the outer layer called the pericardium, the middle layer called the myocardium and the innermost layer of tissue named the endocardium (Farley et al., 2012). External Anatomy of the Heart Pericardium The pericardium is a sac that surrounds and protects the heart. It is doubled layered with an outer layer composed of fibrous connective tissue and an inner layer composed of simple squamous epithelium (Farley, McLafferty & Hendry, 2012). The fibrous portion of the pericardium ensures that the heart is
Daniel Hale Williams was the first physicians to perform open-heart surgery in the United States, executed the second documented successful pericardium surgery to repair a wound, and founded the first ever non-segregated hospital in the United States called Provident Hospital. Daniel Hale Williams III was born on the exact date of January 18, 1856, in Hollidaysburg, Pennsylvania, to Sarah Price Williams and Daniel Hale Williams II. Dr. Daniel Hale Williams III was the fifth child in a family of seven
Diseases. The heart has three layers of a muscular wall. A thin layer of tissue, the pericardium covers the outside, and another layer, the endocardium, lines the inside. The myocardium is the middle layer and is the biggest of all. Myocardial Infarction is a disease later read about in this report. The pericardium is a fibrous sac which is very smooth lining. In the space space between the pericardium and epicardium is a small amount of fluid. This fluid makes the movement of the heart muscles
Abstract:Dorland's Illustrated Medical Dictionary defines the heart as "the viscus of cardiac muscle that maintains the circulation of the blood". It is divided into four cavities; two atria and two ventricles. The left atrium receives oxygenated blood from the lungs. From there the blood passes to the left ventricle, which forces it via the aorta, through the arteries to supply the tissues of the body. The right atrium receives the blood after it has passed through the tissues and has given up much
These layers assist the blood through the heart to the body. The endocardium lines the valves and chambers. The myocardium is the muscle that causes contractions and creating actual blood pressure. The pericardium prevents expansion and protects the heart muscle. The valves are tricuspid, pulmonary, mitral and aortic. These valves allow the blood to flow through the heart to the body and prevent backflow into the heart. These valves keep the continuum of
The weight is less than a pound, the heart is snugly enclosed within the Infer mediastinum, and the medial section of the thoracic cavity, the heart is flanked on each side by the lungs (Marieb, 2014). Pericardium surrounds the heart, the fibrous pericardium the superficial part of the pericardium aids in protection of the heart from moving freely around the thoracic cavity. Deep to the fibrous cavity is the serous Fasting morning bloods for accurate readings of blood glucose and full blood counts
which leads to abnormal heart rhythms. This is also a cause for the damage to the visceral and the parietal pericardium. The heart attack weakens the contractile mechanism causing a damage to the myocardium which is responsible for the pumping of the heart which further results in shortness of breath. (Fishbein) Myocardial infarct causes structural damage to the visceral and the parietal pericardium as the smooth lubricated surfaces are no more so the friction free movement of the heart is weakened or
Process of the Human Heart The human heart has four chambers, the right atrium, left atrium, left ventricle, and right ventricle. The human heart has a ton of amazing features. The normal heart rate for adults is 120/80. The human heart weighs twelve ounces and beats at seventy-two beats per minute it is the size of a human fist. Its blood flow has many functions and is extremely vital to our bodies. We would not be able to survive without our heart. I will talk about the functions of our heart and
. The layers of the heart wall include epicardium, myocardium, and endocardium. Epicardium is the surface of the wall and it’s also called visceral pericardium. It contains serous membrane covering the heart. Myocardium is in the middle of the two layers it’s described as having a thick muscular layer of the heart. It serves as having contractions of the heart as well in containing fibrous skeleton in networking of collagenous and elastic fibers. Some of the functions are providing structural support
Billy Shuibi Bio 100 Strauss 11 May 2016 Heart The heart is one of the most unique organs in the human body. Its capabilities and functions truly are amazing. The heart 's function is to pump blood throughout the body supplying oxygen and nutrients to tissues. The heart is the size of your fist and weighs roughly 8-12 ounces depending if you’re male or female. The heart pumps through 100 kilometers of blood vessels for blood that is 3 to 4 times thicker than water at 60 to 80 times minute
