Correct option is D
The spinal cord is located at the base of the brain, connecting the brain to the rest of the body. In the diagram provided, Number 4 indicates the location of the spinal cord, which extends from the brainstem and travels down the vertebral column.
Important Key Points:
- The spinal cord is a crucial part of the central nervous system, responsible for transmitting signals between the brain and the body.
- It begins at the brainstem, specifically at the medulla oblongata, and extends down the back, housed within the vertebral column.
- The spinal cord is encased in protective structures like the meninges and cerebrospinal fluid.
- Damage to the spinal cord can lead to paralysis or loss of function in various parts of the body, depending on the level of injury.
- The brainstem, located near the upper portion of the spinal cord, controls many basic life-sustaining functions like breathing and heart rate.
Knowledge Booster:
- Number 1: Refers to the nose and is not related to the spinal cord.
- Number 2: Refers to the brain, specifically the cerebrum, which is responsible for higher functions like thought and voluntary movement.
- Number 3: Refers to the skull area, protecting the brain but not related to the spinal cord's location.