WebOct 17, 2024 · They are made up of a total of 14 bones: two for the big toe and three for each of the other four toes. Metatarsals : These are five long bones that extend from the base of each toe to the midfoot. The first metatarsal bone leads to the big toe and plays an important role in propulsion (forward movement). WebFive bones in the lower back—the lumbar spine The spinal column combines strong bones, unique joints, flexible ligaments and tendons, large muscles and highly sensitive nerves. While many of us take the benefits of a healthy spine for granted, spinal pain is a sharp reminder of how much we depend on our back in daily life.
Anatomy of the Spine – Upper Back, Lower Back and Neck
WebThe spine has three normal curves: cervical, thoracic and lumbar. There are seven cervical vertebrae in the neck, 12 thoracic vertebrae in the torso and five lumbar vertebrae in the … WebThe discs throughout the spine have three primary functions: They act as a shock absorbers in the spine, positioned between each bony vertebra. They act as tough ligaments that hold the vertebrae of the spine together. They are cartilaginous joints that allow for slight mobility in the spine. There are a total of 23 vertebral discs in the ... biom1052 integration essay
Bones of the Pelvis and Lower Back - Innerbody
WebThe upper back has the most structural support, with the ribs attached firmly to each level of the thoracic spine and very limited movement. The lower back (lumbar vertebrae) allows for flexibility and movement in back bending (extension) and forward bending (flexion). It does not permit twisting. Clinical significance [ edit] Back pain [ edit] WebThe lumbar spine – the lower back, composed of five vertebrae, provides support for the majority of your body's weight. The thoracic spine – the middle back, made up of the 12 vertebrae in between the cervical and lumbar spine. The sacrum – the base of the spine that is composed of five vertebrae fused (joined together) as one solid unit. WebBy: Kara Beasley, DO. Peer-Reviewed. The lower back comprises the lumbar spine, which is formed by vertebral bones, intervertebral discs, nerves, muscles, ligaments, and blood vessels. The spinal cord ends at the top of the lumbar spine, and the remaining nerve roots, called the cauda equina, descend down the remainder of the spinal canal. biolytix witterswil