PNB 2264 Lecture Notes - Lecture 6: Zygomatic Bone, Spinal Stenosis, Xiphoid Process
16 Aug 2018
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Document Summary
The shape and structure of bones are dependent on: muscle activity, hormonal factors, age. Bones are not static structure they change as you change. You can predict what a person does, age/sex/damage and disease by looking at bones. 300 in babies and 206 as adults. Maximal bone mass/density is best at our point in life. Male heavier skeleton, more angular skull female pelvis is wider and shallower with enlarged pelvic outlet: men have a more circular, narrower and heart shaped. Bumps: eminence, process, tubercle, tuberosity, trochanter cavity, canal, foramen, fossa, fovea, labyrinth, sinus, meatus ridge, crest, line, spine, ramus. Articular process: projection that contacts adjacent bone, condyle, facet. Axial skeleton long axis of body skull: protection, movement, only lower jaw moves. Hyoid bone: attachment for tongue, connects to no other bone vertebral column, protection, movement, form thoracic cage, protection, movement, form. Upright posture: transmits head, trunk and arm weight to legs through hips.
