Question

how is the central nervous system protect​

Answer 1

Answer:

hi mate

central nervous consists of 2 parts one is brain and other is spinal cord

brain is protected by hard covering known as skull and spinal cord is protected by vertebral columns

hence skull and vertibral columns protect the spinal cord

Answer 2

$\Large{\underline{\underline{\bf{Answer:-}}}}$

Both brain and spinal cord are protected from mechanical injury and shock by bony cases around them. Brain is covered over by cranium or brain box of skull. Spinal cord is similarly covered by vertebral column. Cerebrospinal Fluid. It is clear, colorless slightly alkaline fluid that occurs in the ventricles of brain, central canal of spinal cord and subarachnoid space around the two. Cerebrospinal fluid is filtered out from blood in the region of choroid plexus. It also passes back into blood. The fluid is rich in nutrients, minerals, hormones, urea and respiratory gases.

(i) It supplies food and oxygen to different parts of the brain and spinal cord.

(ii) It picks up carbon dioxide, urea and other waste products from CNS.

(iii) It carries hormones to and from brain.

(iv) It makes brain and spinal cord a fluid filled balloon and protects them from shocks.

(v) By its buoyancy, it reduces the weight of brain.

${\underline{\underline{\Large{\textbf{Thanks}}}}}$