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∙ 11y agoSemispinalis
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∙ 11y agoErector Spinae
Erector Spinae
The erector spinae muscles are responsible for extending the vertebral column. They run along the spine and help to maintain posture and assist in movements like bending backward or standing upright.
It extends from the medulla oblongata to the first or second lumbar vertebra (L1 or L2).
The human vertebral column has a more pronounced S-shape with distinct cervical, thoracic, lumbar, sacral, and coccygeal regions. Cats have a more uniform curvature with less pronounced regions, giving their vertebral column a more rigid appearance. Additionally, human vertebrae are larger and more robust compared to a cat's, supporting the bipedal nature of humans.
The vertebral column (commonly called "Backbone") is located directly on the opposite side of the thoracic (chest) cavity relative too the sternum. In short... vertebral column is the backbone, in the back... the sternum is the front of the rib cage, in the front.
THORACIC MUSCLESFUNCTIONNERVELongissimus ThoracisExtension, lateral flexion of vertebral column, rib rotationDorsal primary divisions of spinal nervesIliocostalis ThoracisExtension, lateral flexion of vertebral column, rib rotationDorsal primary divisions of spinal nervesSpinalis ThoracisExtends vertebral columnDorsal primary divisions of spinal nervesSemispinalis ThoracisExtends & rotates vertebral columnDorsal primary divisions of spinal nervesRotatores ThoracisExtends & rotates vertebral columnDorsal primary divisions of spina
The vertebral column is inferior to the skull.
the sternum is anterior to the vertebral column
the sternum is anterior to the vertebral column
the vertebral column is located below your skull on your back.
The opposite of chordata is invertebrates. Invertebrates are animals without a backbone, whereas chordates are animals with a notochord or vertebral column.