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Vertebra – One of the 33 bones of the spinal column. The cranial cavity is the space within the skull, it protects the brain and other parts of the central nervous system. Learn more about the composition, form, and physical adaptations of the human body. Rib cage It includes the facial bones, which provides the bony support for the eyes and other facial structures. It provides support to the face. The body’s defense against: ... sternum, ribs, clavicle, spinal column, femur, and humerus • Red blood marrow has network of connective tissue where reticular cells produce reticular fibers; these ... • Cerumen or ear wax protects the ear canal by trapping dirt and dust particles. The spinal cord passes inside the hollow cavity of the backbone. The axial skeleton protects numerous vital organs and soft tissues of the body. Flexion and extension are movements that take place within the sagittal plane and involve anterior or posterior movements of the body or limbs. Anterior View of the Skull. For the vertebral column, flexion (anterior flexion) is an anterior (forward) bending of the neck or body, while extension involves a posterior-directed motion, such as straightening from a flexed position or … The skeletal bones are joined members that make muscle movement possible. Then there are the limbs (upper and lower) and the girdles that attach the four limbs to the vertebral column. spinal cord A cylindrical bundle of nerves, lying within the vertebral column, that carries sensory messages from peripheral nerves to the brain, and motor impulses from the brain to the body's muscles. The shunt allows the fluid within the syrinx to drain to an area outside of the spinal column. (4) Backbone protects the spinal cord. There are different cavities in the human body that house various organ systems. Finally, the sacrum helps to form the pelvic cavity that supports and protects the delicate organs of the abdominopelvic cavity and provides space for a fetus to pass through during childbirth. 4 Functions of backbone (1) Backbone provides main support to the body. (See Figure-1) (2) Axial Skeleton - The axial skeleton consists of the skull, spinal column and rib cage. The Skeleton Protects Vital Organs. Human body, the physical substance of the human organism. Characteristic of the vertebrate form, the human body has an internal skeleton with a backbone, and, as with the mammalian form, it has hair and mammary glands. (3) Appendicular Skeleton - The appendicular skeleton The axial skeleton forms a central axis that includes bones of the skull, hyoid, vertebral column, and thoracic cage. (3) Backbone attaches shoulder bones ribs and hip bone. The cervix is the lower portion of the uterus, an organ of the female reproductive tract.It connects the vagina with the main body of the uterus, acting as a gateway between them.. Anatomically and histologically, the cervix is distinct from the uterus, and hence we consider it as a separate anatomical structure.. A cervical, thoracic, or lumbar vertebra has a cylindrically–shaped body anteriorly and a neural arch posteriorly (composed primarily of the laminae and pedicles as well as the other structures in the posterior aspect of the vertebra) that protects the spinal cord. Flexion and Extension. The sacrum also surrounds and protects the spinal nerves of the lower back as they wind their way inferiorly toward the end of the trunk and into the legs. (2) Back bone supports the head at top. the body; protects vital organs; and provides sites of attachment for tendons, muscles, and ligaments. The spinal cord is a single structure, whereas the adult brain is described in terms of four major regions: the cerebrum, the diencephalon, the … Orbit –it is a bony socket housing the eyeball and the eye muscles. The brain is surrounded by bones that form part of the skull. The brain and the spinal cord are the central nervous system, and they represent the main organs of the nervous system. It focuses on the opening of the orbits and the nasal cavity. However, shunts can be associated with significant side effects including spinal cord injury or infection, bleeding (hemorrhaging), and blockage. The lungs are protected in the pleural cavity. Shunting can stop the progression of the disorder and relieve some symptoms such as pain and headaches. It protects the brain. Thus backbone encloses and protects the spinal cord from damage. The skull provides protection for the brain, the vertebral column protects the spinal cord, and the thoracic cage protects the heart and lungs. The abdominal cavity houses the intestines, liver and spleen. The cavity within the vertebral column through which the spinal cord passes. 3.

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