The Anatomy And Physiology Of Blood Vessels Essay

Circulation 1. Compare and contrasts the anatomy and physiology of blood vessels: arteries, veins and capillaries. Why are these differences significant in the overall function of the circulatory system? Please be specific. The arteries are thicker and more elastic because of the fast pumping of blood that leaves the heart to other organs to the body, as where the veins are small due to the low blood flow because of the slow movement from the capillaries to the veins not like the forceful pumping from the heart to the arteries to the rest of the body. The Oxygenated blood goes through the arteries except the pulmonary arteries. Then Deoxygenated blood goes through the veins except the pulmonary veins. The lumen of the artery is narrow, were as the lumen of the veins is wider. There are not valves in the arteries, were as the valves are present in veins. In the arteries, endothelial cells of tunica intima are more long then wider, and have more elastic membrane that is more developed. Then the Tunica media is more muscular, and the tunica extrema is not as developed. In veins, the endothelial cells of tunica intima are not as long and have more elastic membrane then being developed. The Tunica media is l ess muscular were the tunica extrema is more developed. Arteries are deep within and the veins are more superficial. Capillaries are microscopic vessels; they carry blood from the arterioles then go to the small veins or venules. The wall of the capillary made up of aShow MoreRelatedAnatomy And Physiology And Describe Their Subdivisions942 Words   |  4 Pages1) Define anatomy and physiology and describe their subdivisions. - Anatomy studies the structure of body parts and their relationships to one another. Body structures can be seen, felt, and examined closely. - Gross, or macroscopic, anatomy: Study of large body structures visible to the naked eye, such as the heart, lungs and kidneys. - Regional anatomy, all the structures (muscles, bones, blood vessels, nerves, etc.) in a particular region of the body, such as the abdomen or leg, are examinedRead MoreVascular Lymphatic System And Atherosclerosis1280 Words   |  6 PagesJazmin Fontan Bryant Stratton College AHLT120: Anatomy and Physiology-1 Dr. Pamela K. Hannaman, MS, ND, CPC, CMRS, CCMA November 18, 2015 Narrowing and hardening of the artery walls causing buildup of fatty tissues (plaque), cholesterol and other substances, which may restrict blood flow is referred to as atherosclerosis. Having restriction of blood flow develops damage to a patients’ organs and also increases the risk of heart attacks, blood clots, and strokes overtime (WebMD, 2015). ItRead MoreEssay about Eggs, Sperm, and Hormones1114 Words   |  5 Pagesopening. Semen comes from the prostate gland and the main function of this fluid is to transport sperm to the female reproductive system. a. Thompson, G. (n.d.). Understanding Anatomy and Physiology. Understanding Anatomy and Physiology. Retrieved June 12, 2014, from https://content.learntoday.info/collegis/eBooks/Anatomy/OPS/book.html?page=431# b. McMahon, M., Osborne, K. (2014, May 24). What is Semen?. WiseGeek. Retrieved June 12, 2014, from http://www.wisegeek.com/what-is-sperm.htm 2. TheRead MoreWeek One Study Guide Anatomy and Physiology Essay1247 Words   |  5 PagesAN INTRODUCTION TO HUMAN ANATOMY PHYSIOLOGY 1. Define the terms anatomy and physiology, and explain their relationship using an example of a human structure with its corresponding function. Anatomy: The branch of science concerned with the bodily structure of humans, animals, and other organisms, esp. as revealed by dissection. Physiology: The branch of biology that deals with the normal functions of living organisms and their parts. Anatomy and physiology are connected in the wayRead MoreThe Cardiovascular System Across The Lifespan889 Words   |  4 Pagescardiovascular system across the lifespan An investigation will be conducted in to the cardiovascular system across the lifespan of individuals with and without learning disabilities from birth to later life. This essay will explain and describe the anatomy and physiology of the cardiovascular system span from birth to later adulthood. Whilst also looking at specific conditions and disorders that can present across the lifespan of an individual the discussion examines these disorders and conditions, ExamplesRead MoreUsing One Cell Necessary For Life And Discusses Its Properties Of Life1334 Words   |  6 Pagesin plants and animal functioning. This essay aims at using one cell necessary for life and discusses its properties of life, the core chemical terminology, its