Pressure vessel

increases pressure to the brain and killing brain cells. II. Etiology The most common causes of a sub arachnoid hemorrhage is a blow to the head or trauma. i) Trauma is usually seen in the older people that have fallen. Young people who have been in a motor vehicle accident may also experience SAH. ii) Spontaneous hemorrhage can also occur. Non traumatic hemorrhage can be caused by a ruptured cerebral aneurysm or arteriovenous malformation. Arteriovenous malformation is a tenement of the vessels which

risk factors, but differ in symptoms and treatments. Although the causes of each type of the Macular Degeneration are different, the risk factors are essentially the same. The wet form of the disease is caused by small blood vessels that grow beneath the retina. The blood vessels leak blood and

“Vasodilatation reduces cardiac preload and afterload and decreases the myocardial oxygen requirements needed for circulation. Vasodilatation of the coronary arteries improves blood flow through the partially obstructed vessels as well as through collateral vessels” (Bolooki and Askari, 2014). Nitrates, such as nitroglycerin reverse the vasoconstriction associated with thrombosis and coronary occlusion. Morphine is the analgesic opioid of choice for ischemic cardiac pain. Morphine has been

types: elastic arteries, muscular arteries, arterioles, capillaries, venules and veins. I intend to explore the structure and function of arteries, veins and capillaries. When an artery branches into smaller and smaller vessels, eventually the blood vessel is too small to see with the naked eye. At that point, it is called an arteriole. Likewise, a venule is a microscopic vein. Arteries All arteries are comprised of three different layers but the proportion and structure

Poiseuille’s law states the volume in a tube is directly proportional to pressure difference between both ends of the tube and inversely related to the length. Poiseuille’s law was discovered by Jean Louis Marie Poiseuille in 1840 (Poiseuille’s). Jean Louis used his experiments to find the smooth, laminar flow in circular tubing (Jean-Louis). His findings can be described as the flow of blood through the body and bronchial smooth muscle. When the resistance of a fluid increases, the flow will decrease

Cerebral Vascular Accident (CVA) Cerebral vascular accident or stroke is a serious condition in which the blood supply in the brain is reduced or unable to give the brain tissues the proper oxygen and nutrients it needs to properly function, killing brain cells immediately if not treated and diagnosed in a timely manner. History Stroke was first recognized over 2,400 years ago by Hippocrates, known as the “Father of Medicine.” At the time, it was called apoplexy meaning “struck down by violence”

case is really bad a heart transplant would be needed. The World heart federation states that there are over 970 million people worldwide who suffer from high blood pressure which is also known as hypertension. You are considered to have hypertension if your systolic blood pressure is at or above 140 mmHg and your diastolic blood pressure is at or above 90 mmHg. Hypertension plays a huge role on your heart in a negative way. When you have hypertension it can

affects retinal vessels. Diseases like diabetes show abnormalities and diameter changes in retinal blood vessels. In hypertension retinal blood vessels show dilatation and elongation of main arteries and veins. Arteriolar to venular diameter ratio (AVR) express high blood pressure levels, diabetic retinopathy and retinopathy of prematurity. Among other image processing operations the estimation of AVR requires vessel segmentation, accurate vessel width measurement

in the tissue fluid obtained from the similar composition of the plasma of blood. The tissue fluid is obtained through the actions of different forces. The hydrostatic pressure forces the blood vessels and capillaries into the tissue fluid, which increases the blood pressure with every beat and pump of the heart. This sort of pressure forces the water from the capillaries through the membranes being partially permeable that aligns them. These forms of cells are involved in the facilitation of diffusion

sources: Laughter good for heart Laughter is the Best Medicine UNIVERSITY OF MARYLAND SCHOOL OF MEDICINE STUDY SHOWS LAUGHTER HELPS BLOOD VESSELS FUNCTION BETTER Laughter relaxes our muscles 1. A good, hearty laugh relieves physical tension and stress, leaving your muscles relaxed for up to 45 minutes after.