Structure and Function of the Body Chapter 7 (Skeletal System) With complete answers.

Function of the Skeletal System correct answers Support framework, protection inside body cavities, movement, storage of calcium and hematopoiesis. Hematopoiesis correct answers Blood cell formation. Types of bones correct answers Long, short, flat and irregular. Example of Flat bone: correct answers Skull (patella) Irregular bone example: correct answers Vertebrae (spinal cord) Carpals correct answers short bones, wrist. Long bones correct answers Humerus, upper arm. Diaphysis correct answers Shaft, hollow tube made of hard, compact bone. Medullary Cavity correct answers Hollow area inside diaphysis; yellow bone marrow. Epiphyses correct answers Ends- spongy, red bone marrow. Articular cartilage correct answers Covers epiphyses as a rubber cushion (padding) so bones don't grind where they meet. Periosteum correct answers Surrounding the bone (strong membrane covering the long bone. Endosteum correct answers Thin membrane lines medullary cavity (lines inner bone). Bone tissue structure correct answers spongy or cancellous/ compact or dense. Osteons correct answers Basic unit of bone cells; rings like an onion. Osteocytes correct answers Many living bone cells. Chondrocyte correct answers Cartilage tissue, no blood vessels, collagen fibers, rebuilds slowly after injury. Bones start out as a cartilage then correct answers after cartilage calcifies bones form. Osteoblasts correct answers Form new bones. Osteoclasts correct answers Reabsorb bone.