spinal chord anatomy

What are the parts of the spinal cord?

The spinal cord is divided into five sections : the cervical, thoracic, lumbar , sacral, and coccygeal regions. The level of injury determines the extent of paralysis and/or loss of sensation.

What are the 3 main parts of the spinal cord?

The spinal cord comprises three parts: the cervical (neck), thoracic (chest), and lumbar (lower back) regions.

Where does the spinal cord begin and end?

The spinal cord begins at the bottom of the brain stem (at the area called the medulla oblongata) and ends in the lower back, as it tapers to form a cone called the conus medullaris.

What is the anatomical location of the spinal cord?

The spinal cord is located inside the vertebral canal, which is formed by the foramina of 7 cervical, 12 thoracic , 5 lumbar, and 5 sacral vertebrae , which together form the spine.

How is spinal cord protected?

The brain and spinal cord are protected by bony structures — the skull and spinal column . Meninges are membranes that cover and protect the brain and spinal cord .

Is spinal cord and backbone same?

The spinal column , more commonly called the backbone , is made up primarily of vertebrae, discs, and the spinal cord . Acting as a communication conduit for the brain, signals are transmitted and received through the spinal cord .

Can the spinal cord heal itself?

Unlike other parts of your body, the spinal cord does not have the ability to repair itself if it is damaged. A spinal cord injury occurs when there is damage to the spinal cord either from trauma, loss of its normal blood supply, or compression from tumor or infection.

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What is spinal cord and its function?

The brain and spinal cord are your body’s central nervous system. The brain is the command center for your body, and the spinal cord is the pathway for messages sent by the brain to the body and from the body to the brain.

Why is the spinal cord so important?

The spinal cord controls various parts of the body and plays an important role when it comes to bladder control. The spinal cord forms a vital link between the brain and the rest of the body and is part of the central nervous system. Together with the brain it controls bodily functions, including movement and behavior.

How many pairs of spinal nerves do humans have?

Spinal nerve, in vertebrates, any one of many paired peripheral nerves that arise from the spinal cord. In humans there are 31 pairs : 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. Each pair connects the spinal cord with a specific region of the body.

How many spinal cords are in the human body?

The average person is born with 33 individual bones (the vertebrae) that interact and connect with each other through flexible joints called facets. By the time a person becomes an adult most have only 24 vertebrae because some vertebrae at the bottom end of the spine fuse together during normal growth and development.

What organ is anterior to the spinal cord?

The brain is ( superior or inferior] to the spinal cord .

What is the difference between spine and spinal cord?

A column of bones called vertebrae make up the spine ( spinal column ). The vertebrae protect the spinal cord , a long, fragile structure contained in the spinal canal, which runs through the center of the spine .

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What is spinal segment?

The spinal column is made up of bones called vertebrae. The spinal cord is located in the vertebral foramen and is made up of 31 segments : 8 cervical, 12 thoracic, 5 lumbar , 5 sacral and 1 coccygeal. A pair of spinal nerves leaves each segment of the spinal cord.

What connects the brain to the spinal cord?

The midbrain (derived from the mesencephalon in the developing brain) serves as the vital connection point between the forebrain and the hindbrain. It’s the top part of the brainstem , which connects the brain to the spinal cord.