Straighterline Anatomy and Physiology 1 Lab BIO201L Lab 6 The Skeletal System Worksheet 2023

Straighterline Anatomy and Physiology 1 Lab BIO201L Lab 6 The Skeletal System Worksheet 2023 Student Name: Click here to enter text. Access Code (located on the lid of your lab kit): Click here to enter text. Pre-Lab Questions: 1. List the functions of the skeletal system. The skeletal system serves several important functions in the body. Firstly, it provides structural support, giving shape and form to the body and supporting the organs. Secondly, it facilitates movement by serving as attachment points for muscles and allowing for joint mobility. Additionally, the skeletal system protects vital organs, such as the brain, heart, and lungs, from injury. It also plays a crucial role in hematopoiesis, the production of blood cells, taking place in the bone marrow. Moreover, the skeletal system stores minerals, such as calcium and phosphorus, which are essential for various physiological processes. Finally, the skeletal system contributes to maintaining homeostasis by regulating the levels of minerals in the blood and participating in acid-base balance. 2. What material contributes the greatest to the compressive strength of bone? calcium carbonate 3. Briefly describe the process of bone remodeling. Bone remodeling is a continuous and dynamic process that involves the removal of old bone tissue and the deposition of new bone tissue. It is carried out by two types of cells: osteoclasts, responsible for bone resorption, and osteoblasts, responsible for bone formation. The process begins with the activation of osteoclasts, which break down and remove old or damaged bone tissue through a process called resorption. This creates small cavities or "Howship's lacunae" in the bone. Subsequently, osteoblasts migrate to the resorption site and start synthesizing new bone matrix, which consists of collagen fibers and mineral salts. This process is known as bone deposition. Osteoblasts eventually become surrounded by the newly formed bone matrix and transform into osteocytes, which maintain and regulate the bone tissue. Bone remodeling occurs throughout life, helping to repair micro-damage, maintain bone strength, and adapt to mechanical stresses. It is influenced by various factors, including hormonal regulation, mechanical loading, and calcium homeostasis.