molecules, and compounds. Specifically, the assignment will describe the basic anatomy and physiology of the cell, how the cell respiration, photosynthesis, and reproduction occur in a concise manner. The paper will also discuss Mendel’s Laws as well as the DNA structure and function of the cell. Finally, the paper will conclude by discussingRead MoreBlood Pressure Regulation1269 Words   |  6 PagesBlood pressure regulation and changes occurring after increase in blood pressure Each time the heart pumps, it sends blood all over the body to supply organs and tissues with oxygen and nutrients. The strength of the force created as the heart pumps blood into the vessels together with the vessels’ resistance to the blood flow is defined as the body’s blood pressure (Darovic, 2002). A normal range blood pressure (BP) must be between 100-130mmHg systolic (when the heart is beating) and 60-90mmHgRead MoreHomeostatic Mechanisms That Maintain Body Fluid Levels Essay4196 Words   |  17 PagesTransport- requires protein carriers that join together reversibly with the substances to be transported across the membrane using (ATP) to energize its protein carriers also known as solute pumping Ref:Marieb, Elaine, N, Essentials of Human Anatomy and Physiology, Pearson, International, Edn, 9th, 2009, ppg, 76,78 Which is the most important electrolyte for the maintenance of osmosis pressure and volume in the extracellular fluid (ECF) compartment? The most important electrolyte is sodium whichRead MoreNervous Systems And The Nervous System1749 Words   |  7 Pagesin the blood causing the carbon dioxide to become carbonic acid this causes the pH in the blood to be lowered. Thereafter the receptors in the blood which are chemoreceptors detect the change of pH. A message gets sent by the chemoreceptors by a sensory neurone to the brain. The sensory neurone connects to the relay neurone which then sends a message through the motor neurone away from the CNS. Thereafter the cardiac muscles contract more and the blood vessels dilate causing more blood to flowRead MoreHomeostasis: Feedback and Body1616 Words   |  7 Pagesinside the cells, one third of it fills the narrow spaces outside the cells. That fluid is identified as the extracellular fluid. (Guyton Hall, 2006). Extracellular fluid is always in constant motion, travelling throughout the body in the circulating blood. Ions and nutrients that make up the extracellular fluid are needed by cells to sustain cell life. Hence, all cells in essence live in the same environment – the extracellular fluid. In addition, the proper functionality of body cells is also highly

Ethical Issues Of Death And Dying - 1324 Words

Ethical Issues of Death and Dying There are many ethical issues that the medical field faces daily. One major issue that is a common debate recently is death and dying and the ethical dilemmas associated with this stage in life. There are many different routes a patient can take when they are diagnosed with a terminal illness, two routes that are often up for debate are palliative care and physician assisted suicide. Many ethical concepts are brought up in the debate of these routes of care, sometimes even conflicting one another. Since medicine has advanced over many years we are experiencing a growing population of elders. With this increase in the elderly population, the debate of death and dying has become an important topic to†¦show more content†¦Today we are face with death in a different setting then our ancestors, instead of dying at a younger age and dying in our home with our families, people are now dying at a hospital or in a medical setting. We are living longer because of the advances in medic ine, this is causing us to develop diseases that our ancestors never had to face. Our ancestors did not live long enough to develop some of the diseases we face today. As Jones (2011) provides, â€Å"we don’t just die of different diseases then our ancestors, we also die in different circumstances† (p. 302). The changes in circumstances have caused us to reevaluate what is believed to be ethical when faced with dying. There are many medical options a terminal ill or elderly patient that is dying can choose from, however there is great debate whether some of these options are ethical. With the many debates on what is and is not ethical with the end of life care, humans are faced with more ethical issues. All humans have an idea of what they believe to be moral or ethical. Looking at ethical concepts helps us as a society determined what treatment may be ethical or moral for a person during a chronic or terminal stage in their life. One ethical concept that plays a large role