Human heart

Coronary artery disease (CAD; also more simply referred to as coronary heart disease) is a specific type of atherosclerosis, which is in turn a form of arteriosclerosis (Dulson, Fraser, LeDrew, & Vavitas, 2011). All of these medical conditions entail the same problem, which hinders proper blood flow of oxygenated blood in the arteries: the sclerosis (that is, hardening) of arteries in the circulatory system (Sclerosis [medicine], 2016). Arteriosclerosis is a general term used to describe the…

This essay is going to be talking about what body systems are affected by the symptoms provided in the case study and how the patient’s health can be improved. It will also be looking at the structure and function of one of the body systems affected. The patient from the case study has a BMI of 18.5, which means that she is underweight. According to NHS choices (2014), the immune system does not function properly when a person is underweight making them more susceptible to contracting the flu…

of a realistic looking heart with chain links wrapped tightly around the heart is called “Heart Teapot: Petrol Hostage,” and it is one of many teapots in the Yixing Series by American ceramist, Richard Notkin, in 2013 (Pentilla, 2014). Notkin’s ceramic heart teapot is a relatively small teapot (6.5” x 11.25” x 5.75”) made from stoneware with a matte glaze that appears to have a rusted color that covers the entire teapot. The abstract teapot was designed to look like a heart with the heart’s…

cardiovascular system includes the heart. The evolution of the heart started from a two-chambered heart of a fish to a four-chambered heart in mammals (Harris-Haller, 229). The purpose of the experiment is to study the cardiopulmonary function of humans. Collecting data from a spirometry, electrocardiogram, blood pressure, pulse, and respiratory rate, the anatomy and physiology of the heart and lungs will be understood. The null hypothesis is the health of the lungs and heart can be determined…

In the United States about 610,000 people die of heart disease each year (Heart Disease Facts, 2015). Heart disease is caused by plaque build up in the arteries causing circulation of blood to slow or come to a complete stop (Heart Disease Facts, 2015). There are many factors that can put a person at risk of developing heart disease, the three most common factors being high blood pressure, high cholesterol and smoking. The Heart Disease Facts (2015) offered by the Center of Disease Control…

Introduction The human heart contains various parts. All the parts work together to perform different functions. Some of the functions include contraction, relaxation, receiving, distributing, opening and closing of valves. It is important for the various parts to work together for us to be able to breathe and perform our daily activities. Imagine when one part has a malfunction, how it could affect the others and the human body as a whole. In addition, science and medicine has worked so hard…

-Plasma -Platelets White blood cells (WBC Are also called leukocytes. They are the first line of defence when it comes to the human body fighting off infection. When something foreign enters the body the immune system snaps into response by sending white blood cells to fight off the infection. They either produce protective antibodies or they devour the bacteria. On average a human would have a White Blood Cell Count of 7,000 in each micro litre of blood. If a person has an infection this…

such as wolves, coyotes, foxes, California gray seals, sea lions and raccoons. On rare occasions, dog heartworms will infect human beings. The parasite, Dirofilaria immitis, is spread dog to dog by mosquitoes. When a mosquito obtains a blood meal from an infected dog and then goes on to bite the owner, it is common for some of the heartworm larva to be transferred to the human. Therefore, Heartworm Disease can be considered zoonotic (Diseases passed from animals to man). In a normal person, the…

The narrowing keeps the valve from operating properly by not allowing the valve to fully open. With the aortic valve not working correctly, it causes extra stress on the valve. Since the heart has extra stress on it, the blood flow is often reduced. The blood that cannot make it through the aorta causes the heart to work harder in order to supply the body with the correct amount of blood that the…

and modern significance. Galen’s theory explained that when food is processed within the liver it transforms into blood. This blood is then transferred to other organs to be utilised. Galen’s theory was influenced by the ancient Greeks’ knowledge of human blood in the body. Galen’s theory is classified as being incorrect however he discovered the difference between veins and arteries. The reason why Galen’s theory is incorrect is due to an English scientist by the name of William Harvey…