Which structures protect the brain?
Responses
neurons, lobes
neurons, lobes
meninges, skull
meninges, skull
hemispheres, spinal cord
hemispheres, spinal cord
brain stem, cerebellum
brain stem, cerebellum
The structures that protect the brain include:
1. Meninges: The brain is enclosed by three layers of protective membranes called meninges. These layers provide cushioning and support for the brain. The three layers are:
- Dura Mater: The outermost and toughest layer.
- Arachnoid Mater: The middle layer, which is thin and delicate.
- Pia Mater: The innermost layer, which is closely attached to the brain surface.
2. Skull: The brain is surrounded by a bony structure called the skull or cranium. The skull provides a rigid protective barrier and helps shield the brain from external injuries.
Therefore, the correct response is: meninges, skull.
The structures that protect the brain are the meninges and the skull. The meninges are three layers of protective membranes that surround the brain and spinal cord. They consist of the dura mater, arachnoid mater, and pia mater. The dura mater is the outermost layer, the arachnoid mater is the middle layer, and the pia mater is the innermost layer that lies directly on the surface of the brain.
The skull, on the other hand, is the bony structure that encases and protects the brain. It provides a hard barrier that shields the brain from external forces and injury. The skull is made up of several bones, including the frontal, parietal, temporal, and occipital bones, which fit together to form a strong protective shell around the brain.
So, the correct answer is "meninges, skull".