by: Kayla Edney

any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.

a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.

a group of organs that work together to perform one or more functions

consisting of bones and other connective tissues

a structure in the human or animal body at which two parts of the skeleton are fitted together

a short band of tough, flexible, fibrous connective tissue that connects two bones or cartilages or holds together a joint.

the membrane-lined cavity behind the nose and mouth, connecting them to the esophagus

the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box.

a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe.

any of the major air passages of the lungs that diverge from the windpipe.

Any of the tiny air-filled sacs arranged in clusters in the lungs

is the part of the nervous system consisting of the brain and spinal cord.

Of or relating to the surface or outer part of a body or organ

a specialized cell transmitting nerve impulses; a nerve cell.

of or relating to the heart and blood vessels.

any of the muscular-walled tubes forming part of the circulation system by which blood (mainly that which has been oxygenated) is conveyed from the heart to all parts of the body.

any of the fine branching blood vessels that form a network between the arterioles and venules

any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.

of or relating to the lungs

denoting the part of the circulatory system concerned with the transportation of oxygen to and carbon dioxide from the body in general,

efers to the collection of glands of an organism that secrete hormones directly into the circulatory system

an organ in the human or animal body that secretes particular chemical substances for use in the body or for discharge into the surroundings.

a regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action.

a large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic processes.

the outer layer of cells covering an organism, in particular.

the thick layer of living tissue below the epidermis that forms the true skin,

a veinlike vessel conveying lymph in the body.

each of a number of small swellings in the lymphatic system where lymph is filtered and lymphocytes are formed.

an abdominal organ involved in the production and removal of blood cells in most vertebrates and forming part of the immune system.

either of two small masses of lymphoid tissue in the throat, one on each side of the root of the tongue.

each of a pair of organs in the abdominal cavity of mammals, birds, and reptiles, excreting urine.