Pulmonary vein

About blood Functions Blood is the biological fluid in our body that transports nutrients and oxygen to the cells, and also exports the metabolic waste product away from the cells. To ensure the supply of oxygen needed by our organs and tissues, there are four important steps: 1. The oxygen must be transferred from our lungs into the blood plasma 2. The oxygen is stored on the hemoglobin in the red cells 3. The oxygen is transported to our body cells via circulation. 4. The oxygen is released…

pancreas, and the small and large intestine. All the veins from the portal venous system will come together to form the portal vein which then carries substrate-rich venous blood to the liver. The blood in the liver will then be drained by the hepatic veins. Portal hypertension is associated with chronic liver diseases and is a result of an increase in blood pressure in the portal vein. There is a pressure gradient between the portal vein and the hepatic vein which is called the hepatic venous…

system operates our body by distributing and circulating blood to parts of our body. The blood in our body contains red and white blood cells, plasma, and platelets. Those are then distributed through the body to the pulmonary circulation. The human heart is the engine of the pulmonary circulation (Farley,2012). Blood is then delivered to our heart. Waste from the cells of our body is removed and blood is distributed to our vines (Farley, 2012). Therefore when we engage in cardiovascular…

Inhalation is the process of air being drawn into the lungs. During the process of inhalation the external intercostal muscles contract, therefore pulling the chest wall upwards and outwards, these intercostal muscles are between the ribs. As the air is drawn into the lungs, this causes for the thoracic cavity volume to increases, during inspiration the diaphragm also contracts, therefore moving the diaphragm downwards. There are three more muscles that contract during the process of inspiration…

One candidate biological system that may function to optimize social connections is parasympathetic activity, often conceptualized as the functioning of the vagus nerve and measured as respiratory sinus arrhythmia (RSA) or high-frequency heart rate variability (HF-HRV) at rest. The longest autonomic nerve in the human body, the vagus contributes to the innervation of the viscera, including the heart. Measures of cardiac vagal function like RSA have been used as a proxy for the parasympathetic…

and produces a partial pressure (PO2) which drives diffusion. The transport of O2 involves the transfer from the alveoli to the pulmonary capillaries in the lung and hemoglobin binding and transport. Also the dissociation from hemoglobin in the tissue capillaries transports O2. Through alveoli-to-capillary transfer in the lung, O2 moves from the alveoli to the pulmonary capillaries as a dissolved…

then the body is in danger of being greatly damaged. The cardiac cycle is what causes the BP to rise and fall. This occurs first through a ventricular contraction. When this contraction of the ventricles happens the blood is forced to go into the pulmonary artery and the aorta. This causes the pressure to increase…

Introduction Heart and lung work hand to hand daily, nonstop until we die. Some people may have experienced heart surgery because of many reasons. Some reasons for cardiac surgery is tumor, heart attack, blood clot in the heart, etc. After the surgery, there is a recovery process and the heart may not even fully heal for some patients. Since the heart may not be able to work optimally, respiration system of the patients may also be affected (Westerdahl et al, 2016). The surgery process itself…

Another primary nursing problem related to his hypervolemia is impaired oxygenation. This problem is exacerbated by Giovanni’s increasing cardiac demand, which resulted in a decrease in his cardiac output. His chest x-ray validated his condition, revealing an enlarged cardiothoracic ratio. According to Mensah et al. (2015 p.159), cardiothoracic ratio is the marker for confirming changes in an individual’s cardiac size. The pathophysiology of Giovanni’s impaired oxygenation is interlaced with…

Explain the significance of the thickness of the left ventricular wall. The right ventricle wall is small and thin containing deoxygenated blood. The left is just the opposite. The left ventricle is larger and thicker making it stronger than the right, but containing oxygenated blood. However, since it is pumping blood all around the body, it is at a more forceful rate (Oxford Journals, 2016). The major coronary vessels are on the surface of the heart. What is the advantage of that location?…