(Insert diagram 1 below) This is the exchange of gases occurring within our bodies by diffusion. It is necessary or vital to occur since we need oxygen from the air in the blood to remove the waste from our carbon dioxide. This explains why therefore a large surface area is required for the alveoli as it increases the rate at which oxygen is diffused. The large surface area of alveoli is also used and useful for energy
| | | Lesson 6 - The Cardio-Respiratory System DefinitionsThe cardio-respiratory system consists of the cardio vascular system (heart and blood vessels) together with respiratory system (lungs and air ways). These systems work to transport oxygen to the muscles and organs of the body and remove waste products including carbon dioxide. The HeartThe heart is a double pump. "Oxygen-poor" blood enters the heart from the vena cava to the right atrium, and flows down to the right ventricle. The first pump pumps "oxygen poor" blood to the lungs from the right ventricle of the heart via the pulmonary artery where it returns as "oxygen rich blood" via the pulmonary vein to the left atrium.
1) Coronary artery disease occurs when fatty deposits called plaque build up inside the coronary arteries. The coronary arteries wrap around the heart and supply it with blood and oxygen. When plaque builds up, it narrows the arteries and reduces the amount of blood that gets to your heart. This can lead to serious problems, including heart attack. 2) Coronary artery disease is usually caused by a build-up of fatty deposits on the walls of the coronary arteries.
Blood Pressure Blood pressure is the force created by the heart as it pushes blood into the arteries and the circulatory system. When the heart pumps, it causes blood to flow through the arteries and into the arterioles. As the blood goes through the arterioles, the arterioles either contract or expand altering both the amount of blood flow and the resistance to blood flow. If the arterioles remain in a contracted form, they create high blood pressure. The heart must then pump harder because the arterioles are exerting a greater resistance to blood flow.
These three tubes acted as our baseline. Tube 1 was used to fill up a smaller test tube which was placed into a spectrophotometer, then zeroed it out. The tube was then removed and cleaned out. Tubes 2 and 3 were mixed together (at this point a stop watch is started) then were used to fill another small test tube. This test tube was placed in the spectrophotometer, every thirty seconds a reading was taken, this continued on for three minutes.
This malfunctioning may have many causes: an increased pumping of the blood by the heart; an excess of volume of the blood improperly excreted by the kidney; an excess of hormones able to increase blood pressure; and constriction of the blood vessels. A high blood pressure that is consistently over the recommended range of 140 Systolic (3), over 80 Diastolic, (140/80) is considered high. The Diastolic number is of the most concern when considering high blood pressure (4). One blood pressure reading that is high does not mean you have high blood pressure. There are many reasons for pressures
The system was heated for 4-5 hr under vacuum at 200°C and then cooled down to the temperature (50°C) where we want to perform the adsorption study. Small doses of test gases consecutively introduced to the system and gradually increased up to 50 Torr until an equilibrium pressure was reached. Then the obtained differential heats of the test gases adsorption were recorded as a function of its coverage. Further, the manifold degassed under vacuum for almost 30 minutes; adsorption was conducted in the same manner. Finally, the number and strength of active surface are obtained from the difference between the adsorbed gases from the first and second
Microliter syringe is used for the introduction of samples into the column of gas chromatography (GC). The sample injection port, column and detector are heated about 50°C higher than the boiling point of the least volatile component of the sample (SHU, 2014). The temperature of the injection port and detector are usually slightly higher than the column. This is to increase the rate of vaporization of the injected sample and prevent the sample from condensed in the detector.
When CO2 is higher, pH is lower or acidic. When pH is acidic, hemoglobin is released to tissues that need oxygen. The relationship between oxygen affinity and pH Compare the biochemical structure of hemoglobin to myoglobin The molecular difference between normal and sickle forms of hemoglobin The difference between normal and sickle red blood cells at the cellular level How the diseased cells are different from normal red blood cells in their capacity to carry oxygen A normal RBC is round and concave shaped that easily moves through the bloodstream. A sickle hemoglobin releasing oxygen sticks together, forms fiber formations that causes the sickle appearance. This decreases the capacity to carry oxygen and also by not moving through smaller circulation easily causes blockages.
The oxygen rich air works its way to the alveoli and then diffuses across the thin membrane to the capillary network that surrounds each one, this distance is between 0.5-2.5µm. As the diffusion gradient changes, carbon dioxide diffuses into the lungs and is then expelled via exhalation. This is tidal ventilation as the flow of air is bi-directional through the lungs. This system has a