BIOS 251 WEEK 5 EXAM QUESTIONS FULLY SOLVED LATEST VERSION 2025 (ALREADY PASSED)

BIOS 251 WEEK 5 EXAM QUESTIONS FULLY SOLVED LATEST VERSION 2025 (ALREADY PASSED) Bones are repositories for calcium and phosphorous. True False - Answers True During adulthood, once bone tissue is formed, it will not change. True False - Answers False Bones under heavy stress are often weaker and thinner than bones under less stress. True False - Answers False Osteoblasts come from mesenchymal precursor cells. True False - Answers True Osetocytes monitor and maintain the bone matrix. Osteoclasts break down the bone matrix. True False - Answers True Osetons are composed of concentric rings and are found in spongy bone. True False - Answers False The all of the following are part of the bone matrix except: Collagen Muscle fibers Hydroxyapatite Calcium and Phosphorous crystals - Answers Muscle fibers Osteons are found in _____, while trabeculae are found in _____. broken, whole whole, broken compact, spongy spongy, compact - Answers compact, spongy Trabeculae are filled with air haversian system blood vessels periosteum yellow and red marrow - Answers yellow and red marrow The coating around bones is called the Haversian system periosteum Hydroxyapatite Trabeculae - Answers periosteum Bone growth and remodeling ends in men at age 25. True False - Answers False Bones grow in width via osteoclast activity at both the periosteum and endosteum. True False - Answers True When the epiphyseal line is formed in limb bones, the individual has reached adult stature. True False - Answers True During expansion of limb bones, the epiphyseal plate shrinks, pulling the epiphysis towards the diaphysis. True False - Answers False Bones widen through expansion of osteons in compact bone, close to the periosteum. True False - Answers True Osteons are formed through the creation of a cavity that contains blood vessels and an internal coating of endosteum. True False - Answers True During childhood, bones growth in diameter by