the.com/triceps
The muscle that actually throws the punch, while biceps just flex for Instagram.
means The three-headed muscle on the back of your upper arm that straightens your elbow — the one doing the real work in a push-up or a punch.
from Straight from Latin 'tri-' (three) plus 'caput' (head) — literally 'three-headed,' describing the muscle's three origin points (the heads) that merge into one tendon at the elbow. Its full anatomical name, triceps brachii, just adds 'of the arm' to clarify it from its cousin, the triceps surae in the calf.
- name origin
- Latin for three heads, one muscle
- body share
- two thirds of upper arm mass
- job
- extends elbow, powers every push
- gym myth
- curls barely touch it, pushdowns do