Blood vessel Essays

types of blood vessels. The Structure and Functions of Blood Vessels ARTERIES The walls of arteries contain smooth muscle fibre that contract and relax under the instructions of the sympathetic nervous system. The functions of the arteries are: transport blood away from the heart and transport oxygenated blood only. Arteries have four different parts, which are; lumen, endothelium, smooth muscle and connective tissue. LUMEN=the lumen of arteries is relatively narrow to maintain high blood pressure

There are three major types of blood vessels: arteries, capillaries, and veins, and they all differ in their histological features. Arteries are the thickest blood vessels of the three. They have a tunica intima which has an internal elastic lamina and endothelium (simple squamous epithelium), a tunica media, an external elastic lamina, and a tunica externa or adventitia. Because arteries are built to withstand pressure and stretching, they could be elastic or muscular arteries. It depends on the

What You Should Know About Having Healthy Blood Vessels A complex group of blood vessels, arteries in particular, that supplies the brain with important nutrients and oxygen are known as vertebrobasilar arteries. They are responsible for providing blood, which carries oxygen to the brain structures—occipital lobs, brain stem, and cerebellum. The basic functions of these structures include coordination, consciousness, and vision. So basically, each part is important to achieve and maintain good

FOODS THAT AFFECT THE BLOOD VESSELS Blood vessels is important as it is a tissue connected to every organ of the body. There are some food that affects the blood vessels. Vegetables and fruit juices where the dietary rules to consume and potatoes in separate categories, as there are some foods which are high on fat that are guided to avoid or lower their consumption, such as, French fries. The fat products if it is consumed, then it will result to affect the blood vessels. The research had found

Cypress Oil- The eternal oil First let us begin with the basic meaning of cypress. What is cypress? Cypress is a tree found in the Coniferous and Deciduous regions. Though it is quite often linked with mortality, the use of the essential oil derived from this tree can cure many conditions. It is a tree which has been associated with aromatic, beneficial, and calming oil that it produces. It is extremely rich in essential oil with gives many benefits. A little about Cypress oil Cypress essential

Do you want to be put under the risk of the negative impacts your body can get from smoking or even secondhand smokinge? Smoking should not be allowed at parks and other public venues because it has health risks associated with it, it creates a dirty and unsafe environment and it is a bad influence. Smoking itself has many health risks, but for it to be allowed in public places imposes even bigger health risks to the public. The first reason smoking should not be allowed in public places such as

Course Project Stage 1: Cogitative Dissonance Theory According to Deetz (1994), Communication is viewed as a way to directly handle a message. Being able to communicate effectively is an essential part of our social, cultural and economic lives. To survive in this world today, the ability to communicate is vital. Today, we have more ways to communicate with audiences and less time to accomplish the task. Emotional advertisements that focus on social issues is crafted to deliver a message by grabbing

Low-density lipoproteins (LDL), known as bad cholesterol, are carrier vesicles that transport cholesterol in the bloodstream. Receptor-mediated endocytosis refers to system in which these LDL bind to receptors, which engulf the ligand into the cell (Alberts, et al., 2010). A protein-coding gene called proprotein convertase subtilisin/kexin type 9 (PCSK9) helps regulate the number of low-density lipoprotein receptors (LDLR) located on the plasma membrane of a cell (Duan, et al., 2012). This, in turn

Atherosclerosis can manifest to Cardiovascular Disorders (CVD) which are common in Western and urban populations. It is important to note that CVD is becoming one of the top causes of death globally. To understand the prevalence and incidence of atherosclerosis, we must take into account factors such as demographics as well as cultural and/or ethnic influences. Certain groups or societies are more prone to atherosclerosis. For instance, atherosclerosis is more prevalent within the Aboriginal populations

Recommended from the American College of Sport Science, adults need 150 minutes of exercise a week. We often eat too much for how little we move. If you are looking to lose weight you will need an average of 250 minute moderate-intensity, which only comes out to about 50 minutes a day for 5 days. Not bad, right? Now let's break it down. Lets look at your lifestyle. Do you work a desk job, or a job that is not physically demanding? If so, a sedentary person will only average 1,000-3,000 steps a day

