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There are 33 Vertebrae, starting from the top (just under skull) there are: 7 cervical vertebrae 12 thoracic vertebrae 5 lumbar vertebrae 5 sacral vertebrae (fused together) 4 coccygeal vertebrae (fused together)
Wiki User
∙ 15y ago
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∙ 13y agoThe top seven vertebrae are the cervical vertebrae. The very first one is also referred to the as the "atlas". In Greek mythology, Atlas held the world on his shoulders but in anatomy the atlas holds the head on the neck, same principle, different story.
Wiki User
∙ 13y ago(Atlas)
The highest of all vertebra, the (Atlas) articulates with the Skull.
Or the Scrotom.
Wiki User
∙ 15y agoThe top seven vertebrae are a group known as the cervical vertebrae. C1-C7
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∙ 15y ago7 Cervical 12 Thoracic 5 Lumbar 5 Sacral 4 Coccygeal
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∙ 14y agoThe cervical vertebrae.
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∙ 13y agoAtlas
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How is a human spine different from mammals?
the atlas (top vertebra) is positioned more towards the botton of the skull rather than the back, because we are bipedal.
Can you skull be dislocated?
Yes. The skull sits on the top vertebra of your spine, called the atlas. If there is a strong enough trauma to the head, the skull can be moved off, or dislocated, from the atlas. Unfortunately, with enough force this causes fatal damage to the spinal cord/brain. But if there is a smaller dislocation, it can be survived.
Which one is the first vertebra of vertebral column?
The first vertebra is at the top of the neck. It is called cervical vertebra number one or C1. It also has a name and is called the atlas after the Greek god who held up the Earth. In this case the atlas supports the head.
What is lumbosacral spondylosis?
This condition usually affects middle aged and older people. It is a condition when the lower spine becomes stiff. It also describes overgrowth of lumbo sacral vertebrae. Source: http://natures-best-home-remedies.blogspot.in/2012/04/lumbosacral-spondylosis.html
How many vertebras for the body?
There are 5 different portions of the vertebra starting from top to bottom: 7 Cervical Vertebra 12 Thoracic Vertebra 5 Lumbar Vertebra 5 Sacral Vertebra 4 Coccygeal Vertebra
Lump in the middle of the top of the back of your neck and it pops out when you look down what could this be?
That would most likely be the top ridge of one of your vertebra in your spine.
What is the first bone of the cervical column?
The vertebrae are the backbones. The cervical vertebrae are at the top. The skull rests on and turns on the first cervical vertebra, called "C1". C1 is tied to the second cervical vertebra, called "C2", which allows, the head to turn far to each side by a special arrangement of bone and ligaments. C3, C4, and C5 are regular vertebrae, but smaller than those further down the spine.
What is the medical term meaning lumbar?
"Lumbar" refers to the region of the back or spine made up of the lumbar vertebrae. The 1st lumbar vertebra is just under the 12th thoracic vertebra. The easiest way to find this is to find the first vertebral body not connected to a rib. This is L1 (1st lumbar vertebra). There are 5 lumbar vertebrae (L1 through L5). The 5th lumbar vertebra sits on top of the sacrum (where your spine connects with your pelvis).
What is L5 - S1 located?
They are the names of specific vertebrae in the spine. The anatomy of the spine is sectioned for better identification and specificity. There is the neck area, the cervical spine; the main upper part of the back is the thoracic spine; the area at the "small of the back" is the lumbar spine; the part below that is the Sacral spine (also called the sacrum) which is five fused together vertebrae; and then finally the tailbone is called the coccyx and is actually four fused vertebrae. Each of the vertebra in a section is numbered. There are normally 33 vertebrae in humans (counting the fused ones). There are 7 in the cervical area, 12 in the thoracic area, 5 in the lumbar area, and the 9 making up the sacrum and coccyx. So L5 is the fifth Lumbar vertebra (counting from the top down). It is also the most common vertebra involved in lumbar disorders and low back pain. It is the last of the lumbar vertebrae. L4 is in the general area of the waist or at the highest point of the pelvic bones. So just down from there is L5 and S1 is the next one down.
