Lecture14 - OBJECTIVES To understand bone microstructure:...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
OBJECTIVES To understand bone microstructure: How arrangement of collagen fibers affects the mechanical behavior of bone? What are the different cells present in bone? What are the mechanisms that alter bone’s shape and amount? How does age-related bone loss occur?
Background image of page 1

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

View Full DocumentRight Arrow Icon
Collagen Fiber Orientation Gebhardt’s (1901/Ascenzi 1976) Fiber within each lamella have a specific orientation. Orientation changes abruptly from one lamella to the next. Three type of lamellar systems (L, T and A)
Background image of page 2
Collagen Fiber Orientation Ranvier (1889)/Zeigler (1903)/Marotti (1993) Difference lies in the amount not in the orientation. Collagen rich and collagen deficient layers give bone its lamellar appearance.
Background image of page 3

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

View Full DocumentRight Arrow Icon
In-class Exercise Collagen Fiber Orientation Independently address the assigned question (10 minutes). Form group of four, present and discuss each question (10 minutes).
Background image of page 4
Loading of Femur
Background image of page 5

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

View Full DocumentRight Arrow Icon
Mechanical properties of lamellar systems Tension Type L Strength 116 MPa; Mod 11.9 GPa Type A Strength 96 MPa; Mod 5.6 GPa Compression Type L Strength 112 MPa; Mod 6.5 GPa Type A Strength 167 MPa; Mod 9.5 GPa
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 22

Lecture14 - OBJECTIVES To understand bone microstructure:...

This preview shows document pages 1 - 7. Sign up to view the full document.

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