RAD ANATOMY (axia)

• axial skeleton - provides protection and support for the brain, spinal cord, and vital organs and a surface for muscles to attach.provides protection and support for the brain, spinal cord, and vital organs and a surface for muscles to attach.
• 26 bones - vertebral column
• intervertebral disc - flattened plates of fibrocartilage tat are interposed between the vertebrae
• cervical vertebrae - form the neck
• cervical vertebrae - all have transvers foramen
• thoracic vertebrae - costal pits for rib attachment
• thoracic vertebrae - circular vertebral canal
• lumbar vertebrae -presence of mamillary process and accessory process
• lumbar vertebrae - triangulat vertebral canal
• sacrum - inverted triangular bone situated between the hips
• coccyx - tail bone
• sternum - breast bone: 3 parts: manubrium, body, xiphoid process
• ribs - narrow arched flat bones with 2 ends
• vertebral - posterior attaches with thoracic cartilages
• sternal - anterior attaches with costal cartilages
• true ribs - ribs with costal cartilages direcly attach to the sternum
• 22 bones - skull
• 8 - cranial
• 14 - facial
• hyoid bone - small, u-shaped: lies in front of the neck
• hyoid bone -base of the tongue is attached
• hyoid bone lies bbetween mandible and thyroid cartilage
• in autoditory ossicles have a small bones of ear stapes, incus, malleus