059 An Introduction to the Respiratory System

IMPORTANT: There was one error in this video. The pulmonary ARTERY takes the deoxygenated blood from the right ventricle to the lungs and the pulmonary VEIN brings the oxygenated blood back to the left atrium. I said those two things backward. My apologies for the mixup.

In this episode, Leslie introduces the respiratory system, showing how oxygen enters the mouth or nose, goes into the pharynx, to the trachea, bronchi, bronchioles and then alveoli, and shows how it enters the bloodstream via the capillaries.