Stress and Strain
This is a body's deformation in response to applied force.
What is strain?
This is a major function of the skeletal system.
What is structural support?
What is levers for muscles?
What is protection of organs?
What is reservoir for growth factors?
What is hematopoiesis?
An applied force divided by its cross sectional area (F/A)
What is stress?
These cells are responsible for breaking bone down.
What are osteoclasts?
Your athlete is holding a pair of dumbbells with their shoulders abducted 90 degrees (T-pose). Their humerus is experiencing (compressive, tensile, or shear) stress.
What is shear stress?
This law indicates that bone tissue will change in response to changes in stress and/or strain.
What is Wolff's Law?
Your pinky finger has a circular cross section with radius 0.5cm (0.05m). The stress in that bone under 1000N of force is (area = pi * r^2):
What is ~127,000N/m^2?
1) Bone remodeling occurs via this mechanism.
2) Bone growth in length occurs via this mechanism.
3) Our odd bones are formed via this mechanism.
4) Bone growth in width occurs via this mechanism.
1) What are cutting cones?
2) What is endochondral formation?
3) What is intramembranous formation?
4) What is appositional formation?
During PT, your patient's tibia lengthens from 0.405m from 0.425m (strain = (Ldeformed-Loriginal)/Loriginal). Based on the following image, their tibia is in the (elastic, plastic, or fracturing) region?
What is fracturing region?