At what level does the spinal cord begin and end?

Where does spinal cord start and finish?

About the spinal cord and nerve roots

The spinal cord originates in the brain, exiting through a hole at the skull base called the foramen magnum and coursing through the spinal canal of the cervical, thoracic and upper lumbar spine before ending most commonly between the first and second lumbar vertebrae.

Why does the spinal cord end at L2?

It is these spinal nerve roots that compose the cauda equina beyond L1/L2. The fact that the spinal cord ends at L1/L2 is very useful in clinical practice in that it allows for spinal taps to be performed to sample CSF without the risk of puncturing the spinal cord.

Does spinal cord end at L4?

L4 spinal nerve.

The L4 spinal nerve roots exit the spinal cord through small bony openings (intervertebral foramina) on the left and right sides of the spinal canal.

What part of the spine controls the heart?

Thoracic (mid back) – the main function of the thoracic spine is to hold the rib cage and protect the heart and lungs. The twelve thoracic vertebrae are numbered T1 to T12.

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What part of your spine controls your legs?

The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.

What happens if your spinal cord hurts?

Emergency signs and symptoms of a spinal cord injury after an accident include: Extreme back pain or pressure in your neck, head or back. Weakness, incoordination or paralysis in any part of your body. Numbness, tingling or loss of sensation in your hands, fingers, feet or toes.

What is the lower end of the spinal cord called?

The bottom of the spine is called the sacrum. It is made up of several vertebral bodies usually fused together as one. The remaining small bones or ossicles below the sacrum are also fused together and called the tailbone or coccyx.

Where does spinal cord end in adults?

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.