Blood vessel

The Cardiovascular System is composed of the heart and the blood vessels. The main function of the cardiovascular system is to pump blood around the body. The cardiovascular System is divided into two parts, the systematic circuit and the pulmonary circuit. The systematic circuit contains oxygenated blood and the pulmonary blood contains deoxygenated blood. In order to prevent oxygenated and deoxygenated blood from mixing there is a structure called an interventricular septum. The septum…

decline in coronary perfusion? a) Heart Rate b) Contractility c) High blood pressure d) Platelet aggregation and thrombosis Answer: D Answer Rationale: A. (Incorrect) Heart rate and coronary perfusion is not correlated. An increase or decrease in heart rate along does not necessarily impact the coronary perfusion. In most cases, it is the vasodilation and vasoconstriction in either health or platelet aggregated vessels that impact coronary perfusion. B. (Incorrect) Any change in the…

Fingernails are capable of showing sicknesses or diseases that are happening inside the human body. The plate of the nail is made of a protein named “keratin” which is transparent and flexible but durable enough to retain a shape and protect the nail bed. Underneath the nail plate is the nail bed which is composed of two parts, the dermis and the epidermis. The purpose of the nail bed is to house the nail matrix, which grows the nail and stabilize the nail’s foundation. The nail plate and nail…

cardiovascular system consists of the heart, blood vessels and approximately the 5 litres of the blood that the blood vessels transport. The cardiovascular system is powered by the body’s hardest working organ. The cardiovascular system is responsible for transporting nutrients and removing gaseous waste from your body. The main structures of this system is the heart the blood vessels and blood. Delivery of oxygen and nutrients The pulmonary circuit carries blood to the lungs to be oxygenated…

to take in oxygen, this can be done through the lungs, as it allows it to be absorbed into the blood, through the use of the alveolus found within the tissue of the lungs, in order to provide energy for the cells in the body to keep functioning as well as developing. How is the function of transport of materials achieved by these systems? I) Transport of substances at gross level (via big blood vessels) and exchange of substances at the capillary level…

happens when you have a stroke? First of all, what is a stroke? A stroke is when blood vessels to the brain are disrupted. It can either be a blockage which is made of fatty tissue which causes a blood clot (which 85% of strokes are) or a bleed in the vessel (15% of them are). The cut off blood flow causes damaged brain cells which can cause different symptoms depending which part of the brain is affected. The blood vessels clots or the tears can be located in the brain, neck, heart. If the…

In order to understand why CAD is such a fatal disease, one must understand the coronary circulation of the heart. Coronary circulation is essentially the circulation of blood in the vessels of the myocardium (Heart muscle) that ultimately deliver oxygen-rich blood to the heart. The two main blood vessels that are associated with coronary circulation are the right coronary artery and the left coronary artery. These two major arteries bifurcate off of the Aorta and encircle the heart ultimately…

are four major blood vessel s that supply blood to the brain, two carotid arteries and two vertebral arteries. These blood vessels join together to form the Circle of Willis at the base of the brain, smaller arteries leave the circle and branch out to supply brain cells with oxygen and nutrients. The artery junction points may become weak, as the artery wall becomes thinner from dilation, the blood flow causes the weakened wall to swell outward causing a ballooning of the blood vessel wall to…

are the different types of blood vessels? Which vessels carry blood towards the heart? Which carry blood away from the heart? Where does gas exchange occur? The functions of the cardiovascular system are: pumping blood to body tissues and organs; maintaining homeostasis; and transport gases, waste, and hormones. The different types of blood vessels are: arteries, capillaries, and veins. The vessels that carry blood towards the heart are veins and the vessels that carry blood away from the heart…

Congestive Heart Failure The heart is fundamentally a blood pump. It pumps blood from the right side of the heart to the lungs to pick up oxygen. The oxygenated blood returns to the left side of the heart. The left side of the heart then pumps blood into the circulatory system of blood vessels that carry blood throughout the body. Heart failure is an illness in which the pumping action of the heart becomes less and less powerful. When this happens, blood does not move efficiently through the…