Hs131 Unit 4 Assignment

Voyage to the Right Lung
Jenna Bullard
HS130-06
Unit 4 Assignment
Kaplan University
06/10/2013

Everyone board the mini-sub! Lora has a bacterium that is invading the lower lobe of her right lung. We must go now! We must destroy this bacterium before it makes her sick! We cannot let that happen her Lora. As of right now, we are entering the right femoral vein, close to the groin. The right femoral vein is parallel with the femoral artery through the upper thigh and pelvic region. It is one of the larger veins in the body. The femoral vein returns blood into the leg to the heart through the iliac vein. The right femoral vein comes from the abdomen. This vein collects blood from many veins in the body such as the hepatic, lumbar, gonadal,
It then continues as the right external iliac which comes together to the inferior vena cava, also known as the posterior vena cava. It is a vein that carries deoxygenated blood from the lower body to the heart. From there, the inferior vena cava leads to the right atrium of the heart. The right atrium is only one of the four hollow chambers of the heart. It receives blood from the superior vena cava and the inferior vena cava. The blood that comes through these veins is low in oxygen (“Right Atrium”, n.d.). After passing through the right atrium, we pass through the right atrioventricular (AV) valve, also called the tricuspid valve, and then we shall go through the right ventricle, lower right-hand chamber of the heart that pumps blood from the right atrium into the pulmonary arteries then to the lungs, to the pulmonary valve, or the pulmonary semilunar valve. The valves of the pulmonary semilunar valve opens when the right ventricle contracts. When the muscles
In the right lung, there are three lobes, the superior, middle, and inferior. It is divided into three lobes by two interlobular fissures, transverse fissure and oblique fissure (Taylor, n.d.). The superior and middle lobe are separated by a transverse fissure and the middle and inferior lobe are separated by an oblique fissure (“Structure of the Lungs”, n.d.). The left lung and right lung are not the same though. As you see, the right lung has only three lobes, as the left lung has two. They are different in size as the left lung is smaller than the right. The reasoning for this is because your hearts sets in between the lungs so the heart uses some of the space that your left lung is (Taylor, n.d.). The function of the lungs is pulmonary ventilation, or breathing. Air is inhaled through your nostrils which pass through your trachea and enters the bronchi. Bronchi are two tubes that carry air to the lungs. Bronchioles are smaller branches of bronchi that split off (“Structure of the Lungs”, n.d.). Bronchioles divide into even smaller structures to form respiratory bronchioles which lead to the alveolar ducts. Then there are air sacs called alveoli. They are the basic functional units of lungs and have simple squamous epithelial cells. Alveoli cover about 60-70m. Oxygen is exchanged for carbon dioxide from the bloodstream by microscopic structures of the lungs called alveoli. Pleura protects the lungs with a