BRAIN
SPINAL CORD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The spinal cord terminates by vertebra ____
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C7
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T3
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T9
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L3
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S4
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Explanation:
Detailed explanation-1: -In adults, the cord terminates at the level of L1-L2. Thus the cord spans within 20 bony vertebrae. In a child, it terminates at the upper border of L3. Each of these segments innervates a dermatome.
Detailed explanation-2: -The L3 vertebra is in the middle of the five (5) lumbar vertebrae in the lower back portion of the spinal column.
Detailed explanation-3: -The spinal cord ends at the intervertebral disc between the first and second lumbar vertebrae as a tapered structure called the conus medullaris, consisting of sacral spinal cord segments.
There is 1 question to complete.