Spinal
Spinal
Spinal (/ˈspaɪnəl/), derived from the Latin word "spina" meaning "thorn" or "backbone", is a term related to the spine or vertebral column, a complex structure in the body that plays a crucial role in human anatomy and physiology.
Definition
The term "spinal" refers to anything related to or situated near the spine or vertebral column. This includes various structures such as the spinal cord, spinal nerves, spinal muscles, and spinal discs.
Related Terms
- Spinal Cord: 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.
- Spinal Nerves: Spinal nerves are the nerves that originate in the spinal cord and form part of the peripheral nervous system. They carry motor, sensory, and autonomic signals between the spinal cord and the body.
- Spinal Muscles: Spinal muscles are a complex group of muscles that work together to support the spine, maintain posture, and facilitate movement. They are divided into three layers: the superficial layer, the intermediate layer, and the deep layer.
- Spinal Discs: Spinal discs, or intervertebral discs, are round, flat, cushion-like structures located between the vertebrae in the spine. They act as shock absorbers, preventing the vertebrae from rubbing against each other.
Etymology
The term "spinal" is derived from the Latin word "spina", which means "thorn" or "backbone". It was first used in the English language in the 1570s to refer to anything related to the spine or backbone.
Pronunciation
Spinal is pronounced as /ˈspaɪnəl/.
External links
- Medical encyclopedia article on Spinal
- Wikipedia's article - Spinal
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