Questions tagged [vertebra]

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Movement of the Ribcage during movements of the Thoracic Spine

I want to find a rough relation between the angle of rotation of the thoracic spine and the corresponding segmental movements in the skeleton of the ribcage. I have come across some research which ...
Prakhar's user avatar
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Can the instantaneous center of rotation of a vertebrae be mathematically determined for flexion of lumbar?

I am starting to learn spinal anatomy and I want to determine the Instantaneous axes of rotation (IAR) of individual vertebrae. I have referred many research papers but haven't come across any useful ...
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Is there any meaningful ratio between the width of a vertebra and its height and depth?

Given the location (i.e. their entry points, but not their trajectories) of two pedicle screws, we are trying to come up with a way to approximate the sagittal distance of the vertebral foramen to the ...
User1291's user avatar
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Can anyone ID this fossilized bone

Is this a fossilized backbone? If so then from what? This "bone" is approximately four inches (10 cm) wide by two inches (5 cm) deep and two inches (5 cm) tall. The texture is rock-like. If ...
JCSlascher's user avatar
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When does the vertebral column finish chondrifying and begin to ossify?

I have read many articles on vertebral column development in embryos on the internet. Different articles give different time periods for the end of chondrification of the vertebral column and the ...
Abir Khokhar's user avatar
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If the human atlanto-axial joint is pivotal only, what accounts for the craniums additional degrees of freedom?

The atlanto-axial joint is supposedly a pivot joint. I assumed it would be considered a ball-and-socket joint, based on a) the physical shape of the dens, and b) the degrees of motion of the cranium ...
voices's user avatar
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Identify this vertebra

I was walking on the beach in New Jersey (U.S.), at about 40 degrees longitude, and found this bone. It's not a fish. The long process in the front is interesting. It is likely a C2 vertebra. I looked ...
Karl Kjer's user avatar
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