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Anatomy and physiology of the circulatory system
Anatomy and physiology of the circulatory system
Biology 12 Circulatory System
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A DISCUSSION OF BLOOD CIRCULATION IN THE HUMAN BOBY
It is a well-known fact that blood circulation is one of the important things that keep a person alive. Blood is the red fluid that circulates in the blood vessels or is a specialized bodily fluid that supplies essential substances and nutrients, such as sugar, oxygen and hormones to the body cell and carries waste substance away from the body such as urine and carbon dioxide. Blood circulation works like that; the blood goes from the heart through the veins, capillaries arteries and then back to the heart again.
The circulatory system consists of the heart which pump the blood and the blood vessels through which the blood is circulated to the body and back to the heart. According to Fosbery and Adams (2009) explain that the heart contract and force blood into blood vessels, there is a certain path that the blood follows through the body. The blood moves through pulmonary
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The three main types of blood vessels; artery begin with the aorta, the large artery leaving the heart, they carry oxygen rich blood away from the heart to all of the body tissues. They branch several times becoming smaller and smaller as they carry blood further from the heart. Capillaries are small, thin blood vessels that connect the arteries and veins. Veins these are blood vessels that take oxygen poor in blood back to the heart. The veins become large and large as they get closer to the heart. The superior vena cava is the large vein that brings blood from the head and arms to the heart and the inferior vena cava brings blood from the abdomen and legs into the heart. James (1999) stated that this vast system of blood vessels; arteries, veins and capillaries is over 60000 miles long. That’s long enough to go around the world more than twice. Blood flows continuously through your body’s blood
Although we haven't covered these systems in detail yet, which of the following systems would involve gas exchange of CO2 and O2?
The circulatory system and respiratory system share a highly important relationship that is crucial to maintaining the life of an organism. In order for bodily processes to be performed, energy to be created, and homeostasis to be maintained, the exchange of oxygen from the external environment to the intracellular environment is performed by the relationship of these two systems. Starting at the heart, deoxygenated/carbon-dioxide (CO2)-rich blood is moved in through the superior and inferior vena cava into the right atrium, then into the right ventricle when the heart is relaxed. As the heart contracts, the deoxygenated blood is pumped through the pulmonary arteries to capillaries in the lungs. As the organism breathes and intakes oxygenated air, oxygen is exchanged with CO2 in the blood at the capillaries. As the organism breathes out, it expels the CO2 into the external environment. For the blood in the capillaries, it is then moved into pulmonary veins and make
Red blood cells deliver the oxygen to the muscles and organs of the body.
According to Virtual Medical Centre (2014) the primary function of the blood is to act as a transport, to give the body protection and to help regulate. The blood dissolves gases such as oxygen and carbon dioxide. The blood also transports vital nutrients throughout the body, such as micro-nutrients, fatty acids and amino acids. The flow of the blood helps to regulate the body’s temperature. Also the blood removes wastes material of metabolism. Blood cells (white and red cells) are carried through the body to help with the body’s natural defense, blood clotting and the carry anti-bodies.
The cardiovascular system - The cardiovascular system is responsible for transporting nutrients and removing gaseous waste from the body. It consists of the heart, which powers the whole process, the veins, arteries, and capillaries, which deliver oxygen to tissue at the cellular level. The cardiovascular system carries blood that is low in oxygen away from the heart to the lungs via arteries, where oxygen levels are restored through the air once oxygenated, this blood is then carried throughout the body via arteries, keeping our organs and tissue alive. The cardiovascular system is the workhorse of the body, continuously moving to push blood to the cells. If this important system ceases its work, the body dies.
The Structure and Functions of the Arteries Arteries are blood vessels that convey blood from the heart to the tissues of the body. The arteries expand and then constrict with each beat of the heart, a rhythmic movement that may be felt as the pulse. Arteries are usually named from the part of the body that they are found, for example; brachial artery found in the arms, metacarpal artery found in the wrist; or from the organ which they supply as the hepatic artery supplies the liver, pulmonary artery brings deoxygenated blood the lungs. The facial artery is the branch of the external carotid artery that passes up over the lower jaw and supplies the superficial portion of the face; the haemorrhoidal arteries are three vessels that supply the lower end of the rectum; the intercostal arteries are the arteries that supply the space between the ribs; the lingual artery is the branch of the external carotid artery that supplies the tongue. The structure of the artery enables it to perform its function more efficiently.
