the.com/medulla
the tiny brainstem nub that keeps you breathing while you forget it exists.
means The medulla oblongata is the lowest part of the brainstem, controlling involuntary functions like breathing, heartbeat, and swallowing.
from From Latin 'medulla,' meaning 'marrow' or 'pith' — the soft inner core of a bone or a plant stem. Anatomists borrowed it for the brain's innermost, deep-seated tissue, and 'oblongata' simply tacks on the Latin for 'elongated,' describing its stretched-out shape.
- size
- About two centimeters of utterly nonnegotiable real estate.
- job
- Runs breathing, heartbeat, and blood pressure unsupervised.
- the cross
- Nerve fibers swap sides here, so left controls right.
- damage
- Injury here can stop breathing instantly and permanently.
- reflexes
- Owns your sneezing, vomiting, and swallowing without consent.
medulla oblongata — the brainstem region controlling breathing and heart rate in humans and vertebrates
adrenal medulla — inner part of adrenal glands that produces epinephrine and norepinephrine
renal medulla — innermost region of kidneys containing the loops of henle and collecting ducts