MCQ IN MEDICINE

Detailed explanation-1: -Your spinal cord is the long, cylindrical structure that connects your brain and lower back. It contains tissues, fluids and nerve cells. A bony column of vertebrae surrounds and protects your spinal cord. Your spinal cord helps carry electrical nerve signals throughout your body.

Detailed explanation-2: -The spinal cord comprises three parts: the cervical (neck), thoracic (chest), and lumbar (lower back) regions. Three layers of tissue protect the spinal cord: the dura mater, arachnoid mater, and pia mater.

Detailed explanation-3: -The spinal cord and spine are divided into 4 regions from top to bottom: cervical, thoracic, lumbar, and sacral.

Detailed explanation-4: -The vertebra, like all bones, has an outer shell called cortical bone that is hard and strong. The inside is made of a soft, spongy type of bone that is called cancellous bone.