SKELETAL SYSTEM HAPS QUESTIONS WITH CORRECT ANSWERS A+ 2025-26

SKELETAL SYSTEM HAPS QUESTIONS WITH CORRECT ANSWERS A+ 2025-26 List and describe the cellular and extracellular components of bone tissue - ANS-Bone tissue is composed of a compact bone exterior and spongy bone interior. The compact bone is made of tightly packed osteons (haversian system) (trees). Within houses... - Lamellae (rings) - Lacunae that hold osteocytes - Canaliculi connect lacunae - In center is the Central canal, where blood vessels and nerves run through the central and perforating canals Spongy bone is made of - Trabeculae in marrow cavity and are covered in endosteum - Contain concentric lamellae housing canaliculi and lacunae with osteocytes - No canals (blood vessels or nerves) On the outside of compact bone, we find - Circumferential lamellae - Periosteum containing osteoblasts, perforating fibers and blood vessels Lamellae (concentric lamellae) - ANS-"Tree rings" Collagen fibers of adjacent lamellae run in opposite directions, enabling the osteon to resist twisting and bending forces in more than one direction Lacunae - ANS-Small cavities that contain osteocytes Canaliculi - ANS-