Practice question

As explicitly described in Chapter 6 of the NCERT Class 10 textbook, the highly delicate organs of the central nervous system require incredibly robust protection to function without any physical disruption. The human brain, being a phenomenally complex organ responsible for a multitude of vital tasks, sits securely inside a hard, bony box generally called the cranium or skull. To provide further safeguarding, inside this bony structure, the brain is safely enclosed in a fluid-filled balloon. This fluid is known as the cerebrospinal fluid, which serves as a highly effective shock absorber against sudden jolts or physical trauma. Similarly, the spinal cord, which extends downwards from the brain and fundamentally handles reflex arcs as well as nerve impulse transmission, is structurally protected by the vertebral column, commonly referred to as the backbone, preventing any minor impacts from causing severe neurological damage. By acting as a liquid cushion, this cerebrospinal fluid perfectly functions as an incredibly reliable and essential shock absorber.