Vessel

Hemoglobin is an iron-containing protein that is the chief means of oxygen transport. If the red blood cells does not get oxygen it will change shape. If you have the sickle cell disease your cells split at high altitudes and they get stuck is small blood vessels. If you have too many red blood cells it reduces fatigue by increasing the supply of oxygen to the exercising muscles. These are all malfunctions that can happen to the red blood

oxygen and eliminates carbon dioxide within lungs, and systemic circulation delivers blood to all other parts of the body. All systemic circulation begins via aorta, the first blood vessel of the systemic circulation and the largest artery of the body. All arteries are exposed to high blood pressure or stress to vessels, and the aorta, being the initial point for entire circulatory pressure gradient, has the highest intravascular pressure. Therefore, the aortic wall is designed to resist high stress

Introduction An aneurysm is a weakening or dilation of the blood vessel wall. If the aneurysm burst it is considered a subarachnoid hemorrhage. Aneurysms occur most commonly along the aorta or in the brain. For the purpose of this paper, brain aneurysms will be the main focus. Aneurysms are life threatening, especially in the case of a rupture. Therefore it is important that healthcare workers have an understanding of the pathophysiology, clinical manifestations, diagnostic test, and the therapeutic

Project Background (500 words) The placenta is a fetal organ that is vital for the growth of the fetus during pregnancy. Abnormalities in placental development can result in pregnancy complications such as intrauterine growth restriction (IUGR) and pre-eclampsia (PE), which affect one in ten pregnancies in New Zealand. IUGR occurs in 3-5% of all pregnancies, and is associated with an assortment of increased risks of its own, such as hypoglycaemia, hypothermia, developmental delays and increased

The circulatory system consists of blood contained in a network of vessels called the vascular system. The above figure is a schematic of the human circulatory system, the heart pumps oxygenated blood from the left side to different parts of the body and returns back to the right side of the heart making a closed loop, this loop is called the systemic circuit. The blood from the heart is pumped into large muscular arteries from which it moves into smaller arteries and finally into the areole from

first let's introduce you to heart disease and what it is and how it can affect you. Heart Disease refers to when people coronary disease and it one type of cardiovascular disease. It refers to a disease/disorder that affects the narrowing of blood vessels that are in close proximity or in the heart. Other forms of heart disease include a break in rhythm of the heart or weakened heart muscles so the heart cannot perform its function.

Blood is a fluid connective tissue which is pumped through the closed vessels of the circulatory system. It transports materials around the body and is a defence against disease. Blood has four parts: Plasma Red blood cells White blood cells Platelets The composition of blood consists of the blood having : 55% plasma 45%

Unit 11 Assignment 2: Cardiovascular and Respiratory Systems M2. Explain the need for a transport system in a multi-cellular organism There are two types of cellular organisms: • Unicellular organism • Multi-cellular organism Unicellular Organism A unicellular organism is a single celled organism (one cell), which is to rely on the process of diffusion, when moving different substances in and out of other cells, due to its structure it has a larger surface area in comparison to its volume; this

ballooning of a blood vessel, or even an embolism (when any foreign body enters the blood stream). Blood vessels include arteries, capillaries and veins and therefore these events can occur anywhere in the body (i.e. the heart or the brain). There are different types of aneurysms including saccular, fusiform and pseudo-aneurysms. Saccular aneurysms only develop on part of the vessel wall and are spherical in shape. Fusiform aneurysms are ovoid in shape and develop over the entire vessel cross section.

surface area so efficient gas exchange. Mammal -Sheep Comparisons: a tracheal system in mammals would be too heavy as lungs would require large amounts of water to extract sufficient oxygen, both fish and worms have high vascularised blood vessels. Mammals, worms and fish breathe oxygen but in different ways e.g. skin, gills and lung. Fish, sheep and worms have large surface are to volume ratio to get efficient gas exchange. They all have different habits which make them favourable in their