BIOC32H3 Lecture Notes - Lecture 5: Pisiform Bone, Fot, Humerus
Document Summary
The skeletal system: axial division (based on chapters 6, 7 and 8) The skeleton is divided into 2 portions: the axial skeleton and the appendicular skeleton. It is a rigid framework of 206 bones , muscles and organs are attached by tendons and: bones act as levers (with joints acting as pivots) when muscles contract and move body ligaments. The axial skeleton: - composed of bones along the central axis of the body 80 bones. Framework that supports and protects organs in the dorsal and ventral body cavities. Protects special sense organs for taste, smell, hearing, balance, and vision. Adjust the posture of the head, neck, and trunk. Associated bones: 7 individual bones (auditory ossicles 3 per ear and hyoid bone) Cranial bones form cranium, encase and protect brain (8 bones) Parietal bones (2) either side of the top of head. Temporal bones - (2) temples on either side of the head.
