Question

Select the correct statements.
Statement 1: Brain is covered by meninges.
Statement 2: Cerebrospinal fluid conducts shock.
Statement 3: Vertebral column is also known as brain box. Statement 4: Brain constitutes 2% of body weight.

• A. Statement 1 and 2
• B. Statement 2 and 3
• C. Statement 3 and 4
• D. Statement 4 and 1

Answer 1

The correct option is D Statement 4 and 1

Central nervous system consists of the brain and spinal cord. Being the vital organs they are protected by the following

• Bony covering: The bony covering of the brain is called cranium which is also known as brain box. Whereas bony covering of spinal cord is called the vertebral column.
• Meninges: These are the three protective coverings that surrounds and protects the brain and spinal cord. These are Dura mater, Arachnoid mater and Pia mater from outer to inner side.
• Cerebrospinal fluid: Present between the meninges is a colourless fluid called the cerebrospinal fluid. It absorbs shocks and jerks. The brain constitutes 2% of the total body weight.