In humans? 33.
There are 7 bones that are formed at the top of the spinal column.
The spinal column is made of many small vertebrae stacked one upon another. These protect the spinal cord that runs through them.
seven
In human anatomy, the vertebral column (backbone or spine) is a column of 24 vertebrae, the sacrum, intervertebral discs, and the coccyx situated in the dorsal aspect of the torso, separated by spinal discs. It houses the spinal cord in its spinal canal.
33 and 42
There are three parts: cervical which is at the top, thoracic which is in the middle, and the lumbar which is at the bottom. There could be five parts if you count the sacrum and the coccyx (tail bone) which are at the way bottom or the spinal column.
The vertebrae
Yes, the spinal cord is protected from injury by the vertebral column. Around the spinal cord, there is a fluid called cerebral spinal fluid which cushions the spinal cord against minor injuries, and from bruising against the vertebral column.
snakes have 100-400 or 120-350
The spinal column is made of 31-33 bones, some of which are fused. There are 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 sacral and 2-4 coccogeal vertebrae.
an air filled sac near the spinal column in many fishes that helps maintain buoyancy.
There are 31 pairs of spinal nerves that exit the vertebral column: 8 cervical (C1-C8), 12 thoracic (T1-T12), 5 lumbar (L1-L5), 5 sacral (S1-S5), and 1 coccygeal (Co).