1106Topic3A - ANP 1106A Topic 3 Anatomy of the Skeletal System A Bony Tissues Chapter 6(omit details on embryonic bone formation fracture repair

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
ANP 1106A: Topic 3 Anatomy of the Skeletal System A. Bony Tissues
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 6 : Bone is a living dynamic tissue which responds to its environment: 1) Bone reacts to amount of force applied by increasing both the density & amount of roughening on bone or decreasing density when force is reduced or eliminated (eg: paralysis) ( deposition vs resorption ) 2) FUNCTIONS OF BONE 1) SUPPORT: 2) PROTECTION: 5) MOVEMENT: 6) MINERAL STORAGE: 9) BLOOD CELL FORMATION:
Background image of page 2
3.1: Compare the structure of bony tissues and cartilages CARTILAGE features between dense CT & bone tough, but flexible (i) avascular, devoid of nerve fibers (ii) ground substance contains lots of the GAGs chondroitin sulfate & hyaluronic acid - also chondronectin, (adhesive protein) (iii) collagen fibers (can have some elastic fibers) (iv) up to 80% H2O Some terms relating to cartilage: perichondrium: …………………………………………………………………. .…… In damaged areas, perichondrium can form scar tissue because poorly vascularized cartilage repairs badly; ossification of cartilage with aging!! chondroblasts: high MR: immature cartilage cells - actively form cartilage chondrocytes: low MR: mature cartilage cells  maintain cartilage lacunae: localized clusters of chondrocytes in cartilage - why clusters?? J. C arnegie, UofO
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Types of Cartilage: a) HYALINE CARTILAGE: most abundant; firm support + pliability; lots of collagen; appears glassy blue-white; chondrocytes - only 1-10% of volume Loc: embryonic skeleton, ends of long bones (epiphyseal plates in growing children), costal cartilages of ribs, cartilages of nose, trachea, larynx Fcn: supports & reinforces; b) ELASTIC CARTILAGE: like hyaline cartilage, but more elastic fibers Loc: external ear, epiglottis - why does this make sense?? Fcn: maintains shape while giving lots of flexibility c) FIBROCARTILAGE: rows of chondrocytes alternating with rows of thick collagen Loc: intervertebral discs, pubic symphysis, discs of knee joints (where hyaline cartilage meets a ligament or a tendon) Fcn: tensile strength with ability to absorb compressive shock J. C arnegie, 
Background image of page 4
BONE calcium salts give hardness & strength for support/protection of
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/08/2012 for the course ANP 1105 taught by Professor Carnegie during the Fall '08 term at University of Ottawa.

Page1 / 24

1106Topic3A - ANP 1106A Topic 3 Anatomy of the Skeletal System A Bony Tissues Chapter 6(omit details on embryonic bone formation fracture repair

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online