in death and dying is autonomy. The freedom for a patient to have control over their own health care decisions. If a patient has the ability to make informedShow MoreRelatedEthical and Legal Issues of Death and Dying2409 Words   |  10 PagesEthical and Legal Issues of Death and Dying Tracey Rentas Old Dominion University CHP 480 November 30, 2012 Dr. P. Lynch-Epps Abstract This was not easy to put this paper together. Recently my mother- in- law passed away, and her death was devastating to the entire family as well many friends. She was diagnosed with Alzheimer’s and became dependent as she neared the end of life. All anyone of us could do was comfort her with our expression of loves while we tried to comprehend what wasRead MoreEthical and Bioethical Issues in Medicine: Death and Dying1385 Words   |  5 PagesEthical and Bioethical Issues in Medicine: Death and Dying Ethics, in medicine, is described as applying one’s morals and values to healthcare decisions (Fremgen 2012). It requires a critical-thinking approach that examines important considerations such as fairness for all patients, the impact of the decision on society and the future repercussions of the decision (Fremgen 2012). According to Fremgen (2012), bioethics concerns ethical issues discussed in the perspective of advanced medical technologyRead MoreEuthanasia And Physician Assisted Suicide1629 Words   |  7 Pagessociety often contemplates what death will be like. Will death be peaceful or painful? How will our death affect the ones we love? It would seem that most people would desire to die with dignity. Having the choice to die peacefully is a valuable option that every human should be able to make for themselves. For those with terminal illnesses or major health problems, assisted suicide creates options to reduce the amount of suffering the patient must enduring. Dying with dignity could be beneficialRead MoreEssay Euthanasia1740 Words   |  7 Pagesphysician assisted suicide is a very sensitive issue debated in this country today. Euthanasia is the act of painlessly ending the life of a person for the reason of mercy. It is sometimes referred to as mercy killing. Americans are hearing more and more horror stories of the elderly tragically killing his or her spouse in order to avoid painful and horrible deaths. It is sad and amazing the extreme measure one had to go through to accomplish his or her death. More and more Americans are speakingRead MoreEssay about End of Life Decisions719 Words   |  3 PagesWith anything that is done in the medical field there will be ethical issues that surround it. Since we are only on this earth for so long then death becomes one of those issues that we must face. With the new advancements in technology death can become complicated. Also since we have other issues such as euthanasia involved things will only get even more complicated. Euthanasia, definition of death, living will decisions, and ethical issues surrounding these subjects will be discussed. End of LifeRead MoreThe Moral Issue Of Euthanasia1212 Words   |  5 Pages1. For this assignment I chose the moral issue of Euthanasia. The case study is about a 20 year old woman dying of ovarian cancer and decides to be euthanized. I feel that this case was extremely relevant, especially with the rise of trend in today’s society. Euthanasia is currently a very popular thing that is continuing to grow in other states as congress decides whether or not to make it legal or refuse to pass it and keep it as illegal. I feel that by looking at this case study I hope toRead MoreHospice Services: A Valuable Resource within a Community1505 Words   |  6 Pagesand venue of care for those suffering from a terminal illness and for their families. The choice of hospice services and the approach of palliation of symptoms, comfort care, and the end of life can be difficult for a patient and family. The many issues that surround the concept of hospice care may cause the patient and f amily feelings of great sadness, grief, anticipatory grief, anger, defeat, loss, and many other complicated and gut wrenching thoughts and emotions (Chi Ho Chan Fong Tin, 2012)Read MoreThe Death Of Physician Assisted Suicide1731 Words   |  7 PagesDie With Dignity It is obvious this is a very controversial issue that is discussed daily by those who wish to die to avoid loss of dignity and also by those who think it could be immoral. For physician-assisted suicide to even be considered the patient must be of sound mind when they are requesting the physician-assisted suicide. To guarantee that the process is carried out correctly a doctor or a witness should be there to prove consciousness. The