Mammalian Heart Dissection Lab Report

The purpose of the Sheep Heart Dissection lab was to take a look at the heart's anatomy and all the parts that it consists of. This lab helped us learn how the heart is able to function, and gave us a hands on look at what a real heart looks and feels like. I worked on this lab with Jose, and Alex. We completed the procedure in one day of class, and had the questions completed by the second.

Purpose The purpose of the lab is to dissect a pig heart in order to identify all of the parts of main chambers, valves, and vessels. To able to know the circulation the blood through the heart to the lungs and identify each section of the pig heart. The pig heart has four chambers which it is two atria and two ventricles. They both pump the blood and give the body what it needs.

Inside, the heart is divided into four chambers. The four chambers are right atrium, right ventricle, left atrium, and left ventricle. The left and right sides are divided by a thick membrane called the interventricular septum. Each atrium is where blood will flow back into the heart, and each ventricle is where blood is pumped out.

The Pintails heart is like a mammals consisting of four chambers, two ventricles and two atria. The left ventricle pumps blood to all major organs in the body and throughout the rest, only excluding the lungs. This causes the left ventricle to be larger and more muscular. The lungs are fed blood from the right ventricle, which is the only the only function of that ventricle. The oxygenated blood coming from the lungs is fully separated from the oxygenated blood coming from other parts of the body.

It is now an undoubted fact that the huge amount of anatomic and physiologic information released from cardiac catheterization studies gave a chance to understand the mechanisms of cardiac conditions dissimilarity. The first cardiac catheterization procedure of an animate heart perhaps was in 1711 when Stephen Hales inserted brass tubes through the jugular vein and the carotid artery into the ventricles of a horse. Over a century later, in 1844, Claude Bernard initiated a series of tests using cardiac catheterization in animals (Grossman, 2006), and became the first one who precisely report intra cardiac pressures by performing right heart catheterization (RHC) in a dog .The X-rays developed to produce fluoroscopic images of the beating heart in 1896, The first cardiac catheterization in a living human was performed by Werner Forssmann in 1929. and reported that the (RHC) through the venous system would provide safe and rapid access to the heart, but his ideas were widely discredited, as it was a general belief at that time that any heart invasion might be immediately fatal.

The left ventricle is the primary pumping chamber, and heart failure normally begins on the left side. At the point when the left ventricle can't contract enough, it is called systolic heart failure. At the point when the left ventricle can't load with enough blood, it is called diastolic heart failure. You can have a blend of both sorts of heart

Harvey William Harvey’s seminal work “On the Motion on the Heart and Blood in Animals” initiated modern medicine. Harvey’s arguments were detailed readily verifiable and though they did endure a fair bit of criticism when released, in most areas, they were accepted within his lifetime. Once his simple notion of the circulation of blood was carefully described others were able to see and understand its validity themselves. I will argue that William Harvey’s theory which used inductive reasoning to show, with experiments, how blood flowed from veins to arteries through the heart and deduced the existence of capillaries to return blood from arteries to veins. One of the main understandings of the day, proposed by Galen of Pergamon nearly 1500 years earlier, was that blood was a resource that was produced in the liver and consumed in the tissues and the brain.

Generate: Heart auscultation is useful in characterizing heart sounds and identifying abnormalities that may suggest cardiac dysfunction.1 The fourth heart sound (S4 atrial gallop), heard during the patient’s physical examination, is often an abnormal finding due to reduction in ventricular wall compliance.1,2 Additionally, S4 occurs due to rapid deceleration of active blood flow due to a nondistensible ventricle.2 S4 can be heard in patients with hypertension, hypertrophic cardiomyopathy and acute myocardial infarction (AMI).1,2

A bundle branch block anatomy involves the heart, but specifically the electrical nodes of the heart and the chambers of the heart. The electrical nodes of the body act as a pacemaker to help the heart correctly beat. The sinoatrial node (SA node) will send impulses to help the heart to contract. This impulse is sent to the upper chamber of the heart and then passes through the atrioventricular node (AV node). This impulse is sent through a pathway

According to Stein, the structural features of Daphnia heart is similar in many ways to the cardiac hearts of the vertebrates. Therefore, studying

2. Review the electrophysiology of the heart as it relates to the ECG. 3. Discuss the indications for recording 12-lead ECG. 4.

Heart, lungs and the Rest of You By: Olivia Abel 1.Explain how the blood flows throughout your lungs, heart and the rest of your body.   Heart: Your left and right side of your heart work together to pump blood to and throughout your body which is separated by muscular tissue called the septum. In the right side blood enters through two large vein which are the inferior and superior vena cava, emptying poor oxygen blood from the body to the right reticulum. When the left side enters from the pulmonary veins and empties oxygen rich blood from the lungs into the aorta going throughout the body.

The American Society of Echocardiography (ASE) established

The TEM showed the cardiac muscle structure in the untouched hearts in a Z-shape (a, b), while the regenerating heart cell arrangement began disconnecting and created lots of space between the cells (c, d). The myosin seen in the normal heart turns out to be disorganized (f), and after 7 days the space was once again present (e, f). Around the 7th day, the distortion of the cell structure increased, resembling those with BrdU. However, TUNEL proved that the cardiomyocytes appeared normal and showed no signs of apoptosis. Cells with the PH3 marker showed no signs of noticeable sarcomeric organization, while PCNA-positive cells showed the

The heart of the pig two larger tubes, and four smaller tubes. The heart was black near the back of it because of the blood build up. The heart was about the size of the pig’s foot and was smooth and squishy. The hearts over all color was pinkish red. It was surrounded by lots of blood vessels and tissue.