Health Sciences 2300A/B Lecture Notes - Lecture 4: Central Nervous System, Epithelium, Periosteum

• School: Western University
• Department: Health Sciences
• Course: Health Sciences 2300A/B
• Professor: Christopher William James Melling

Document Summary

Looking at the ends of bones and how they articulate - joints. Functional classifications: understanding what the joints do, diathrotic found in appendicular skeleton. Synarthrotic and amphiarthrotic joints in axial skeleton - does(cid:374)"t (cid:396)e(cid:395)ui(cid:396)e a lot of (cid:373)o(cid:448)e(cid:373)e(cid:374)t: synarthroses. Immovable: ex. sutures in the skull, amphiarthroses, slightly moveable, ex. the ribs and sternum. Structural classification: based on what composes the joints, what hold sit together and what allows it to function. Little to no movement - less friction: no movement = okay to not have hyaline cartilage, dense connective tissue (causes little to no movement, ex. a ligament holding the two bones together. Synovial joints: have a joint cavity, hyaline, and lots of movement. Joint cavity - key defining feature: ca(cid:374)"t see the (cid:271)o(cid:374)es a(cid:396)ti(cid:272)ulati(cid:374)g (cid:449)ith o(cid:374)e a(cid:374)othe(cid:396, majority of joints in the body are synovial, designed to move. In the skull: ca(cid:374)"t see (cid:449)hat is holdi(cid:374)g the (cid:271)o(cid:374)es togethe(cid:396, tiny ligament.