MÉDULA ESPINAL | Qué es, cómo funciona, partes, características y lesiones
What is the Spinal Cord and Its Functions?
Overview of the Spinal Cord
- The spinal cord is a crucial component of the central nervous system, extending from the brainstem down through the vertebral column via the spinal canal.
- It connects to various parts of the brain, including the cerebellum and brainstem, forming a long tubular structure that traverses the entire spine.
Structure of the Spinal Cord
- The spinal cord consists of gray matter (containing neuron cell bodies) and white matter (composed of axons).
- Gray matter is organized into anterior, posterior, and lateral horns, while white matter surrounds it. The central canal contains cerebrospinal fluid.
Injuries and Conditions Affecting the Spinal Cord
- Spinal cord injuries can occur due to trauma such as traffic accidents or fractures, leading to conditions like tetraplegia or paraplegia depending on injury level.
- Common issues include stenosis of the spinal canal, where narrowing occurs over time, potentially causing neurological problems.
Developmental Issues Related to the Spinal Cord
- Conditions like spina bifida arise from neural tube defects during fetal development; this may result in varying degrees of severity regarding spinal cord exposure or damage.
Anatomical Details
- A detailed view shows how vertebrae encase the spinal cord; specifically focusing on lumbar vertebrae reveals its protective role.