Cartilage of joints
main effect of mechanical stress
Mechanical stress is due to the resistance offered by various materials against physical distortion or damage. Thermal stress is caused due to the expansion of materials due to the variations in temperature with respect to reference value.
Osteoarthritis of lumbar spine (low back) is a very common form of arthritis that is commonly called "wear and tear" arthritis since it is usually due to the kind of stressful things that happen to people as they go through life (falls, heavy and awkward lifting, prolonged standing, prolonged forward flexion, pregnancy, poor posture, etc.). Osteoarthritis can affect any joint in the body, but is especially common in the lumbar spine because so much mechanical stress is applied to this area of the spine during the course of the and by most activities. Another term for lumbar osteoarthritis is lumbar spondylosis.
You might be thinking of a stress fracture; a fracture of a bone caused by repeated (rather than sudden) mechanical stress.
Desmosomes
everyday stress
They are all mechanical stresses. Push is a compressive stress. Pull is a tensile stress and Twist is a type of shear stress.
True.
Mechanical stress and PTH
Mechanical stress and hormones control bone remodeling.
Mechanical stress
ACTH