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Side view of vertebrae A typical vertebra has a body ( vertebral body ), also known as the centrum which consists of a large anterior middle portion, and a posterior vertebral arch , [ 2 ] also called a neural arch . [ 3 ]
Spinal posture is the position of the spine in the human body. It is debated what the optimal spinal posture is, [ 1 ] and whether poor spinal posture causes lower back pain . [ 2 ] Good spinal posture may help develop balance, strength and flexibility .
Side view of a typical cervical vertebra Despite greatly differing neck lengths, okapi (left) and giraffe (right) both have seven cervical vertebrae. The giraffe's neck is elongated by heterochrony , extension of the time for the embryonic development of these bones.
The spinal column, also known as the vertebral column, spine or backbone, is the core part of the axial skeleton in vertebrates. The vertebral column is the defining and eponymous characteristic of the vertebrate. The spinal column is a segmented column of vertebrae that surrounds and protects the spinal cord.
Scoliosis affects 2–3% of the United States population, or about five to nine million cases. [4] A scoliosis (spinal column curve) of 10° or less affects 1.5–3% of individuals. [100] The age of onset is usually between 10 years and 15 years (but can occur younger) in children and adolescents, making up to 85% of those diagnosed.
The filum terminale is situated centrally [2] amid the spinal nerve roots of the cauda equina [3] [2] (but is not itself a part of the cauda equina [2]).. The inferior-most spinal nerve, the coccygeal nerve, leaves the spinal cord at the level of the conus medullaris via respective vertebrae through their intervertebral foramina, superior to the filum terminale.
The bases of denticulate ligaments arise in the pia mater and are firmly attached to the arachnoid mater and dura mater at the apex. [2] The denticulate ligaments extend across the subarachnoid space between anterior nerve roots and posterior nerve roots, piercing the intervening spinal arachnoid mater to reach the dura.
These two terms, used in anatomy and embryology, describe something at the back (dorsal) or front/belly (ventral) of an organism. [2] The dorsal (from Latin dorsum 'back') surface of an organism refers to the back, or upper side, of an organism. If talking about the skull, the dorsal side is the top. [38]