Bio 251 Skeletal System Bone Tissue latest Upload Exam 2025

Bio 251 Skeletal System Bone Tissue latest Upload Exam 2025 Which of the following is a known function of the skeletal system? (Select all that apply) a.Calcium homeostasis b.Thermoregulation c.Lipid storage d.Blood cell production e.Protection of the heart and lungs Calcium homeostasis Lipid storage Blood cell production Protection of the heart and lungs Description of Osteoprogenitor cells Stem cells that give rise to other cells Description of Osteoblasts Lay down the bone matrix Description of Osteocytes Maintain the bone matrix Description of Osteoclasts Dissolve the bone matrix Depressions or grooves Meatus Fissure Foramen Fossa Projections or elevations BIO 251 BIO 251 Process Ramus What type of bone is humerus? Long What type of bone are the ribs? Flat What type of bone is carpal? Short What type of bone is pelvic? Irregular What type of bone is sternum? Flat What type of bone is metacarpal? Long What type of bone is fibula? Long What type of bone is vertebrae? irregular What type of bone is clavicle? long The shaft of a long bone is known as the ______________. Diaphysis The outer covering of bone that helps regulate bone thickness is known as the ______________. Periosteum The two ends of a long bone are known as the ______________. Epiphysis Which of the following occurs during endochondral ossification? (Select all that apply) a.Bone remodeling BIO 251 BIO 251 b.Calcification c.Collagen is replaced by bone d.Cartilage is replaced by bone e.Osteopenia Calcification Cartilage is replaced by bone Which of the following is NOT a true statement regarding epiphysial plate closure? a.Cartilage is completely replaced by bone b.Osteoblasts are replaced by chondrocytes c.Long bones have reached their adult length d.Elongation of bone has ceased e.Epiphysial plate disappears Osteoblasts are replaced by chondrocytes Which of the following is a TRUE statement regarding bone REMODELING? a.Chondrocytes are replaced by osteoblasts b.New bone is formed during development c.Mature bone adds and removes from the thickness of bone d.A soft and hard callus is formed Mature bone adds and removes from the thickness of bone Which of the following will cause bones to become weak, fragile, and porous? a.Regular exercise b.Prolonged period of inactivity c.A diet rich in calcium d.Regular “stress” on bones e.A diet rich in phosphorous Prolonged period of inactivity Scapula appendicular Vertabr