What are osteoblasts - Study guides, Class notes & Summaries

Penn Foster Anatomy & Physiology Questions and Answers Already Passed What is the main function of epithelial tissue in the body? To protect, absorb, and secrete substances. What is the role of the myelin sheath in nerve cells? To insulate the nerve fibers and increase the speed of nerve impulses. Which system is primarily responsible for transporting nutrients, gases, and wastes throughout the body? Circulatory system What is the function of osteoblasts in bone tissue? T...

Osteoblasts ~ Primary bone-producing cells -young immature cell Osteocytes ~ Transformed osteoblasts that are surrounded by new bone tissue Osteoclasts ~ The major reabsorptive cells of the bone (breaks down bone) New bone is soft and hardens when it gets mineralized by _______ and _________ ~ calcium and phosphate Joints are also called _________ ~ articulations The functional units of muscle contractions are _________. They are made of _______ and ________ ~ Myofibrils; act...

Final Exam: BIOS 251 / BIOS251 (2024/ 2025 Update) Anatomy and Physiology I Review with Grade A Questions and Verified Answers| 100% Correct| -Chamberlain Q: The outer covering of bone that helps regulate bone thickness is known as the _________. Answer: Periosteum Q: The two ends of a long bone are known as the ______. Answer: Epiphysis Q: What occurs during endochondral ossification? Answer: Calcification Cartilage is replaced by bone Q: What is ...

Hondros BIO 117 Exam 2 with Complete Solutions Shaft of long bone diaphysis Site of longitudinal bone growth epiphyseal disc Bone-building cell osteoblast Site of blood cell production red bone marrow Tough outer covering of the bone periosteum Enlarged end of a long bone epiphysis Cancellous bone spongy bone Osteon haversian system Bone-eroding cell that helps in bone marrow remodeling osteoclast Hollow center of a long bone medullary cavity The epiphyseal di...

BIOS 1300 Exam 3 UPDATED Exam Questions and CORRECT Answers 4 types of bone cells - Correct Answer- -osteoprogenitor cells -osteoblasts -osteocytes -osteoclasts what are osteoprogenitor cells - Correct Answer- stem cells some osteoprogenitor cells move on to be ____________ - Correct Answer- osteoblasts

Mature bone matrix is composed of _________ material like collagen and proteoglycans and ________ material like hydroxyapatite. - organic, inorganic Describe the overall composition of bone tissue. - Bone consists of bone cells and matrix. The bones cells create the matrix, which is constantly being maintained and replaced. Which of the following surrounds cartilage? - perichondrium Bone tissue consists of extracellular bone ____ and bone cells. - matrix What are osteoblasts? - Bone-formin...

What does periodontology involve? Correct Answer: Diagnosis, tx, and prevention of the inflammatory and systemic disease processes affecting the periodontium What are the tissues of the periodontium? Correct Answer: Gingiva, PDL, Cementum and alveolar bone What are the functions of the periodontal ligament? Correct Answer: Transmits occlusal forces to bone, attaches teeth to bone, maintains position of gingival tissues, resists impact of occlusal forces, shock absorber for nerves/vessel...

Exam 4: NURS 615/ NURS615 (Latest 2024/ 2025 Update) Advanced Pharmacotherapeutics Review |Qs & As| 100% Correct| Grade A (Verified Answers) Q: How does metformin work? Answer: Decreases hyperglycemia by decreasing hepatic glucose production called hepatic gluconeogenesis. The average person with type 2 diabetes has three times the rate of gluconeogenesis, metformin treatment reduces this by over 1/3rd. The molecular mechanism of metformin isn't completely understood. In addition to s...

Describe the cells of the bone tissue - Answer--Osteogenic cells -Osteoblasts -Osteocytes -Osteoclasts What membrane lines the internal canals and the small cavities of the compact and spongy bones? - Answer-Endosteum What is the periosteum composed of? - Answer--Dense irregular connective tissue -Collagen fibers -Outer fibrous layer has fibroblasts -Inner layer has progenitor cells that become osteoblasts Describe the matrix of the bone tissue - Answer--Stony matter surrounding osteoc...

How many bones are in the human body? - 206 The rib cage is part of which skeleton? - Axial Skeleton How many vertebrae within the vertebral column can move independently? - 24 Movement between two adjacent vertebrae is made possible by what? - Facet Joints Wolffs law describes what? - The way bones can grow or shrink New bone material is formed by what? - Osteoblasts The strong connective tissue on the bottom of each foot is the: - Plantar Aponeurosis During the lowering phase of a bi...