In spinal cord,inner H or Butterfly shaped grey matter is present and is covered by the white matter

H-Shaped Grey Matter: Spinal Cord
The structure characterized by an H-shaped arrangement of grey matter is the spinal cord. Below are the key features that explain this unique morphology:
Structure of the Spinal Cord
- The spinal cord is divided into segments corresponding to different regions of the body.
- It consists of an inner core of grey matter, which appears in an H or butterfly shape, surrounded by white matter.
Components of Grey Matter
- The grey matter in the spinal cord is made up of neuronal cell bodies, dendrites, and unmyelinated axons.
- It is organized into three main regions:
- Dorsal Horn: Responsible for sensory processing.
- Ventral Horn: Contains motor neurons that innervate skeletal muscles.
- Lateral Horn: Present in certain segments, involved in autonomic functions.
Functions of the Spinal Cord
- The spinal cord plays a crucial role in transmitting signals between the brain and the body.
- It facilitates reflex actions independent of the brain, ensuring rapid responses to stimuli.
Comparison with Other Structures
- Cerebrum: Contains grey matter on its surface (cerebral cortex) but not in an H-shape.
- Medulla Oblongata: Has grey matter clusters but lacks the H-shaped configuration.
- Cerebellum: Features a different arrangement of grey matter, primarily in folia, not H-shaped.
In summary, the spinal cord is distinctly recognized by its H-shaped grey matter, which is essential for its functions in sensory processing and motor control.