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3 days ago · bone, rigid body tissue consisting of cells embedded in an abundant hard intercellular material. The two principal components of this material, collagen and calcium phosphate, distinguish bone from such other hard tissues as chitin, enamel, and shell. Bone tissue makes up the individual bones of the human skeletal system and the skeletons of ...
- What is bone made of?The two principal components of bone are collagen and calcium phosphate, which distinguish it from other hard tissues such as chitin, enamel, and s...
- What are the major functions of bone tissue?Bone tissue makes up the individual bones of the skeletons of vertebrates. The other roles of bone include structural support for the mechanical ac...
- Do bones contain calcium?Bone contains 99 percent of the calcium in the body and can behave as an adequate buffer for maintaining a constant level of freely moving calcium...
- Why is calcium important for bone health?The mechanical strength of bone is proportional to its mineral content. The Food and Nutrition Board of the U.S. National Academy of Sciences has r...
- How does vitamin D deficiency affect bones in humans?A deficiency in vitamin D results in poor mineralization of the bones of the skeleton, causing rickets in children and osteomalacia in adults.
5 days ago · cartilage, connective tissue forming the skeleton of mammalian embryos before bone formation begins and persisting in parts of the human skeleton into adulthood. Cartilage is the only component of the skeletons of certain primitive vertebrates, including lampreys and sharks. It is composed of a dense network of collagen fibres embedded in a ...
- The Editors of Encyclopaedia Britannica
2 days ago · Anyone seeking specific orthopaedic advice or assistance should consult his or her orthopaedic surgeon, or locate one in your area through the AAOS Find an Orthopaedist program on this website. This animation describes how the many parts of the spine — including the vertebrae, intervertebral disks, and facet joints — work together to allow ...
5 days ago · central nervous system, system of nerve tissue in vertebrates that consists of the brain and spinal cord. The central nervous system controls both voluntary movements, such as those involved in walking and in speech, and involuntary movements, such as breathing and reflex actions. It also is the centre of emotion and cognition.
- The Editors of Encyclopaedia Britannica
3 days ago · The peritoneal cavity is a potential space between the parietal and visceral peritoneum. It normally contains only a thin film of peritoneal fluid, which consists of water, electrolytes, leukocytes and antibodies. This fluid acts as a lubricant, enabling free movement of the abdominal viscera, and the antibodies in the fluid fight infection.
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4 days ago · Developed by anatomy faculty from The George Washington University, this resource is designed to teach human anatomy to students in the health professions. This resource focuses on the structural and functional relationships of the human body and the language that describes these relationships. The database includes radiographic, cross ...
4 days ago · Gross anatomy Osteology. The proximal radius comprises the articular radial head and, immediately distally, the radial neck and tuberosity. The radial shaft is thicker than the ulna and becomes thicker distally. It has a triangular cross section, with a lateral convexity, and a sharp medial (interosseous) border.
