GROSS ANATOMY
VERTEBRAL COLUMN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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supporting more weight in the lower back than in the neck
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supporting less weight in the lower back than in the neck
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evolution
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vertebrae don’t increase in size
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Detailed explanation-1: -Human vertebrae increase in size from the neck to the lower back due to increased weight bearing. Spinous processes show little variation in length, are often bifurcated in cervical vertebrae, and tend to be sharp and point inferiorly in thoracic vertebrae.
Detailed explanation-2: -Lumbar (low back)-the main function of the lumbar spine is to bear the weight of the body. The five lumbar vertebrae are numbered L1 to L5. These vertebrae are much larger in size to absorb the stress of lifting and carrying heavy objects.
Detailed explanation-3: -The Atlas is the first cervical vertebra and therefore abbreviated C1. This vertebra supports the skull. Its appearance is different from the other spinal vertebrae. The atlas is a ring of bone made up of two lateral masses joined at the front and back by the anterior arch and the posterior arch.
Detailed explanation-4: -Your lumbar vertebrae provide stability for your back and spinal column and allow for a point of attachment for many muscles and ligaments. Your lumbar vertebrae support most of your body’s weight. It’s also the center of your body’s balance.