Question | Answer |
epidermis | A tissue that serves as a protective covering in plants; the outer layer of tissue in humans and many animals |
dermis | The thick inner layer of the skin |
subcutaneous layer | The layer of fat and connective tissues below the dermis of the skin that cushions and insulates the body and attaches the skin to the muscles underneath |
melanin | A dark brown or black pigment that colors human skin |
cartilage | A flexible supporting issue that makes up part or all of some animals' skeletons |
bone | The connective tissue that forms part of the strong supporting structure of vertebrates |
osteon | A microscopic unit of a bone consisting of a blood vessel with layers of hard, nonliving material around it |
bone marrow | A tissue found in the marrow cavity of some bones that makes red blood cells and gradually turns yellow with age |
ligament | A band of connective tissue that holds bones together at a joint |
tendon | A band of connective tissue attaching muscle to bone |
joint | A place where two or more bones meet |
voluntary muscle | A muscle that can be controlled at will |
skeletal muscle | Striated, voluntary muscle tissue that attaches to and moves the skeleton |
striated muscle | Muscle tissue that displays a pattern of light and dark bands |
involuntary muscle | A muscle controlled automatically b the brain, without conscious effort |
smooth muscle | Muscle tissue that lacks striations and forms the walls of many internal organs |
cardiac muscle | The striated, involuntary muscle found in the heart |