2. Explain the functions of the respiratory system. Cite the definitions and the differences between external and internal respiration. The respiratory system is responsible for bow we intake air into our bodies and out. It also helps provide oxygen to the body. External respirations is when you breathe in through your lungs and carbon dioxide exhaled out. Internal respirations is what you inhales goes from the lungs back to the heart.
Veins transport blood to the heart and lungs at low pressure after receiving it from the capillaries. Valves inside the veins keep blood moving in one direction.
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
where the slow building up allows the heart to adapt. Some common causes of acute
We participated in this lab by carefully following a procedure. The first procedure was to locate and identify different veins and arteries stemming off the heart. We labeled the pictures in the packet according to what we saw. We were then instructed to make an incision along the length of the heart. We continued to open the heart up and inspect the inside. We were able to see all the valves and chambers inside the heart. We used a probe to check out the different valves inside to see the vein or artery they belonged to.
The data have supported the hypothesis because it showed that vessels is connect to the heart. The right atrium and left atrium are part of the chambers in the heart. Right atrium received deoxygenated blood and pumps it into right ventricle that send to the lung so it can oxygenated. But, left atrium pumping oxygenated blood to the tissues of the body. Right and left ventricles are part of the chambers. Right ventricle pumping the deoxygenated blood through the pulmonary valve and artery to the lungs. But left ventricle pumping oxygenated blood through the aorta and valve into the circulation. The aorta is main artery of the body and it is top of heart which carries the blood away from the body. The coronary artery supply oxygen-rich blood to the heart muscles. Pulmonary veins are large vessels that carrying oxygenated blood from the lungs to the left atrium which it is draining. Pulmonary trunk is a vessel that appear from the right ventricle and proceed deoxygenated blood from the heart to the lungs. Pulmonary arteries is from right ventricles of the heart to carry blood to the lungs for oxygenation. Semilunar valve of pulmonary artery located between the right ventricle and the pulmonary artery do it can pump the blood into the arteries, but will prevent blood that go opposite. Semilunar valve of aorta located between the left ventricle and the aorta. Bicuspid (mitral) valve loved between the left atrium and left ventricle which only let blood flow this way. Tricuspid valve located the right atrium and right ventricle which let the blood flow into ventricles. Chordae tendineae looked like strings in the heart. Intrerventricular septum is the wall that separating the lower chambers. The data show the location of each part of the heart that help pump the blood to benefit the body and remove the
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.
Marty Smith is a 67-year-old male who has called 911 after experiencing chest pain and dizziness. The paramedics arrive and notice a bottle of nitroglycerin on the table. The patient states he has angina and is to take the medication as needed for chest pain. He took one pill an hour ago and a second pill 10 minutes prior to calling 911. Prior to this evening’s chest pain, he ate at a buffet and consumed 4 whiskey drinks. His ECG is not indicative of a myocardial infarction.
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. There are three main types of blood vessels that help blood flow through your heart. They are
It is a thin membrane that lines the outmost layer of the heart. Digging deeper, the next layer is the myocardium. The myocardium is a thick muscular layer that sits lays between the epicardium and endocardium. Lastly, the endocardium is a thin membrane that lines the inside of the heart.
Arteries have thick muscular walls and a small lumen passage. According to L. Tucker they are constructed with three layers:
When your heart beats it pumps blood to the lungs and around all of the body. The right side of the heart receives de-oxygenated
Heart failure is when the heart is not functioning properly and becomes unable to supply the body properly with oxygen. Congestive heart failure is when this lack of function begins affecting the lungs ability to function normally by filling the alveoli with fluid. During normal functioning of the cardiovascular system, blood arrives at the right atrium of the heart via the vena cava. The right atrium empties blood into the right ventricle, which pumps it’s contents into the arterioles surrounding the alveoli of the lungs. From the lungs, the blood voyages to the left atrium of the heart. From there it is dumped into the left ventricle, which pumps it back out to the body eventually reaching the vena cava and thus completing the cycle.
The heart is a tough operating mechanism which moves blood around the body through a very advanced system called arteries and capillaries; the blood is then carried back to the heart by means of veins. Blood pressure is the thrust of this blood in the body pushing up against the inside walls of the arteries as the heart is pumping.
The aim of this experiment is to observe internal structure of a mammalian heart. The objective of this experiment is check how heart chambers, vessels and valves of the heart help the heart to achieve its function of pumping blood all over the body. In addition, this experiment would help us understand the double circulation of blood and reasons why it is vital for mammalian organisms.