Q:

What protects the brain?

A:

Quick Answer

The brain is protected by connected bony plates in the head known as the skull. It is also protected by the meninges, a three layer membrane.

Continue Reading

Full Answer

The human skull has 22 bones. Eight bones enclose the brain and make up the cranium. These are the occipital bone, which is found at the back of the skull, and the sphenoid, which is found at the base of the skull. There are two parietal bones at the top and sides of the skull. The frontal bone is found at the forehead and the ethmoid bone is found at the nose. The other bones of the skull are the facial bones. In an adult, the bones unite in hard, zigzag joints called sutures. In babies, these places are still open and soft.

The meninges are divided into the dura mater, the pia mater and the arachnoid. The dura mater is the toughest of the membranes and lies just beneath the skull. It separates the two brain hemispheres from each other and the cerebellum. The arachnoid lies just beneath the dura mater and is separated from it by cerebrospinal fluid. The pia mater follows the folds and depressions in the brain. It contains blood vessels that bring blood to and from the cerebral cortex.

Learn more about Nerves

Related Questions

  • Q:

    What are some functions of the cervical spine?

    A:

    The main functions of the cervical spine are to support the skull, provide mobility for the spine and protect the spinal cord, according to Healthline. The cervical spine is located at the upper portion of the spinal column.

    Full Answer >
    Filed Under:
  • Q:

    What is the function of the central nervous system?

    A:

    The central nervous system, composed of the brain, spinal cord and an extensive neuron network, serves as the control center for all bodily functions. It functions as the transmitter and receiver as well as the pathway for information flow and determines how the body responds to changes in its internal and external environment.

    Full Answer >
    Filed Under:
  • Q:

    What does the corpus callosum do?

    A:

    The corpus callosum is a bundle of nerve fibers connecting the two hemispheres of the brain that facilitates the transfer of information from one hemisphere to the other. It is composed of 200 to 250 million axons, and it is the brain's largest white-matter structure.

    Full Answer >
    Filed Under:
  • Q:

    What is the purpose of the corpus callosum?

    A:

    The corpus callosum connects the two hemispheres of the brain, according to Healthline. It is a bundle of neural tissue with approximately more than 200 million axons. It facilitates communication between the right and left hemispheres of the brain.

    Full Answer >
    Filed Under:

Explore