Circulatory system

Based on our findings, the NSAIDs aspirin and ibuprofen do have an impact on the heart rate of the Lumbriculus variegatus worms as evidenced by Figures 2 and 3 above. We observed that caffeine also had an impact on the heart rate of the worms. We can state that our hypothesis was correct when it came to the ibuprofen solutions because evidence supports the claim that the ibuprofen does increase the heart rate in Lumbriculus variegatus. Furthermore, as the concentration of ibuprofen increased,…

Introduction: When you first take a look at the maned wolf you notice it's similar look of it's face to a red fox but it's long legs are what make you take a second look. It kinda reminded me of that scene in Harry Potter and the Prizoner of azkaban ,when professor Lupin turned into that hideous werewolf ,with those freakishly long legs.Even though this species has the word”wolf” in it's name, and has a face of a fox , and the long legs like the ghazelle.It is in fact none of them. Genus…

The Cardiovascular System is one of the most important systems in the body of an organism. It is responsible for carrying the oxygen and nutrients needed for survive through the body. The only organ in this system is the heart, containing four chambers; the left and right atrium and the left and right ventricle, which will be described in further detail later on. Although this system is very important, problems can occur that disrupt the normal routine. One of these we will be focusing on today…

Currently only 21% of Americans meet the physical activity guidelines set forth by the Centers for Disease Control and Prevention (CDC). This has become a major concern in today's society, as many of its effects are being seen. One of ten deaths worldwide result from insufficient physical activity (WHO). Physical activity is any type of movement that requires energy. Being physically active contributes to a person's overall fitness, which is a general state of health and wellbeing. Physical…

Introduction: The heart plays a crucial role in the human circulatory system. The large organ pumps the blood through arteries, veins, and capillaries to distribute oxygen and nutrients to the body. The circulatory system also plays a part in removing our waste products. Humans have double circulation, meaning the blood passes through the heart twice before completing one round; this allows for the blood to be “re-pressurized”. Once the right side of the heart receives blood from the body,…

with fresh O2 and then moves out of the lungs via pulmonary veins and moves out of the other chambers of the heart and to the body and once again completes the cycle. It stands to reason that due to the short distance of a trip through the pulmonary system pressure in the lungs would be less than arterial pressure. So imagine if you will that the pathways in the lungs were narrowed and the pressure increased. The right ventricle (which is responsible for moving blood into the lungs) would have…

standard of death is to die and be pronounced deceased or “The UDDA also recognizes whole-brain death -- irreversible cessation of all functions of the entire brain -- as a legal standard of death. A person can be legally dead even if her cardiopulmonary system continues to function” (Veatch). A proposal is in motion to also “classify those in irreversible coma and PVS as dead”(Veatch). PVS means permanent vegetative state. Strokes occur when oxygenated blood cannot reach part of the brain.…

The Limulus polyphemus has a primitive blood. According to Bang & Levin (n.d.) the Atlantic horseshoe crab blood carries oxygen and has a special pigment that is a protein called hemocyanin. Homo sapien blood has a very similar protein in it called hemoglobin that makes the blood red from iron in the blood. Hemocynanin has copper molecules in it causing the Atlantic horseshoe crab to have blue blood. The hemocytes (blood cells) in the blue blood have a special clotting aspect. The hemocytes…

Introduction: A cardiac output, also know as minute volume is the volume of blood ejected from the left or right ventricle of the heart in one minute. It’s the primary determinant of oxygen transport within the heart and entire body. Sufficient blood flow is highly important especially during exercise because the body will need much more oxygen. With the need for more oxygen, the heart will begin to beat and pump faster during exercise. As the heart rate increases so will the blood flow, also…

tobacco is infections such as pneumonia or influenza. Pneumonia is when air sacs in the lungs become inflamed and may fill up with fluid which is life-threatening. In addition to the effects of a person’s respiratory system, tobacco can also affect the circulatory system. The circulation system involves your organs and circulates blood and conveys nutrients into the body. It’s important to realize that tobacco can cause high…