the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant

the entire physical structure of an organism (an animal, plant, or human being)

large and complicated reddish-brown glandular organ located in the upper right portion of the abdominal cavity; secretes bile and functions in metabolism of protein and carbohydrate and fat; synthesizes substances involved in the clotting of the blood; synthesizes vitamin A; detoxifies poisonous substances and breaks down worn-out erythrocytes

the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body

the blood flowing through the circulatory system

a thin coagulable fluid (similar to plasma but) containing white blood cells (lymphocytes) and chyle; is conveyed to the blood stream by lymphatic vessels

the system of blood vessels and structures through which blood moves in a fetus

the blood vessels or arrangement of blood vessels in an organ or part.

the entire physical structure of an organism (an animal, plant, or human being)

large and complicated reddish-brown glandular organ located in the upper right portion of the abdominal cavity; secretes bile and functions in metabolism of protein and carbohydrate and fat; synthesizes substances involved in the clotting of the blood; synthesizes vitamin A; detoxifies poisonous substances and breaks down worn-out erythrocytes

the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body

the blood flowing through the circulatory system

a thin coagulable fluid (similar to plasma but) containing white blood cells (lymphocytes) and chyle; is conveyed to the blood stream by lymphatic vessels