External carotid artery

Dry Eye Dry eyes, also called keratoconjunctivitis sicca, is dryness of the membranes surrounding the eye. It happens when there are not enough healthy, natural tears in the eyes. The eyes must remain moist at all times. A small amount of tears is constantly produced by the tear glands (lacrimal glands). These glands are located under the outside part of the upper eyelids. Dryness of the eyes can be a symptom of a variety of conditions, such as rheumatoid arthritis, lupus, or Sjogren syndrome…

Heart or cardiorespiratory monitor. This machine monitors a patient’s heart and breathing rates. Wires from the monitor are attached to adhesive patches on the skin of the patients’ chest, abdomen, and leg. Blood pressure monitor. Blood pressure is measured using a small cuff placed around the patients’ upper arm or leg The cuff takes the patient’s blood pressure at regular times and displays it on a screen. An auxiliary thermometer. This device is used to measure the patients’ temperature…

2016 Stages of Hypertension Hypertension, the condition in which the force of the blood against the artery walls is high, is a very common condition. Only 42% of Americans considered to have normal blood pressure readings. (1) Normal blood pressure reading should be less than 120 over 80. Blood pressure readings can be recorded by measuring the systolic pressure, the pressure inside the arteries when the heart beats, and the diastolic, the pressure between beats. Hypertension can be…

explore how your arteries work, who is at risk of developing high blood pressure, and the difference between essential and secondary hypertension. Your Arteries Blood moves through your arteries on its way to various parts of your body. Under normal circumstances, the pressure within your arteries is fine. However, there are times when the pressure builds and the blood pushes against the arterial walls. When that happens, especially over prolonged periods, the health of the artery can be…

ARACHNOID CYSTS DESCRIPTION Arachnoid cysts are cerebrospinal fluid covered by arachnoidal cells and collagen that may develop between the surface of the brain and the cranial base or on the arachnoid membrane, one of the three membranes that cover the brain and the spinal cord. CAUSES • The exact cause of arachnoid cysts is not known. Researchers believe that most cases of arachnoid cysts are developmental malformations that arise from the unexplained splitting or tearing of the arachnoid…

tone and sodium and water balance. The sympathetic nervous system and the renal renin-angiotensin system provide overall control, and cardiac output and peripheral vascular resistance are the primary regulating factors. Baroreceptors within the carotid sinus an the aortic arch along with with chemoreceptors in the medulla oblongata sense changes in the blood pressure and cause the vasomotor center to respond to those changes through the sympathetic and parasympathetic nervous systems. The…

1. The epidemiology and pathophysiology of coronary artery disease The term cardiovascular disease covers a heterogeneous group of clinical syndromes that affects the heart and the circulatory system. Coronary artery disease (or ischemic heart disease) accounts for the greatest portion of cardiovascular diseases, and alone caused 8.2 million deaths globally in 2013 [1, 2], therefore it is the major cause of death worldwide. It remains responsible for about 30-35% of all deaths in individuals…

this presentation, it is important for you to understand a few important terms. Plaque is a sticky material containing fat, cholesterol, and calcium An artery is a tube that carries blood from the heart to the entire body Atherosclerosis is a uncommon disease defined by a buildup of plaque within arteries that can eventually completely block an artery. The disease can become very serious. Atherosclerosis can lead to many…

Heart disease is the leading cause of mortality in the world with almost 25% of the deaths resulting from cardiovascular events or strokes. A particularly dangerous form of heart disease is mitral regurgitation (MR) which affects 200,000 people every year in the US alone. The Mitral valve is a key site of failure due to its location between the left atrium and left ventricle, it prevents the backflow of oxygenated blood into the atrium during ventricular systole and constantly experiences high…

Cardiovascular disease or CVD is a condition in which the blood vessels become blocked. In the United States, about 610,000 people die of heart disease every year from cardiovascular disease. It is the leading cause of death in both men and women. It is thought of as a “man’s disease” which it is not. The same amount of both men and women die from heart disease a year. There are four risk factors are the strongest predictors of heart failure: hypertension, chronic kidney disease, being…