patient must be diagnosed with a terminal illnessRead MoreThe Legalization Of Physician Assisted Suicide1720 Words   |  7 PagesIt is obvious discussing physician-assisted suicide is a very controversial issue that is discussed daily by those who wish to die to avoid loss of dignity and also by those who think it is unethical. For physician-assisted suicide to even be considered, the patient must be of sound mind when they are requesting death with dignity. Physician-assisted suicide should be a legal option for people who are unable to end their own l ives. However, there should be safeguards to prevent any sort of abuseRead MoreAdvocacy And It s Role Of Cultural Diversity920 Words   |  4 PagesTabytha Balash Ohio University  Advocacy And It’s Role In Cultural Diversity Facing ethical dilemma’s is nothing new to nursing. As our society becomes more culturally diverse, cultural ethical dilemmas will become more common. Several dilemmas can be contributed to the lack of education or misunderstanding by the medical staff, and the patient’s own cultural values and beliefs. This paper will discuss an ethical dilemma encounter with another culture in my own nursing practice. An explanation

Gregor Mendel Free Essays

Who was Gregor Mendel? Mendel was a scientist who gained a substantial amount of fame from his study of genetics. He studied the pea plant and its inheritance of certain traits. 2. We will write a custom essay sample on Gregor Mendel or any similar topic only for you Order Now What contributions did he make to science? His study of genetics led to an increase interest in the study of genetics. His biggest contribution to the study of science was his discovery of particulate inheritance, dominant and recessive traits, genotype and phenotype, and the concept of heterozygous and homozygous. . Which species did he work with? Mendel worked with the simple pea pod plant in his 8 year science experiment 4. State his 4 hypothesis The first part, or law, states that, â€Å"Alternative versions of genes account for variations in inherited characters. † The second law states that, â€Å"For each character trait, like height, color, texture, etc an organism inherits two genes, one from each parent. The third law declares that, â€Å"If the two alleles differ, then one, the dominant allele, is fully expressed in the organism’s appearance; the other, the recessive allele, has no noticeable effect on the organism’s appearance. † The fourth law states that, â€Å"The two genes for each character segregate during gamete production. † 5. Explain the concept of independent assortment The concept of independent assortment states that the emergence of one trait will not affect the emergence of another. For example, a pea plant’s inheritance of the ability to produce purple flowers instead of white ones does not make it more likely that it would also inherit the ability to produce yellow peas in contrast to green ones. 6. What conditions were overlooked by Mendel? Darwin’s theory that â€Å"if the wide variation observable in cultivated plants were caused by the changed conditions and increased nourishment experienced on being brought into cultivation, then this cause of variation must continue to act. † How to cite Gregor Mendel, Papers

Apathy A Death Wish free essay sample

Apathy: A Death Wish Science may have found a cure for most evils: but it has found no remedy for the worst of them allthe apathy of human beings. Some might think that when Helen Keller spoke those words, she was talking about some weird disease in an exotic place that affects people in the slums. Or probably a flaw found in the mentally ill. She was not talking of a disease or a problem that affects only one group of people, but one that affects society as a whole. Apathy is not some dreaded illness that attacks only the weak. Apathy is instead a base part of humanity, one that we as people would rather not admit to, even as it stares us in the eye. What is apathy? Why is it such a hated word, such an awful state to be living in? Quite simply, apathy is indifference. Apathy is not so much a physical issue, nor is it merely a symptom of boredom, as it is a problem within our spirit. It is a collapse of the will to vigorously press forward under the burdens of contrary forces and constant repetition of tasks until we either no longer care about activities or their outcomes, or we mechanically go through the motions in a state of sleepwalking where we perform the tasks ecessary but are not really consciously involved as we ought to be. Apathy is indifference to the sufferings of others. Apathy is indifference to the happenings of the world around the