![AstraZenecaUK on X: "There are about 320 pairs of #muscles in the human body. The largest muscles are those in your buttocks; the body's smallest muscles are found in the ears; their AstraZenecaUK on X: "There are about 320 pairs of #muscles in the human body. The largest muscles are those in your buttocks; the body's smallest muscles are found in the ears; their](https://pbs.twimg.com/media/DSmlzN-VQAAvcYx.jpg)
AstraZenecaUK on X: "There are about 320 pairs of #muscles in the human body. The largest muscles are those in your buttocks; the body's smallest muscles are found in the ears; their
![BBC Four - Secrets of Bones, Sensing the World, In pictures: Sensing the world - The ossicles in the ear are the smallest in the human body and have the highest mineral BBC Four - Secrets of Bones, Sensing the World, In pictures: Sensing the world - The ossicles in the ear are the smallest in the human body and have the highest mineral](https://ichef.bbci.co.uk/images/ic/320x180_b/p01t87nj.jpg)
BBC Four - Secrets of Bones, Sensing the World, In pictures: Sensing the world - The ossicles in the ear are the smallest in the human body and have the highest mineral
![GreatBasinOrtho on X: "The smallest bone is the stirrup bone, which is located inside your ear drum. Only 0.1-0.13 inches in length, the stirrup bone is involved in the conduction of sound GreatBasinOrtho on X: "The smallest bone is the stirrup bone, which is located inside your ear drum. Only 0.1-0.13 inches in length, the stirrup bone is involved in the conduction of sound](https://pbs.twimg.com/media/E_Q7s_JWQAQ6Y4C.jpg)