What are the four sections of the spine?
In human anatomy the spinal column has been divided into four sections for reference and specificity; the cervical spine, the thoracic spine, the lumbar spine and the sacral spine. The Cervical Spine is the section in the neck area comprised of seven vertebrae starting at the base of the skull and counting down the spine. To refer to the individual vertebrae in that area you would again start at the base of the skull with C1, and then count down to the last cervical vetebra, C7. The cervical spine is made up of C1, C2, C3, C4, C5, C6, and C7. The Thoracic Spine is the next section down the back located in the chest area and is comprised of twelve vetebrae. The ribs connect to the thoracic spine and create a strong skeletal structure that protects the vital organs. The vertebrae in the thoracic spine start with the eighth vertebra down which is called T1 and continued through T12. The third major region of the spine, the Lumbar Spine,starts below the thoracic spine with the thirteenth vertebra, L1, and continues through L5 for most people, although it is not uncommon for some people to have a sixth Lumbar verterbra, L6. When you have a low backache, it is usually in the area of the Lumbar Spine since it is the part of the vertebral column that supports most of the body's weight. The final section of the spine continues from the last lumbar vertebra, number seventeen (or eighteen, if there are six in this section) and down to the pelvis. This is called the Sacral Spine and has only one vertebra, the sacrum, called S1, and the coccyx bone which is also known as the tail bone. The sacrum and coccyx are uniquely shaped.
What is lumber in the human body?
The lumbar spine is the lower back that begins below the last thoracic vertebra (T12) and ends at the top of the sacral spine, or sacrum (S1). Most people have 5 lumbar levels (L1-L5), although it is not unusual to have 6. Each lumbar spinal level is numbered from top to bottom—L1 through L5, or L6.13-
What is the peg bone at the top of the spine?
it is called the odontoid
What does a Desiccation in the L5 S1 mean?
The spine has several sections, each denoted by a letter. Starting from the top, C=cervical spine (neck); T=thoracic spine (upper body); L=lumbar spine (lower body); and S=sacral or sacrum (just above the talbone). (There is also the coccyx, or tailbone, which in most is one solid bone, and has no specific letter denotation.) Each section has multiple bones called vertebrae that are numbered. There are spaces in between each vertebra called discs. These are circular pieces of cartilage filled with a jelly-like material called the nucleosus pulposus. These discs serve as a cushion between the bones, and are crucial to allowing the spine to flex and bend freely. Discs are named by using the position of the vertebrae that "sandwich" it, in this case, L5,S1 (the 5th lumbar vertebra and 1st sacral vertebra). Dessication means drying out. So, in layman's terms, the disc in the lowest part of the lumbar spine has dried out, which means that the it is less able to provide cushioning from the bones during movement.
What is the junction?
It's the place where the bottom-most lumbar vertebra meets the top of the sacrum.
What is the T2 and where is it located?
Your spine is composed of 5 sections from top to bottom: cervical, thoracic, lumbar, sacral, & coccygeal.The thoracic section starts at the bottom of your neck and ends at the top of your low back. The thoracic section contains 12 vertebrae (or bones). The second thoracic vertebrae from the top is called the T2 vertebra. This level is located near the top of where your shoulder blades are.
How is a human spine different from mammals?
the atlas (top vertebra) is positioned more towards the botton of the skull rather than the back, because we are bipedal.
Can you skull be dislocated?
Yes. The skull sits on the top vertebra of your spine, called the atlas. If there is a strong enough trauma to the head, the skull can be moved off, or dislocated, from the atlas. Unfortunately, with enough force this causes fatal damage to the spinal cord/brain. But if there is a smaller dislocation, it can be survived.
