NEET PG DENTAL EXAM

Detailed explanation-1: -The spinal cord is protected by bones, discs, ligaments, and muscles. The spine is made of 33 bones called vertebrae. The spinal cord passes through a hole in the center (called the spinal canal) of each vertebra. Between the vertebrae there are discs that act as cushions, or shock absorbers for the spine.

Detailed explanation-2: -Both the spinal cord and the brain are surrounded by three layers/membranes called meninges, which further protect these structures from injury. These membranes also contain a fluid between them called cerebrospinal fluid that acts as a shock absorber protecting the structures from mechanical shock.

Detailed explanation-3: -Meninges. Meninges are membranes that support and protect the brain and the spinal cord. A clear fluid called cerebrospinal fluid (CSF) travels in the spaces formed by the meninges. The most common type of brain tumour that starts in the meninges is called meningioma.

Detailed explanation-4: -Each vertebra has an anterior arch and a posterior arch, which form a hole, called a foramen. The spinal cord passes through the foramen of each vertebra. The anterior arch is called the vertebral body. Discs connect one vertebral body to another to allow motion of the spine and cushion it against heavy loads.