The heart is an organ of muscles. It’s necessary to pump blood throughout the body. The heart has four chambers: two atria (left and right) and two ventricles (left and right). The two atria chambers are located at the top of the heart; whereas, the two ventricles are located at the bottom of the heart. The chambers help blood flow smoothly through the heart.
The cardiovascular system also known as the circulatory system consists of the heart and blood vessels. One of the most important jobs it has is to “circulate” blood. The heart works to pump the deoxygenated blood to the lungs for gas exchange while simultaneously pumping oxygenated blood to the body’s tissues. The blood vessels work to continuously bring the blood to all areas of the body which helps regulate body temperature. The flow of oxygenated blood to the tissues helps deliver nutrients such as amino acids and electrolytes, water and oxygen.
Veins transport blood to the heart and lungs at low pressure after receiving it from the capillaries. Valves inside the veins keep blood moving in one direction. The human body's arterial system branches out from one main artery, the dorsal aorta. Like veins, arteries have three layers: an outer layer of tissue, an inner layer of epithelial cells and a layer of muscle in between. Arteries deliver oxygenated blood to the capillaries, where the exchange of oxygen and carbon dioxide takes place.
The largest muscle in the heart that is located in the left ventricle, pumps the freshly oxygenated blood to all other organs and body parts. Then blood is circulated and exhausted, veins carry it back toward the heart and the right atrium to begin the process again. A human 's heart has two atria and two ventricles. The atria distributes oxygenated blood. The right atrium takes in oxygen and poor blood from the body and pumps it to the right ventricle.
Perfusionists employ artificial blood pumps to propel open-heart surgery patients' blood through their body tissue, replacing the function of the heart while the cardiac surgeon operates. When a patient's blood is continuously removed and returned through plastic tubing to allow
The oxygen in the lungs spreads out into the blood and carbon dioxide in the blood spreads out into the lungs. Internal respiration is the gasesous exchange in the body tissues. in contrast to these physiological processes, ventilation or breathing is a mechanical process that takes in and takes out air in to the and out pf the lungs. It consists of 2 steps: inspiration and expiration. In human body respiratory system takes place at the same time but it’s practical to think as it includes number of steps.
From the synaptic cleft, the ACh binds to the receptors located on the muscle fiber’s plasma membrane. After the ACh has found its way to the receptors and is bound to them, the muscle fibers become stimulated. The stimulated muscle fibers result in an impulse being generated. This impulse travels down the membrane until it reaches the Sarcoplasmic Reticulum. The Sarcoplasmic Reticulum is responsible for regulating the Ca2+ ion concentration.
The adrenal medulla, which is in the autonomic nervous system, will then secrete, once action potential is reached, epinephrine (Adrenaline) into the blood. Epinephrine brings its effects to target receptors, which will in turn cause changes in the body. Adrenaline leads the Sympathetic Nervous System to become more prominent and inhibit the action of the Parasympathetic system in the body. Thus, the body focuses less on housekeeping and more on fighting or fleeing. It increases the amount of oxygen the lungs intake and the level of blood glucose.
The circulatory is a system which works along with the cardiovascular system. The main function of the system is the transportation of oxygen throughout the body and the removal of carbon dioxide. In the cardiovascular system the linkage of organs includes the heart, blood vessels and blood. Heart failure is a disease that could develop within the circulatory system. There are numerous ways one can contract this disease which includes, unhealthy eating habits, smoking, excessive amount of sugar within the blood or inflammation of the blood vessel.