The cardiovascular system consists of : heart (심장), and vessels (혈관), arteries (동맥), capillaries (모세혈관) and veins (정맥). A functional cardiovascular system is vital (필수적인) for supplying oxygen and nutrients to tissues and removing wastes from them. Paths of Circulation: Pulmonary(폐의) Circuit : carrying blood to the lungs and back 1. The pulmonary circuit is made up of vessels that convey blood from the right ventricle to the pulmonary arteries to the lungs, alveolar capillaries, and pulmonary veins leading from the lungs to the left atrium. 2. Carries the deoxygenated blood away from the heart to the lungs, and there by it brings the oxygen containing blood from lungs to the heart. Systemic Circuit : carrying blood from the heart to the rest of body 1. The systemic circuit includes the aorta (대동맥) and its branches leading to all body tissues as well as the system of veins returning blood to the right atrium. 2. Carries the oxygenated blood from the heart to the body, and also brings back the deoxygenated blood from the body to the heart. Structure of the Heart A. Size and Location of the Heart 1. The heart lies in the mediastinum under the sternum; its apex extends to the fifth intercostal space. 2. Approximately the size of the fist (주먹) 3. Location - Superior surface of diaphragm - Left of the midline - Anterior to the vertebral column, posterior to the sternum Coverings of the Heart 1. The pericardium(심장막) which encloses the heart. - Protects and anchors the heart - Prevents overfilling of the heart with blood - Allows for the heart to work in a relatively friction-free environment 2. It is made of two layers: I. The outer, tough connective tissue fibrous pericardium II. visceral pericardium (epicardium; 외심막) that surrounds the heart. 3. At the base of the heart, the visceral pericardium folds back to become the parietal pericardium that lines the fibrous pericardium. 4. Between the parietal and visceral pericardia is a potential space (pericardial cavity) filled…
2. Greg is taken to the hospital after being injured during the game. What problems do you think the physicians will find with Greg when they examine him, or do you think he is only suffering from dehydration?…
The myocardium, commonly referred to as the heart, acts as a pump for transporting blood around the body via a collective system, known as the cardiovascular system. This system has various components; blood vessels; mainly arteries, veins and capillaries. The cardiovascular system has four main functions within the body. Firstly to transport dissolved oxygen, hormones, nutrients, salts, enzymes and urea to cells located around various places within the body, whilst at the same time eliminating any waste products such as carbon dioxide and water. Secondly, to protect the body from infection and blood loss. Thirdly, to distribute heat around the body to enable a healthy temperature of 37oc and finally to aid the body to maintain fluid balance. This ‘human pump’ can be regarded as two pumps. The fist sized organ contains two muscular chambers; the upper chamber; the atrium and the lower; the ventricle. The right side of the heart pumps deoxygenated blood from the veins to the lungs for oxygenation, whilst the left side pumps oxygenated blood from the lungs to the body. It is important to note that the two sides are separated by a septum. The blood flows through the heart twice within one cycle, this is known as ‘double circulation’.…
The cardiovascular system has a role of circulating blood around the body. The contents of blood being circulated include nutrients, gases and waste products. The main organs involved within this process are blood, arteries, veins, heart and the lungs.…
The circulatory system is the body's transport system. It is made up of a group of organs that transport blood throughout the body. The heart pumps the blood and the arteries and veins transport it. Oxygen-rich blood leaves the left side of the heart and enters the biggest artery, called the aorta. The aorta branches into smaller arteries, which then branch into even smaller vessels that travel all over the body. When blood enters the smallest blood vessels, which are calledcapillaries, and are found in body tissue, it gives nutrients and oxygen to the cells and takes in carbon dioxide, water, and waste. The blood, which no longer contains oxygen and nutrients, then goes back to the heart through veins. Veins carry waste products away from cells and bring blood back to the heart , which pumps it to the lungs to pick up oxygen and eliminate waste carbon dioxide.…
Circulatory system is an organ system where nutrients pass through. Cardiovascular and lymphatic systems make up the complete circulatory system. Arteries, veins, and the heart are the main organs in the circulatory system. Examples of nutrients that are passed through are electrolytes, amino acids and lymph. Also other substances passed through the specific organ system are gases, hormones and blood cells to and from cells. The reason the substances are passed through the circulatory system is to fight diseases and stabilize body temperature and bodies pH, and also to maintain homeostasis.…
