| A | B |
|---|
| skeletal system | system that consists of the bones, cartilages, and the joints and supports and protects the body |
| muscular system | system that is composed of skeletal, smooth and cardiac muscle tissue and functions in movement of the body |
| integumentary system | system consisting of the skin, hair, nails and sweat glands |
| nervous system | system of cells, tissues, and organs that regulate the body's responses to external stimuli |
| circulatory system | system consisting of the heart, blood vessels, and blood that circulates blood throughout the body, delivers nutrients and other essential materials to the cells and removes waste products |
| endocrine system | system that consists of glands and function to regulate body activities and release hormones |
| digestive system | system that breaks down food so that it can be absorbed by the body |
| reproductive system | system of gonads, ducts, and external genitals concerned with sexual reproductions |
| smooth muscle | control involuntary movements |
| voluntary muscle | allows movement; we can control these muscles |
| cardiac muscle | heart mucscle |
| tendons | attaches bone to muscle |
| ligaments | attach muscle to muscle |
| pore | small opening in the skin of an animal that serves as an outlet for perspiration |
