A pinched nerve, carpel tunnel, maybe an aneurysm. If you have sharp pains in your spine, see a chiropractor.
Spine
Spine or Thorn
They have a spine
No, they are invertabrate animals.
yes, their dorsal and pectoral fins have a sharp spine that can cut you
You may have pulled a muscle or hurt it somehow
Asritis
The sharp slender process in a human bone is known as a spinous process, also called a neural spine. It is a bony projection that extends off the posterior side of the vertebra, serving as an attachment point for muscles and ligaments.
When feeling a cat's spine, you should be able to feel the individual vertebrae but they should not be protruding or overly prominent. A healthy cat's spine should feel firm and well-covered by muscle and skin. If the spine feels bony or sharp, it could indicate that the cat is underweight or malnourished.
I'm not sure but see a dr !!
The structure you are referring to is likely a "spine" or "spinous process." This sharp, slender projection is found on the vertebrae and serves as an attachment point for muscles and ligaments, facilitating movement and stability in the spine. These processes play a critical role in the overall biomechanics of the skeletal system.