Itching can be diffuse (generalized all over the body) or localized -- all over or confined to a specific spot -- and there are many causes of diffuse and localized itching. Itching symptoms can be associated with. 1  rash,  dry skin,
How are the Sacrum and Coccyx different from the other vertebrae? The sacrum consists of 5 fused sacral vertebrae and the coccyx consists of 4 fused coccygeal vertebrae. They are different because the are not moveable.
In all other quadrupedal vertebrates, the pelvic vertebrae undergo a similar developmental process to form a sacrum in the adult, even while the bony tail (caudal) vertebrae remain unfused. The number of sacral vertebrae varies slightly. A horse will fuse S1âS5, but a dog will fuse S1âS3.