4/16/13
A&P
SKELETAL PROJECT!
This system has 206 bones and associated cartilage, tendons, and ligaments. Because bone is unbending, it gives the body a structure, maintains its shape, and protects essential organs. Bones provide a place for muscles and supporting structures to attach, and, with the movable joints. A joint is a place of union between two or more bones that may be movable or immovable. Bone also functions as a place for mineral storage and blood cell formation. Tendons and ligaments are strong bands of fibrous connective tissue that attach muscles to bones, and bones to bones, respectively.
Cranial bones: (1) Frontal bone (2) Ethmoid bone (3) Sphenoid bone (4) Temporal bone (2) (5) Parietal bone (2) (6) Occipital bone
The frontal bone: is located in the front of the head and connects with forehead. It forms the front part of the skull and protects brain. The frontal bone consists of two parts, the vertical portion known as the squama frontalis and the horizontal portion, known as the pars orbital. The vertical portion connects with the forehead while the horizontal connects with eye and nose cavities.
The Ethmoid Bone: is one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity .Skull bone located behind the nose. The ethmoid bone's functions include separating the nose from the brain and forming part of the orbits of the eyes.
The Sphenoid bone: A prominent, irregular, wedge-shaped bone at the base of the skull. The sphenoid bone has been called the 'keystone' of the cranial floor because it is in contact with all of the other cranial bones. It’s situated at the front middle of the skull in front of the temporal bone and basilar part of the occipital bone.
Temporal bones: Either of a pair of bones that form part of the side of the skull on each side and enclose the middle and inner ear. There are