The main nerve tissue column that is connected to the brain and lies within the vertebral canal from which the spinal nerves emerge. It is a tubular bundle of nervous tissue that extends from the brainstem to the lumbar vertebrae and supports cells.
What is spinal cord?
Anatomical terminology. The spinal cord is a long, thin, tubular structure made up of nervous tissue, which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column. It encloses the central canal of the spinal cord, which contains cerebrospinal fluid.
What is spinal cord in short answer?
A column of nerve tissue that runs from the base of the skull down the center of the back. It is covered by three thin layers of protective tissue called membranes. The spinal cord and membranes are surrounded by the vertebrae (back bones).
What is spinal cord Class 5?
Spinal cord: The major column of nerve tissue that is connected to the brain and lies within the vertebral canal and from which the spinal nerves emerge. Thirty-one pairs of spinal nerves originate in the spinal cord: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal.
Why is the spinal cord so important?
The spinal cord and the brain together constitute the Central Nervous System. It is an incredibly complex and intricate mesh of nerves. Functioning as the body’s main relay station, the CNS is responsible for all the basic functions of the body, such as breathing, walking, talking, movement, and reflexes.
What are the functions of spinal cord Class 9?
The spinal cord’s major functions include:
- Electrochemical communication. Electrical currents travel up and down the spinal cord and across nerves, sending signals which allow different segments of the body to communicate with the brain.
- Walking. …
What are the different parts of spinal cord?
The spinal cord is divided into four different regions: the cervical, thoracic, lumbar and sacral regions (Figure 3.1).
What are the diseases of the spinal cord?
What Is Spinal Cord Disorder?
- Spinal stenosis.
- Herniated discs.
- Vertebral fractures.
- Degenerative disc disease.
What is the function of spine?
Your spine, or backbone, is your body’s central support structure. It connects different parts of your musculoskeletal system. Your spine helps you sit, stand, walk, twist and bend. Back injuries, spinal cord conditions and other problems can damage the spine and cause back pain.
What are the layers of the spinal cord?
Three layers of membranes known as meninges protect the brain and spinal cord. The delicate inner layer is the pia mater. The middle layer is the arachnoid, a web-like structure filled with fluid that cushions the brain. The tough outer layer is called the dura mater.
How do you explain the spinal cord to a child?
The spinal cord is a bundle of nerves that sends signals between the brain and other parts of the body. It runs down the center of the backbone (spine) through a fluid-filled channel called the spinal canal. The spinal cord carries messages back and forth between the brain and body.