Osteoclasts resorb and osteoblasts build bone continuously, controlled by hormones and stress.
Wolff's law: bone adapts to load. Parathyroid hormone raises blood calcium by activating osteoclasts; calcitonin lowers it. Osteoporosis arises when resorption outpaces formation, common after menopause.
Mechanical loading strengthens bone. Calcium and vitamin D are needed. Hormones such as oestrogen protect bone.
Example: weight-bearing exercise helps prevent osteoporosis.
Osteoclasts resorb and osteoblasts build bone continuously, controlled by hormones and stress.
Bone Remodelling is one of the 51 topics in Human Physiology. It is rated Intermediate, so it suits learners who already know the core vocabulary. Related topics in this area include Exercise Adaptations, Blood Pressure, Blood Glucose Regulation.
Astronauts lose bone density in microgravity.
Work through the Beginner topics in Human Physiology first, such as Homeostasis, Tissues and Organs, Skeletal System, then return to Bone Remodelling. Intermediate topics assume the Beginner vocabulary.
The closest topics to Bone Remodelling are Exercise Adaptations, Blood Pressure, Blood Glucose Regulation, Blood Clotting. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Bone Remodelling. To practise the whole of Human Physiology, use the Human Physiology quiz.
Bone Remodelling: Osteoclasts resorb and osteoblasts build bone continuously, controlled by hormones and stress. Exercise Adaptations: Training increases stroke volume, capillary density and mitochondrial content in muscle. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Exercise Adaptations and explain the difference aloud. Finally, take the Human Physiology quiz and come back to this page for any question you miss.
Training increases stroke volume, capillary density and mitochondrial content in muscle.
❤️ Human PhysiologyThe force of blood against vessel walls, recorded as systolic over diastolic pressure.
❤️ Human PhysiologyInsulin lowers and glucagon raises blood glucose through negative feedback.
❤️ Human PhysiologyPlatelets and fibrin form a clot to seal damaged vessels.
❤️ Human Physiology