Artificial dyes are found in a majority of processed foods in America. Most synthetic dyes are made of, or are based off of petroleum, a crude oil. Since these dyes are mainly petroleum based they have serious health risks on people, especially those diagnosed with ADHD, (Attention deficit/hyperactive disorder.) Because of these potential dangers, laws dating back to the 19th century have been passed, banning the addition of dyes and other harmful substances to foods. Through the years there have

3D Printing Blood Vessels The Science Connection Of My Article The article connects to the areas technology and life. This is because, the article is about how 3D printers and life science (anthropology and biology) are being used to help living, breathing creatures survive. The scientists involved in the article, technologists and a biomedical engineer (study of technology and humans). 3D printers have been around since 1983 and were invented by Charles ‘Chuck’ Hull [2] and can be found around the

system includes the heart, blood vessels and also blood. Its role is to deliver nutrients and takes away any by-products from a person’s body. The cardiovascular system is the heart and it is a four-chambered pump that carries blood to the arteries these arteries then carries out clean and oxygenated blood to the tissue. The blood Definition According to (dictionary.com 2002). Blood is the fluid that circulates in the vascular system of human beings and, in a humans blood is consisting of plasma in

important function in our body. It provides nutrients and oxygen to the tissues and cells and removes waste products produced by the cells. As the blood travels throughout the body, it picks up nutrients from the small intestine, oxygen from the lungs and hormones from the endocrine gland and delivers these materials to the cells. Once delivered, the blood picks up the waste products and carbon dioxide produced by the cells and transfers it back to the lungs. If this system stops functioning, the cells

The heart, blood, and blood vessels all form the circulatory system, also known as the cardiovascular system. As one of the most important systems in the human body, the circulatory system transports oxygen and nutrients to tissues and removes any waste products. Without the circulatory system, your organs wouldn 't be able to function, causing death. With the blood vessels taking blood around the body, the heart pumps all this blood. According to Ballard, "Inside the heart there are four spaces

breastbone. The heart’s main function is to keep blood continually circulating throughout the body. Arteries are the vessels that supply the body with oxygen rich blood; on the contrary the vessels that return blood to the heart are called veins. Like any other muscle in the body, the heart depends on a steady supply of oxygen rich blood. The arteries that carry this blood supply to the heart muscle are called coronary arteries. Sometimes these blood vessels can narrow or become block by deposits of fat

muscular organ in humans which pumps blood through the bold vessels of the circulatory system. Blood provides the body with oxygen and nutrients and also assists in the removal of waste. The heart is a pump that drives the whole circulatory system. It receives and propels blood, rhythmically contracting, forcing the blood through a system of vessels. The hearts action is controlled by the autonomic nervous system. STRUTURE OF THE VEINS, CAPILLARIES AND

is a double circulatory closed system which transports blood via arteries, veins and capillaries to the lungs through the pulmonary circulation and to the rest of the body tissues in the systemic circulation. Since the blood travels to varying distances around the body, the blood vessels have to be adapted to overcome different pressures. The pressure changes in the four chambers on the heart (two atria’s and two ventricles) allow the blood to continuously flow in one direction. This is also aided

The function of the pulmonary artery is to pump deoxygenated blood to the lungs from the heart to become oxygenated. The pressure inside the pulmonary artery is very low, although blood here is at a slightly higher pressure than the blood in the pulmonary vein, and this is reflected as the walls of the artery are significantly thinner than the walls of a corresponding artery, for example, the aorta. The walls of the pulmonary artery contain a large amount of elastic fibres in order to maintain the

capillaries. Referring to Louise Tucker 5th edition, the heart is an organ that pumps blood through the body via the circulatory system, supplying nutrients and oxygen to the tissues and removing carbon dioxide and other waste products. According to Louise Tucker arteries are thick walled, hollow tubes with a fibrous outer covering, a middle layer of muscle and elastic tissue. The functions of arteries are: • Carry oxygenated blood away from the heart to the rest of the body • Transport nutrients e.g. iron