Skeletal+System+HW+CH

=**Skeletal System**= =SCI Human Biology - 2= =Assigned: 2/21 Due: 2/22= =Skeletal System= (1) A bone is an organ composed of what types of tissues? (Be detailed, pictures nice) Bones are made of both fibrous and connective tissues. (2) Describe the make up of LONG bone. Yellow bone marrow is in the medullary cavity of the diaphysis. Compact bone makes up the wall of the diaphysis. The majority of the long bone is covered by the periosteum. Hyaline cartilage covers the ends of the long bone. (3) What types of cells are involved in bone growth, remodeling, and repair?
 * Osteoblasts form bones
 * Osteocytes remodel
 * Ostoclasts repair
 * [[image:osteoclasts.jpg width="392" height="299"]]

(4) What are two types of ossification. (5) What are the four steps required in fracture repair? (6) What are the functions of the skeleton? (7) How are joints classified? (8) Give examples of different types of synovial joints and the movements they permit.
 * 1) Intramembranous
 * 2) Endochondral
 * 1) Hermatoma formation
 * 2) Fibrocartilaginous callus
 * 3) Bony callus
 * 4) Remodeling
 * 1) Supports the body
 * 2) Protects soft body parts
 * 3) Produces blood cells
 * 4) Stores fat
 * 5) Permits flexible movements
 * Fibrous joints are immovable
 * Cartilaginous joints are slightly movable
 * Synovial joints are freely movable
 * The ball and socket joints at the hips and shoulders allow movement in all planes
 * The elbow and knee joints do the same