1
Adenoid
Tonsilla pharyngea
A mass of lymphoid tissue at the back of the nasal cavity that helps catch inhaled germs in childhood.
If you've been searching for body parts that start with A, you'll find 8 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.
Table of contents
| Adenoid | Adrenal Gland | Alveoli | Aorta |
| Aortic Bulb | Appendix | Arteries | Atrium |
List of Body Parts That Start With A
2
Adrenal Gland
Glandula suprarenalis
A small endocrine gland on top of each kidney that produces stress hormones, mineralocorticoids, and small amounts of sex hormones.
3
Alveoli
Alveoli pulmonis
Microscopic air sacs at the end of the bronchioles where gas exchange between air and blood takes place.
4
Aorta
Aorta
The largest artery in the body, carrying oxygen-rich blood from the heart's left ventricle to the rest of the body.
5
Aortic Bulb
Bulbus aortae
The dilated base of the ascending aorta just above the aortic valve, containing the openings of the coronary arteries.
6
Appendix
Appendix vermiformis
A small finger-shaped pouch attached to the cecum at the start of the large intestine.
7
Arteries
Thick-walled blood vessels that carry oxygenated blood from the heart to tissues throughout the body.
8
Atrium
Atrium cordis
Either of the two upper chambers of the heart that receive blood returning from circulation.
About body parts starting with A
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.