How do bicarbonate ions play a role in regulating hemoglobins affinity for oxygen and carbon...

Learn about oxygen transport in the blood. Understand what transports oxygen in the blood, what hemoglobin carries, and how oxygen is transported in the blood.

Learn about protein structure and function. Study the bonds of the tertiary structure of a protein, and discover what determines the shape of a protein.

Learn about the juxtaglomerular complex and apparatus. Also, learn about the macula densa, juxtaglomerular cells, and extraglomerular mesangial cells.

Learn where the adrenal glands are located, their function, and which system they're in. Find out about the medulla, the cortex, and the functions of each.

Learn about the importance of ATP, the roles of creatine phosphate and creatine phosphokinase in muscle metabolism, and the function of glycolysis.

Learn about types of lipids. Study examples of the classes of lipids, examine the structure and forms of lipids, and discover why lipids are important for nutrition.

Tetanus is a potentially deadly disease that is passed into the human body through puncture wounds from rusted metal. This lesson will discuss tetanus, how someone becomes infected by this bacteria and the symptoms, treatments and prevention, and the dangers of tetanospasmin.

Vitamin B12, or cobalamin, requires a protein called an intrinsic factor in order to be absorbed quickly into the body. Those who have a lack of intrinsic factor can't absorb enough B12, which leads to a condition called pernicious anemia. Discover vitamin B12, intrinsic factor, the symptoms of B12 deficiency and toxicity, the effect diet can have on B12 ingestion, and the B12-related disease called atrophic gastritis.

What is pulmonary surfactant? Learn about surfactants in the lungs, surfactant function, what produces surfactant, and how this helps alveolar surface tension.

What is the B cell? This lesson describes the cell's structure, function, types, disorders and the relationship between B and T cells in the immune system.

In this lesson, learn about aldosterone, an adrenal cortex hormone. Understand how aldosterone maintains homeostasis through the regulation of potassium and sodium levels.

Learn what gas exchange is. Examine laws that affect diffusion and the partial pressure gradient, and identify how to calculate the partial pressure of oxygen.

Learn about helper T cells. Discover the helper T cell's function, helper T cell activation, the types of T helper cells, and how these cells are formed.

Learn about the hyperparathyroidism, and see the causes and symptoms of the primary and secondary hyperparathyroidism. Find the primary vs secondary hyperthyroidism.

In vertebrates, hemoglobin is the protein that transports oxygen through the circulatory system. Explore hemoglobin's role, discover its structure, and learn how it releases oxygen to the body.

What is the major function of the urinary system? Learn the urethra function, define bladder and ureter medical terms, and learn the urinary meatus definition.