Spinal Cord: It is a long, tube-like tissue band. It is the link between your brain and your lower back. The spinal cord transmits nerve signals from the brain to the body and vice versa. These nerve signals assist you in feeling sensations and moving your body. Any damage to your spinal cord can impair your ability to move or function.
In adults it is usually 40cm long and 2cm wide and forms an important connection between the brain and the body.
It is divided into five different parts.
There exist many spinal nerves that emerge out of each segment of the spinal cord. There are 8 pairs of cervical, 5 lumbar, 12 thoracics, 5 sacral and 1 coccygeal pair of spinal nerves. It helps in the primary processing of information as it carries sensory signals from all parts of the body to the Central Nervous System through afferent fibres. Additionally, nerve tissue comprises the grey and white matter spread across uniformly. The smooth muscles as well as the skeletal system carrying nerve fibres liaise different reflexes when ventral horn projects axons which carry motor neurons. It also helps arbitrate autonomic control for visceral functions which consist of neurons with descending axons. It is a sensitive site, which is severely affected in case of a traumatic injury.
The primary function is to transport nerve signals throughout your body. These nerve messages serve three important purposes. They are:
The length of the spinal cord varies between individuals. Females, according to some estimates, have a spinal cord length of about 43 centimetres (cm), while males have a spinal cord length of about 45 cm. It is divided into three sections: the cervical (neck), thoracic (chest), and lumbar (lower back).
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