transverse lines
The transverse lines run horizontal through the fused sacral vertebrae
A human has 33 total vertebraeCervical vertebrae: 7Thoracic vertebrae: 12Lumbar vertebrae: 5Sacrum (fusion of 5 sacral-vertebrae): 1Coccyx (fusion of 4 coccygeal): 1
Sacralization is the fusion of the last lumbar vertebrae with the first segment of the sacrum.
Overall, sacral vertebrae problems are not common in horses. However, it is possible for the sacral vertebrae to become fractured, dislocated or infected, all of which can compress the pelvic limb spinal nerves that run through the sacral vertebrae.
sacral crest
Six
21
The lumbar vertebrae come next, followed by the sacral.
the sacral vertebrae, and think it's 4 to 5 that are fused together
sacrum and coccyx
There are Five different types of Vertebrae in the Vertabral collumn (spine).1) Cervical Vertebrae (7)2) Thoracic Vertebrae (12)3) Lumbar Vertebrae (5)4) Sacral Vertebrae (5)5) Coccygeal Vertebrae (3)
The five types of vertebra are the:cervical vertebrae (neck)thoracic vertebrae (chest)lumbar vertebrae (back)sacral (pelvis)coccyx (tailbone)