Anatomy Guide › Head & neck
Temporal Bone
The temporal bone sits at the side of the skull, at and behind what we casually call the temple. It is one of the most intricate bones in the body — not because of its outer shape, but because of what it contains. Buried inside its dense petrous portion are the middle ear with its three tiny sound-conducting bones and the inner ear's cochlea and semicircular canals. Every sound you hear and every sense of your head's position in space passes through machinery embedded in this single bone.
The bone has several distinct parts. The flat squamous portion forms part of the skull's side wall. The zygomatic process reaches forward to form the cheekbone arch you can trace with a finger. The mastoid process is the bump you can feel just behind your earlobe — an anchor for neck muscles and a honeycomb of air cells connected to the middle ear. The styloid process, a slender spike beneath the skull, anchors ligaments and muscles of the tongue and throat.
The petrous part of the temporal bone is the hardest, densest bone in the human body — a vault built to protect the delicate hearing apparatus from vibration and injury. The facial nerve threads a long, winding canal through it, which is why ear infections or fractures here can sometimes cause one-sided facial weakness.
Anamo players meet the temporal bone often in head-region rounds. It borders the parietal bone above, the occipital bone behind, and sits close to the jaw joint in front, so a temporal-bone guess yields useful heat information across the whole side of the skull.
- Contains the middle and inner ear, including the cochlea and balance canals
- Its petrous portion is the densest bone in the human body
- The mastoid process behind the earlobe is part of it
- The facial nerve travels through a canal inside it
Think you could find the temporal bone on a 3D model? Play Anamo and test yourself — every guess is color-coded by how close it lands to the mystery structure.