Lumbar enlargement
Lumbar Enlargement
The Lumbar Enlargement (pronounced: LUM-bar en-larg-MENT) is a significant structure in the human spinal cord.
Etymology
The term "Lumbar" is derived from the Latin word "lumbus" meaning loin, and "Enlargement" is derived from the Old French "enlargir", which means to widen or expand.
Definition
The Lumbar Enlargement is an expanded region of the spinal cord where nerves for the lower limbs originate. It extends from the ninth thoracic vertebra (T9) to the first lumbar vertebra (L1).
Function
The primary function of the Lumbar Enlargement is to provide nerve supply to the lower limbs. It contains a large number of neurons, which are responsible for sending and receiving signals to and from the lower limbs.
Related Terms
- Spinal Cord: The main pathway for information connecting the brain and peripheral nervous system.
- Neuron: A nerve cell that is the basic building block of the nervous system.
- Thoracic Vertebrae: The twelve vertebral bodies in the middle of the back forming the thoracic region of the spinal column.
- Lumbar Vertebrae: The five vertebral bodies in the lower back forming the lumbar region of the spinal column.
External links
- Medical encyclopedia article on Lumbar enlargement
- Wikipedia's article - Lumbar enlargement
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