Muscle Vs Skeletal Muscle

The hearts function as a double pump that serves two circulations. The pulmonary pump in the right side of heart is provided for the gas exchange in the body, and the systemic circulation in the left side provides the functional blood supply to all body tissues. The functional blood to the heart is provided by the coronary arteries. Right coronary artery supplies the heart through the posterior interventricular and marginal artery branches; and the left coronary artery supplies the heart via anterior interventricular artery and the circumflex artery. The myocardium is drained by great, small, and middle cardiac veins which

The blood circulates around the body. The heart contract and relax, this mechanism of heart makes the blood to flow in the arteries to the body from heart and come back from body to heart through veins. The arteries carry oxygenated blood or oxygen rich blood and the veins carry deoxygenated blood or oxygen poor blood. This flow creates the pressure on the arterial wall and the pressure that is exerted on the arterial wall is known as blood pressure. Blood pressure is expressed by the

Oxygen poor blood fills the right atrium from either the superior or inferior vena cava.

Meaning The Sa node and Av node work together, forcing blood into the ventricles, which contract, forcing the blood to leave from the left side of the heart. The blood that enters the right side of the heart enters through veins as it is under less pressure. Blood with co2 in it will exit the right side of the heart through the pulmonary artery to the lungs where gaseous exchange occurs.

The heart pumps blood vigorously through the vessels to all parts of the body, nourishing the organs

Every beat you feel you heart make is one complete cycle of blood entering the heart and exiting the heart. The heart cycle breaks down into two main contractions. Atrial contraction of the heart forces blood from the vena cava and the pulmonary veins through the atrioventricular valves and into the left and right ventricles. During ventricular contraction the tricuspid and mitral valves close and the blood is forced out of the ventricles through the semilunar valves into the aortic and pulmonic arteries. The pulmonic arteries supply blood to the lungs for oxygenation while the aortic arteries circulate the already oxygenated blood from the lungs, to the rest of the body. Diastole is the period of relaxation when the blood fills the ventricles. Systole is the period of contraction that forces the blood out of the ventricles.

The heart is located beneath the rib cage, between the lungs, to the left of the sternum (breastbone). Most people believe that the heart is located on the left side of the chest because the bottom of the heart is tipped to the left. Therefore, you feel more of your heart on the left side. The heart is a powerhouse with muscular walls that contract, thrusting blood throughout the body’s blood vessels. The blood must flow in one direction in order for the heart to function properly. The three focal types of vessels are arteries, capillaries, and veins which form the circulatory system. These vessels, like elastic tubes, transport blood to every portion of the body. Arteries carry oxygen-rich blood away from the heart to all of the body’s tissues. They progressively become smaller as blood is carried further away from the heart. The capillaries are the small, thin blood vessels that connect the arteries to the veins. Nutrients, carbon dioxide and waste products are allowed to pass to and from the tissue cells by their thin walls. Veins, on the other hand, carry the oxygen-poor blood back to the heart. These vessels gradually become larger as they get near to the heart. The blood vessel system runs over 60,000 miles long.

skeletal muscles contract and help compress the veins providing resistance to pooling of blood. These muscle twitches

Cardiac muscle- Found in the wall of the heart in the myocardium. The cardiac muscle’s contractions help force blood through the blood vessels such as the aorta to the whole. This therefore delivers oxygen and nutrients to the body while removing other waste products, e.g. lactic acid. This muscle is responsible for pumping blood through the heart chambers and into the blood vessels the heart beats non-stop about 100,000 times each day, it can do this because of the cardiac muscle. It does this by contracting when it is relaxed it fills your heart with blood. Unlike other muscles the cardiac muscles never gets tired, it works constantly without pausing to rest. It consists of specialised fibres which do not tire. The cardiac muscle is also

The first stage of pumping blood throughout the body, is by pumping blood through the four main chambers of the heart, which are “The right and left atrium, and the right and left Ventricle”. The great vessels in the heart include the Superior and Inferior Vena Cava, which brings blood from the body to the right Atrium, then the Pulmonary artery transports blood from the right ventricle to the lungs, therefore, the Aorta “the body’s largest artery” transports oxygen rich blood in one

The heart is not only responsible for pumping blood through the entire body, but it also requires its own blood supply in order to perform its function. This is known as coronary circulation. The cardiovascular system has two circulatory paths; pulmonary circulation, the circuit through the lungs where blood is oxygenated and systemic circulation, the circuit through the rest of the body to provide oxygenated blood. Pulmonary circulation is the movement of blood from the heart to the lungs for oxygenation, then back to the heart again. Oxygen leaves the systemic circulation when it is entered in the right atrium through the vena cavae. Then it travels through the tricuspid valve into the right ventricle. The blood is pumped through the pulmonary

The skeletal muscle pump is a number of skeletal muscles which help the heart by circulating blood. The skeletal muscle pump plays an important role in the increase of venous returning back to the heart. It starts to work when contractions apply pressure against the vein. The valves that is proximal to the region where the contractions have occurred are pushed open which allows the blood to drive back into the heart. The other valves which is located near the distal region of contraction are sealed by the blood that is back flowing. The vessels that it operates on are called the arterioles, their function is to regulate the blood flow into different tissues. These vessels then branch into the capillaries which is the tinniest blood vessels in the human body. It is different because each time that the heart pumps it pushes the blood

Receiving the oxygenated blood from the left atrium during ventricle diastole and atrium systole and pushing it to the rest of the body through the aorta when the ventricle contracts.

On to the right ventricle. When this contracts back pressure from the blood forces the valves to shut. When the contraction of papillary muscles holds the cords in place to stop back flow of blood in to the atria.

Heart- The heart is a muscular organ. It has veins which brings blood to the heart and arteries which bring blood away from the heart.