The Circulatory System is a transportation and cooling system for the body. The Red Blood Cells act like billions of little mail men carrying all kinds of things that are needed by the cells, also RBC's carry oxygen and nutrients to the cells. All cells in the body require oxygen to remain alive. Also there is another kind of cells called white blood cells moving in the system. Why blood cells protect from bacteria and other things that are harmful. The Circulatory system contains vein arteries, veins are used to carry blood to the heart and arteries to carry the blood away. The blood inside veins is where most of the oxygen and nutrients are and is called deoxygenated and the color of the blood is dark red. However, blood in the arteries are also full of oxygen but is a bright red. The main components of the circulatory system are the heart, blood, and blood vessels.
Blood is an important fluid in humans and other animals. It provides nourishment to all body organs, tissues and cells. The blood also carry away waste materials that are not needed in the body again. Blood in a human is about 5dm3 with a mass of about 5kg. The blood comprises of a few cells suspended in the blood plasma. The blood plasma is a pale yellow liquid which is mostly water with a variety of dissolved substances in it.
...In a drop of blood the size of a pine head there are about 5 million red blood cells, 10,000 white blood cells and 250,000 platelets. There are many organs that help with circulation. This is the process of how blood circulates through the body. 1. Blood enters the heart on the right side. 2. The right ventricle pumps blood to the lungs. 3. The lungs remove carbon dioxide from the blood. 4. The blood takes up oxygen and returns to the left side of the heart. 5. The left ventricle pumps the blood to the bod through the arteries. 6. The blood flows through the small intestine to pick up food water and medicine. 7. The blood flows through the live. This removes wastes and releases stored nutrients. 8. Capillaries deliver food, water, and medicine to the cells. They remove wastes and carbon dioxide. 9. The blood travels to the kidneys. These filter out more wastes and ex
The cardiovascular system is made up of the heart, blood vessels and the blood and its main functions include the transportation of blood around the body, protection from invading microorganisms and to prevent blood loss through haemostasis. (Widamaier, et al 2011:5)
Atherosclerosis is a disease that occurs when arteries become blocked, inflamed, or hardened. As a result of this, blood cannot easily pass through the artery, and blood pressure increases. Many people suffer from atherosclerosis as they age, but young people can be affected by atherosclerosis also. There are many preventative steps that can be taken to decrease the risk of atherosclerosis; however, if atherosclerosis does develop in the arteries, medications can be given to help the individual receive adequate blood flow to important tissues. Atherosclerosis is a very serious condition that requires medical attention and a change in life style because it is a precursor to many dangerous and potentially fatal diseases.
The heart, blood and blood vessels make up the cardiovascular system. The function of the cardiovascular system is to evenly distribute blood cells, water and nutrients. The cardiovascular system helps send blood to the body’s tissues. The heart is a muscle and the most important part of the cardiovascular system. Heart attacks, heart failure, and abnormal heart beat is a serious issue for the cardiovascular system these can sometimes lead to death. These diseases affect the heart and its functions (Heart and Cardiovascular disease 2005).
Lymphocytes travel through the body through blood vessels, or through lymphatic vessels that have a similar structure to veins. Cells and fluids can be exchanged between the blood and the lymphatic system to help the body find microbes. The lymphatic system transports lymph, which contains white blood cells,
Our blood is able to connect all our organs together to create one organism and is able to transport the most vital and important molecules through these blood streams. Hence, blood cells are needed for immune system function and metabolic functions.
The roles of the circulatory and respiratory system both carry important responsibilities and are essential in their jobs to the human body. The circulatory system is one, if not the, most important system in the human body. The circulatory system is made up of the heart, blood, and blood vessels. Within the blood vessels, there are three types: arteries, veins, and capillaries. The heart is an organ made up of cardiac muscle that has a role similar to a pump. When the muscles in the heart contract, it pumps fresh blood away from the heart, through a main artery called the aorta, and to the organs and cells of the body. Nutrients and oxygen then enter the cells through diffusion of the tissues. The respiratory system transports oxygen to the circulatory system. When transporting oxygen to the circulatory system, this will in turn transport oxygen to the rest of the cells in the body. Aside from transporting oxygen to the body, the respiratory system also plays a role in the removal of carbon dioxide and other contaminants in the body. These two systems effectively and efficiently work together in order to supply the body with oxygen and remove carbon dioxide and any other