the sacral vertebrae, and think it's 4 to 5 that are fused together
There are typically 33 vertebrae in the human spine: 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 sacral vertebrae (fused into the sacrum), and 4 coccygeal vertebrae (fused into the coccyx).
The 33 vertebrae in the human spine are divided as follows: 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 sacral vertebrae (fused into the sacrum), and 4 coccygeal vertebrae (fused into the coccyx).
No, the coccyx is smaller. The coccyx is formed by fused vertebrae.
The last 4 fused vertebrae in the spine are called the sacrum. The sacrum is a triangular bone located below the lumbar vertebrae and is formed by the fusion of five sacral vertebrae.
The medical term for the five fused vertebrae above the tailbone is the sacrum.
sacrum and coccyx
There are 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, the 5 sacral vertebrae fused to form the sacrum, and the 4 coccygeal vertebrae fused to form the coccyx. Depending on the way you count the number of bones, it comes to as few as 26 bones (just the fused sacrum and fused coccyx are counted) or 33 bones (if you count each bone that is fused).
Sacrum
The vertebrae at the end of the spine are fused to form the coccyx (tailbone).
The five fused vertebrae with which the hip bones move are collectively known as the sacrum. The sacrum forms the posterior wall of the pelvis and connects the spine to the hip bones, providing stability and support for the body.
it sometimes depends on the person, but there are roughly 33 in the average personit also depends what you count as vertabrae, as some people might tell you just 24Individual vertebrae named according to region and position, from superior to inferiorCervical - 7 vertebrae (C1-C7) C1 is known as "atlas" and supports the head, C2 is known as "axis"Possesses bifid spinous processes, which is absent in C7Small-bodiedThoracic - 12 vertebrae (T1-T12) Distinguished by the presence of coastal facets for the articulation of the heads of ribsBody is intermediate in size between the cervical and lumbar vertebraeLumbar - 5 vertebrae (L1-L5) Has a large bodyDoes not have coastal facets nor transverse process foraminaSacral - 5 (fused) vertebrae (S1-S5)Coccygeal - 4 (3-5) (fused) vertebrae (Tailbone)
The spine is composed of 33 movable segments called vertebrae. These vertebrae are divided into five regions: cervical (7 vertebrae), thoracic (12 vertebrae), lumbar (5 vertebrae), sacrum (5 fused vertebrae), and coccyx (4 fused vertebrae).