ANSWERS GRADED A+
✔✔Circulatory System - ✔✔carries materials to and from the cells
✔✔Excretory System - ✔✔rids the body of wastes
✔✔Immune System - ✔✔protects the body from disease
✔✔Nervous System - ✔✔coordinates the activities of the body
✔✔Skeletal System - ✔✔provides support and rigidity to the body and stores calcium
✔✔Appendicular Skeleton - ✔✔one of the divisions of the skeletal system that includes
the appendages
✔✔Diaphysis - ✔✔long, straight shaft of a long bone
✔✔types of bones - ✔✔irregular, short, long or flat
✔✔Trapezius - ✔✔shoulder muscles that allow you to pull your shoulders back and help
pull your head up
✔✔Spongy bone - ✔✔lightweight, porous bone that consists of an intricate network of
tiny struts and girders
✔✔Motor unit - ✔✔group of muscles cells connected to a single motor neutron
✔✔Thoracic cavity - ✔✔the body cavity that contains the heart and lungs
✔✔Epithelial tissue - ✔✔type of tissue that covers and lines body parts
✔✔Muscle Atrophy - ✔✔most common cause is muscle atrophy
✔✔Fascia - ✔✔the tough translucent sheath that surrounds a skeletal muscle and binds
it together
✔✔Smooth muscle - ✔✔type of involuntary muscle that is not striated
✔✔Ligaments - ✔✔strong bands of fibrous connective tissue that connect bones to
other bones
✔✔Ball and Socket joint - ✔✔the most freely movable joints in the body