BIOL 2021 Lecture Notes - Lecture 4: Ossification, Osteoporosis, Clavicle

• School: University of Windsor
• Department: Biological Sciences
• Course: BIOL 2021
• Professor: Sara Mcnorton

Document Summary

Consists of 80 bones that lie along the longitudinal axis. Includes the skull, vertebral column and bony thorax. Skeletal cartilages: hyaline cartilage support along with flexibility and resilience, elastic cartilage more flexible than hyaline, fibrocartilage highly compressible and has great tensile strength. Muscle attachment for jaw, neck and facial muscles. Hold together by immovable joints called sutures: 14 facial bones: Anchor the muscles of the face and hold the teeth: the cranium encloses the brain and provides attachment sites for some head and neck muscles, formed from 8 large bones: Temporal bones inferior to parietal bones to form inferolateral portion of the skull. Parietal bones form superior and lateral parts of the skull. Frontal bone forms forehead and roofs of the orbits (eye socket) Occipital bone forms posterior portion of cranium and cranial base, articulates with temporal and parietal bones, foramen magnum located at its base. Sphenoid bone spans width of cranial floor, resembles wings.