Blood, like the human blood illustrated in Figure 1 is important for regulation of the body’s systems and homeostasis. Blood helps maintain homeostasis by stabilizing pH, temper… See more

Red blood cells, or erythrocytes (erythro– = “red”; –cyte= “cell”), are specialized cells that … See more

White blood cells, also called leukocytes (leuko = white), make up approximately one percent by volume of the cells in blood. The role of white blood cells is very different than that o… See more

Hemoglobin is responsible for distributing oxygen, and to a lesser extent, carbon dioxide, throughout the circulatory systems of humans, vertebrates, and many invertebrat… See more

Answer the question(s) below to see how well you understand the topics covered in the previous section. This short quiz does notcount toward your grade in the class, and … See more