03/10/2026
Muscle of the Week: The Palmaris Longus 🖐️💪
Meet the palmaris longus — the overachiever that our bodies apparently decided we didn’t really need anymore. 🧬
About 10–15% of people don’t even have this muscle, and the rest of us are just walking around pretending it matters. 🤷♀️
Touch your thumb and pinky together and flex your wrist. 🤏
If a little tendon pops up… congratulations, you have a palmaris longus. 🎉
If nothing shows up… congratulations, you’re also perfectly fine. 😆
About 10–15% of people don’t even have this muscle, and the rest of us are just walking around pretending it matters.
Surgeons actually harvest this tendon for grafts all the time because your body basically shrugs and goes, “Yeah… we weren’t really using that anyway.”
So the palmaris longus is kind of like the office employee who still technically works there… but nobody can remember what their job is.
Anatomy is weird.
Bodies are weird.
And yet somehow everything still works.