the basic unit of structure and function in an organism

connective tissue that covers end of bone and acts as a shock absorber

when your rib muscles and diaphragm contract or relax to allow air in or out

a process by which an organism's internal environment in kept stable in spite of changes in the external environment

a group of similar cells that perform the same function

a place in the body where two bones meet

a structure that is composed of different kinds of tissue to perform a specific job

connective tissue that attaches bone to bone

connective tissue that attaches muscles to bone

muscles of the heart and internal organs that are NOT under your conscious control

muscles that are under your conscious control

a system that moves oxygen from the outside environment into the body

the function of this system is to provide shape and support, allow movement, protect internal organs, produce red blood cells, and store minerals

the human body's largest organ that is designed to protect you