new entries every week — if you have a favorite body part starting with A that isn't on this page, let us know and we'll write it up.
Looking for more? Try body parts that end with A, or contain A anywhere in the name.