The circulatory system is made up of the heart, blood vessels and the blood. It has two circuits the pulmonary and systemic. The pulmonary circuit carries blood to the lungs that needs to be oxygenated and brings it back to the heart again. In the systemic circuit it carries the oxygenated blood around the body and the deoxygenated blood returns to the heart.…
When the blood circulates within our system, chemicals are exchanged by diffusion. Our cardiovascular system is made up of our heart, arteries and our veins. There is an important difference between the veins and the arteries. That difference is the flow or direction of the blood. Veins carry blood to the heart and arteries carry blood away from the heart. Most but not all arteries carry oxygenated blood. At some point during the circulation of the blood the pulmonary artery carries deoxygenated blood from the heart and to the lungs in which the blood is then…
The cardiovascular system is a closed organ system that is found within humans and other vertebrates. The heart consists of the right and left ventricle, right and left atrium, aorta, capillaries, pulmonary arteries and veins and the anterior and posterior vena cava. All of the following structures maintain the heart's beating cycle and the circulation of blood throughout the body.…
The blood vessels and the heart are part of the cardiovascular system. The respiratory organs that include trachea, bronchi, bronchioles and most importantly the alveoli. These organs are important because they make sure that in the body oxygen is delivered throughout. The trachea will help to move the oxygen and down to the alveoli. In the lung, the alveoli can be found as they are tiny air sacs.The alveoli can be greatly useful when oxygen move from the outside of the capillary into the blood vessels like the capillaries.When the oxygen have diffused into the blood vessel, red blood cells will carry the oxygen because of they have a pigment called hemoglobin that have an increased concave surface area to carry…
The Cardiovasuclar system is one of the most important systems in your body and it is also one of the largest systems in your body. This system consists of the heart, and a system of vessels called arteries, veins and capillaries. They are responsible for transporting, nutrients hormones, oxygen and waste throughout the body. All of these play an important part in this system and the system would fall apart if one wasn't there.…
Cardiovascular system consists of the heart which pumping and transporting blood to the body through blood vessels which is the other part of the cardiovascular system. The blood vessels consist of veins, capillaries, and arteries. Each one of the blood vessels has a specific function such as arteries which transfer the blood from the heart to the whole body, and veins which have the reverse process which carries the blood back to the heart. This is a simple definition of cardiovascular system. Then this essay will talk about the definition of the diseases that affect the cardiovascular system, the types of these diseases, and will describe a specific type in more details.…
These major structures collectively work together to help to carry out crucial nutrients all through the body as well as expel of metabolic waste. They additionally aid in securing the body and controlling body temperature. The cardiovascular system acts on the lymphatic system because the cardiovascular system distributes oxygen and nutrients to the lymphatic organs, which is where the immune cells are housed. The immune cells shield the cardiovascular organs from particular pathogens. The lymphatic system picks up the spill over of fluid and plasma proteins and brings them back to the cardiovascular system…
“The circulatory system is responsible for the delivery of blood, and therefore glucose in the blood, round the body” (Circulatory system and diabetes). The heart is the main organ in the circulatory system, it pumps deoxygenated blood to the lungs and oxygenated lungs to the rest of the body and organs. The hear contains two chambers, two atria and two ventricles. Oxygen-poor blood enters the heart through the vena cava and goes into the right atrium, the tricuspid valve opens to transport the blood into the right ventricle. The semilunar valves opens allowing for the blood to go into the pulmonary artery and transported to the lunges to become oxygenated. Oxygen-rich blood travels to the left atrium from the pulmonary veins, through the…
The cardiovascular system, also known as the circulatory, system has a mission to convey components, defend, and support. It contains the heart, the blood vessels, the blood, and the lungs. The main three functions are…