What is a hard knot on the back of the skull?
It's called the inion
Soft knots are somewhat less painful, but other than that it makes little difference. A knot is simply a bad bruise; the hardness or softness of it is determined by how much inflammation exists in the tissues, pressing up against the bones of the skull. Both will reabsorb into the system at the same rate without harm. if you get a particularly bad knot, however, and feel faint, dizzy, or nauseous afterwards, you should have…
Generally, eyes on the back could signify that the person wearing them is distrustful of some of the people around him...Many anthropologists used to think the knot on the back of the skull was where primitive humans had a third eye to 'watch their back'. If there are any other reasons they just escape me right now....Hope this helps
Not sure what you mean here, but when a bovine is dehorned, the horns don't grow back, especially if they were cut at the root and not an inch away from the skull. If the horns were cut only an inch away from the skull, they still will grow, but not normally like they would if they were not cut off.
What kind of spider has a back that looks like a skull with a lime green legs and white back with the skull clearly marked?
If you are referring to the bone at the base of your skull where your skull meets your first vertabrae then it is called the occipital bone or atlas. If you have bumped the back of your head and it hurts you should probably get it checked out by a physician. I would recommend doing a quick WebMD search or speak with your physician if you have any medical concerns...