Cross-linking agents As shown in Table 1, cross-linking can be classified into three types; chemical, biological and physical cross-linking [9, 15]. Chemical Cross-linking There are two types of chemical cross-linkers; synthetic and naturally derived reagents. The most commonly employed cross-linking reagent for collagen-based biomaterials is glutaraldehyde (GA), a five carbon bifunctional aldehyde, bridging ɛ-amino group of lysyl residues present in the protein over a varying range of distances
1 Describe the formation of intra -embryonic coelomic cavities?? Intra embryonic coelom or another name body cavity , differentiation of the mesoderm In such a way to form the intra embryonic mesoderm which will have 3 mesoderm masses which are paraxial which will differentiate to somites later and intermediate mesoderm and lateral mesoderm which is very important site because intra embryonic mesoderm of lateral mesoderm will be continuous with the extra embryonic mesoderm . So basically Intra
Sheep Heart Dissection Aim: To investigate the heart of a sheep i.e. to investigate the internal and external structure of the heart. Hypothesis: The heart of the sheep and of a human will be the same except for the size i.e. the sheep heart will be bigger. Background information: The central organ of the Cardiovascular System is the Heart, the muscular organ pumps blood through an intricate network of Blood Vessels to all parts of the body. The Heart Beats more than 2.5 billion times
Lung cancer: The beginning, progression, and how it exerts its lethal effects Lung cancer is the second most common cancer in both men and women, but is the leading cause of cancer death in the United States. All cells in the body contain the genetic material called deoxyribonucleic acid (DNA). Every time a mature cell divides into two new cells, its DNA is exactly duplicated. The cells are copies of the original cell, identical in every way. In this way our bodies continually replenish themselves
Twenty years of research has firmly established that periodontal disease and cardiovascular disease are associated. However the exact relationship between the two is still controversial. In order to understand the relationship between periodontal disease and cardiovascular disease people need to understand the physiology, and microbiology behind both of the diseases. Dental professionals should promote a message that a strong biologic connection exists between oral and systemic health. Therefore
Regardless of race, gender, or religion, victory in the face of adversity can be used as a source of inspiration. While some try to emulate the success of others, some already have the internal drive to achieve more than what their current circumstances make feasible. The story of Dr. Daniel Hale Williams is one of a child raised amongst seven siblings designated as a shoemaker’s apprentice who dreamt of more. (Spark Media, 2003) Daniel Hale Williams III was the fifth born to a family of seven children
Ectopia Cordis, also known as exocardia and ectocardia, is a rare and severe congenital heart defect. There are four types of Ectopia Cordis disease: thoracic (60%), abdominal (10%) cervical (5%) and thoracoabdominal (20%). Thoracic and thoracoabdominal are the two most common forms of this disease. Thoracic Ectopia Cordis is a rare congenital heart abnormality with the heart partly or completely placed outside of the thoracic cavity. It is not protected by the sternum or skin and in some cases
he actually might be suffering from. First diagnoses is Acute Pericarditis which is a disease that must be considered in the differential diagnosis of my patient as he is complaining of chest pain. This disease results from inflammation of the pericardium which is a tough sac that covers the heart and the base of the vessels (Tingle, Molina & Calvert, 2007). Second diagnoses is Acute Myocardial Infarct (AMI) is the results from plaque rupture which then followed by the formation of large thrombus
The Great White Shark Beginning with the simplest one-celled organism, an extraordinary animal rose in the murky waters entitled to a non-comparable killing-eating machine. This organism has become nature’s most genuine and most successful creature that it has remained unchanged for over 250 million years. Nature finally invented the perfect king of the sea. This animal has given the sea it’s “living” adjective; in turn, it was entitled—the “great white shark.” The Great White Shark derived
Grey’s Anatomy Have you ever thought about how many people watch television every day? “Close to 20 million people tune in every week to the show Grey’s Anatomy” (askville.amazon.com). Some of the viewers watch the show every week and are dedicated fans. Others just watch when they can catch it, but even when they don’t watch it every time, it still has an effect. Viewers who are not regular watchers tend to look at more of the medical information. They stop on the channel because they like medical