These are the only veins which carry oxygenated blood. The Systemic Circulation: The systemic or general circulation constitutes the circulation of blood from the left ventricle through the main artery, the aorta to all the parts of the body and is again returned to the right side of the heart by the superior and inferior Venacava. Oxygenated blood leaves the left ventricle through the aorta which branches and reaches every part of the body supplying 02 and nourishment to the body tissues. Similarly the deoxygenated blood is carried through the veins which eventually forms superior and inferior Venacava and gets poured into the right artrium of the heart. Portal
P3- Outline the gross structure of all the main body systems Cardiovascular system The cardiovascular system consists of the heart, blood vessels and transports blood around the body. It is also responsible for transporting oxygen, nutrients, hormones, and cellular waste products throughout the body. The cardiovascular system is controlled by the heart. The Heart: This is the main pump of the cardiovascular system. The heart is the pump that pushes the blood around the body.
The wave passes to the atrioventricular node where it is passed down the septum down specialised fibres known as the bundle of His. This occurs after a short delay to allow all the blood to flow from the atria to the ventricles. This wave passes down the bundle of His to the Apex of the heart where the Ventricles contract upward, pumping blood out of the ventricles into the pulmonary artery and aorta through the semilunar valves. Here the blood is then passed round the body where it
A thick central muscular wall, the septum, divides the heart into right and left halves. Each half consists of an upper chamber, called an atrium, and a lower chamber, called a ventricle. The right atrium receives deoxygenated blood from the entire body via two large veins called the vena cava. This blood is transferred to the right ventricle and pumped into the lungs via the pulmonary artery to be oxygenated and to lose carbon dioxide. The left atrium of the heart receives oxygenated blood from the lungs via the pulmonary veins; this blood is transferred to the left ventricle and then pumped to all tissues in the body.
After leaving the larynx passes into the trachea. Air from the trachea passes through the larger right and smaller left bronchi that descends into the right and left lungs. In the lungs, the bronchi re-branches into the secondly bronchi that eventually re-branches into tiny bronchioles. Air movement into the tiny bronchioles finally terminates in a cluster of alveoli, where the gases are exchanged. * * * What role does the trachea and surfactant play within the respiratory system?
The cilia are in charge of pushing the with trapped foreign matter to the throat where it can be swallowed/ digested or expectorated. 5. How are the epiglottis and the larynx related in structure and in function? The larynx is also known as the voice box because it contains your body’s vocal chords. The epiglottis is a small flap of tissue that closes over the larynx when one is swallowing (deglutition).
The blood then goes into the right ventricle where it contracts the blood into the pulmonary arteries. These arteries lead to the lungs where blood is then oxygenated. The oxygenated blood then flows from the lungs to the left atrium through the pulmonary veins. Due to pressure the mitral valve, which leads to the left ventricle, opens up and pushes the blood into the left ventricle. The left ventricle then contracts and forces the blood through the aorta, which provides the rest of the body with blood.
It forms from the joining of the two common iliac veins about the level of the umbilicus on the right side of the fifth lumbar vertebra. On its way up to the heart, inferior vena caca collects blood from kidneys and all the organs of the abdomen, penetrates the diaphragm and drains into the right atrium (Yahoo Health, 2012). The inferior vena cava carries de-oxygenated blood from the lower part of the body to the right atrium of the heart. Blood from the right atrium then goes to the right ventricle via the tricuspid valve. From the right ventricle arises the pulmonary trunk which later divides in to the right and left pulmonary arteries.
Once we have investigated and documented the immune system at work we will take our leave by way of the alveolar membrane and out through the nose. We have been injection into the right femoral vein which is located in the thigh. Did you know that the word femoral means thigh? Tidbit for the brain. If you look out the submarine windows you can see that we are following the current of blood upwards toward the pelvic cavity.
During this stage the tongue blocks the opening to the mouth, the uvula blocks off the opening to the nasopharynx, the larynx rise and the epiglottis covers its opening into the respiratory tract, and the upper esophageal sphincter relaxes to allow the bolus to pass through. Peristaltic contractions propel the bolus through the pharynx and into the esophagus. As food reaches the end of the esophagus the lower esophageal sphincter relaxes due to reflex and then closes tightly once the food has entered the