There are three components which make up the Cardiovascular System. These are the heart, blood vessels and blood. The heart consists of four chambers: the right and left atrium and the right and left ventricle. The top chambers are connected to the bottom chambers by valves and are separated by the coronary sulcus. The left and right side of the heart are separated by the posterior interventricular sulcus.
This is very important as this allows osmosis occurs in our bodies. Plasma is forced out of the capillaries under high hydrostatic pressure to form tissue fluid. Some of the tissue fluid is return in capillary ends and some is returned to the blood by the lymphatic system. Plasma carries glucose, ions, waste product, respiratory gases and hormones around the body. Small molecules such as oxygen and carbon dioxide can diffuse in and out of the cells through the phospholipid bilayer; ions and glucose molecules enter and leave the cell via the channel proteins.
The myocardium is the middle layer and is the muscle tissue and majority of the heart. The myocardium is what causes the heart to contract. The heart consists of four heart chambers which receive the blood that circulates through our body. The two main chambers are the right atria and the left atria and the two other chambers are called the right ventricle and the left ventricle. The atria deliver blood the ventricles.
| | | 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.
Blood is taken to each of the four chambers of the heart by large blood vessels; vessels connecting the heart to the lungs are called pulmonary vessels. The aorta is connected to the left ventricle and carries oxygenated blood to all parts of the body (excluding the lungs, the vena cava is connected to the right atrium and brings deoxygenated blood back from the tissues of the body. The pulmonary artery is connected to the right ventricle and carries deoxygenated
The cystic artery’s function is to supply passage of oxygenated blood to the gallbladder neck and the common bile duct. 16. What is the function of the portal vein? The portal vein carries blood that contains digested food from the small intestine to the liver. 17.
When we inhale, the oxygen enters through our nose or mouth then it gathers it in the Pharynx (throat) then it is passed down in the trachea then it flows down your bronchioles and finally down the alveoli. Our alveoli are surrounded by many blood vessels called capillaries. Oxygen diffuses through the alveoli into the blood stream through the capillary and then up to the heart to be pumped around the body. Due to the thinness of the capillaries, this allows for a greater diffusion rate, due to the gases being able to diffuse quickly in short distances. Our diaphragm contracts (or tightens) when we inhale.
Each renal artery enters its respective kidney at the renal hilus and divides into interlobar arteries. These arteries divide into smaller arcuate arteries and interlobular arteries. The smallest branches of the interlobular arteries are the afferent arterioles which carry blood into the glomerulus a knot of capillaries at the core of each nephron. The afferent arterioles are also lined with juxtaglomerular cells which help to control blood pressure.Each glomerulus is surrounded by a cup-shaped structure call Bowman's capsule. The blood pressure in the glomerulus is high enough that about 10% of the blood fluid volume is squeezed out and absorbed by the Bowman's capsule.
Centrifugation Of Blood Blood banks are global wide industries that are involved in the separation of mixtures obtained from living matter. They take blood donation from humans and separate the white/red bloods cells platelets and plasma from each other for various beneficial uses, for example plasma or platelet transfusion. Centrifuging is used to hasten the separation of blood. Centrifugation is a separation process which uses the action of centrifugal force to promote accelerated settling of particles in a solid-liquid mixture. There are different types of centrifugal separation.