0
Why are atlas sacral and urostyle classified as atypical vertebrae?
Wiki User
∙ 9y ago
The first cervical vertebra (C1) and the second cervical vertebra (C2) are atypical vertebrae due to the fact that the structures of these vertebrae are unlike the rest of the cervical spine vertebrae. The C1, also known as the atlas, is a ring-like structure which allows the beginning of the spinal cord to pass through form the base of the skull. The C2, also known as the axis, is the largest of the cervical vertebrae in vertical dimension as it contains an extension of bone called the odontoid process that extends up into the ring of the atlas. This area of the neck is the most freely moveable as the majority of side-to-side rotation occurs at C1 on C2 and is also most important neurologically as this area of the spinal cord controls heart, breathing and posture of the human being.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agothe c1 also called the atlas articulates with the base of the occipital bone. Unlike the C2 the atlas has no body or spinous process. The c2 or axis articulates with the c1. The c2 or axis has a body and a 'odontoid process' or 'dens' that articulates with the c1 facet, allowing you to indicate 'no' by rotating your skull.
Add your answer:
Earn +20 pts
What part of the spinal column is the vertebrae fused in?
sacrum and coccyx
Where is the invertebrate in the human body?
Assuming you mean vertebrae; The human spine is made up of 33 vertebrae (Sungular: vertebra.) There are four sections of vertebrae. The cervical vertebrae is is made up of 7 vertebrae and makes up the neck. The thoracic vertebrae makes up the upper back and contains 12 vertebrae. the lumbar vertebrae area makes up the lower back between the thoracic vetrtabrae and the sacral curve, made up of 5 vertebrae. Lastly, The tailbone area is below the lumbar section and called the sacral curve. 5 vertebrae make up the sacrum and 4 are fused to make the tailbone. All vertebrae but the sacral curve section are separated by invertebral discs.
Tendon and muscle connecting to lumbar and sacral area of vertebrae?
An x-ray of the lumbar sacral show air along each side of the spine and was told there was no connection between the ligaments/tendons and the spine. What effect can that have?
What is the medial ridge along the posterior surface of the sacrum?
sacral crest
The 33 small bones of the spinal column?
The vertebral column usually consists of 33 vertebrae: 24presacral vertebrae (7 cervical, 12 thoracic, and 5 lumbar) followed by the sacrum (5 fused sacral vertebrae) and the coccyx (4 frequently fused coccygeal vertebrae).
What are common problems with sacral vertebrae in horses?
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.
A vertebrae bone is classified as?
Yes it's a bone. What else could it possibly be? There are about 33 during early development, and 26 by adulthood. Vertebrae in the sacral and coccygeal region fuse together.
How many sacral vertebrae are in a manatee?
Six
How many bones are in the sacral vertebrae?
21
What are the next set of vertebrae come after the thoracic vertebrae?
The lumbar vertebrae come next, followed by the sacral.
What part of the spinal column is the vertebrae fused in?
sacrum and coccyx
Which vertebrae are fused?
the sacral vertebrae, and think it's 4 to 5 that are fused together
What are the groups of vertebrae?
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)
What are the five categories of vertebrae in your vertebral column?
The five types of vertebra are the:cervical vertebrae (neck)thoracic vertebrae (chest)lumbar vertebrae (back)sacral (pelvis)coccyx (tailbone)
What is the number of vertebrae that fuse to form the sacrum is?
sacral hiatus
How many vertebrae in a dog's spine?
Dogs have a total of thirty vertebrae in their spines. They have seven cervical vertebrae, thirteen thoracic vertebrae, seven lumbar vertebrae and three sacral vertebrae.
What is a sacral vertebra?
The vertebrae is located at the top of your body and ends at your lower back.