individual. Apathy is indifference to anything that does not directly affect that specific human being, or his surroundings. Apathy is remaining neutral in the face of adversity if the problem does not directly concern that person. Apathy has always been the shame of humanity, and will continue to plague us until we realize that our minute lives are not all that matters in this world. Apathy comes in all forms, shapes and sizes. We come across apathy or indifference almost every single day of our lives. We have encountered them in all of the articles that weve read in class. But have you ever wondered why? Why do people become indifferent when others need them the most? Why do people Just watch from a distance if others are in danger? In the article Thirty- Eight Who Saw Murder Didnt Call the Police, Martin Gansburg gave us details that could probably answer that question, Lack of knowledge, fear and selfishness. People were uncertain of what was happening. People didnt help because they thought it was Just a normal argument. We thought it was a lovers quarrel. 129 Couples do fght, sometimes when they do, it becomes verbally violent, and thats what some of the neighbors thought. Some of them Just gave themselves an assumption of what was really going on. Therefore we have lack of knowledge. Second is fear. People clearly stated that when investigators interviewed them. Frankly, we were afraid 129 l didnt want my husband to get involved. 129 Fear of the fact that if they tried to get involved, their loved ones or they personally will be in Jeopardy. They were protecting themselves and their families from the iolence that was happening outside their homes. That is somewhat understandable, but some people didnt care about what was happening around them because all they cared about was their welfare. It did not involve them so it did not matter. l was t ed, ne said without emotion. l went back to Sanchez 3 Their selfishness gave other people the chance to take somebody elses life. They turned a blind eye on somebody who needed their help. In the second article Who Killed Benny Paret? by Norman Cousins, we encountered the other type of apathy, the kind where people let the wrong thing slide because it is accepted by the ociety. The article was about boxing and people who watch it. It was also about people who didnt do anything considering the fact that a person died because of it. When you think about it, boxing is about putting two men in a ring and whoever gets hurt the most loses. People pay to see that happen. I could only come up with two reasons. One is that people see it as mere entertainment. Two, is due to the money it involves. People think its alright because its part of the entertainment industry. People forget that it boxers are real people who get real injury. When a boxer gets hit n the face and has blood gushing through his forehead, people will still continue to cheer him on until his opponent falls on the ground and gets knocked out. The time the crowd comes alive is when a man is hit hard over the heart or the head, when his mouthpiece flies out, when the blood squirts out of his nose or eyes, when he wobbles under the attack and his pursuer continues to smash at him with pole- axe impact. 340 Since boxing is considered to be a source of entertainment, and entertainment is business, and business is money, the second and last reason is wealt h hunger. People who have the power to stop this anomaly wouldnt do it because it gives them an unending source of money. According to Mike Jacobs, a prize-promoter, it will always be about pleasing the crowd. Sanchez 4 miou put killers in the ring and the people filled your arena. You hire boxing artists- men who are adroit at feinting, parrying, weaving, Jabbing, and dancing, but who dont pack dynamite in their fists- and you wind up counting your empty seats. So you searched for the killers and sluggers and maulers. 339 The world is a dangerous place to live; said Albert Einstein, not because of the people who are evil, but ecause of the people who dont do anything about it. Whether it is ignorance, fear, selfishness, entertainment or money, we shouldnt let apathy get the best of us. What people dont realize is that apathy is like death in its own form. We shouldnt let it kill us by turning a blind eye to people who need our help. We need to take sides and stand up for whats right. Apathy and neutrality oppresses the victims, and silence encourages their tormentors. We are guilty of complicity in th e suffering of others when we are indifferent to their pain. People who say that there is no cure to apathy are wrong. There is a cure, involvement.