Human organ systems and natural selection

 

Human Organ Systems

The human body is truly remarkable and is designed to function effectively. Organs are important structures composed of different tissues that facilitate specific functions within the body. Organs function as part of an integrated group of structures known as organ systems. These organ systems form the organizational units that are responsible for crucial processes necessary for sustaining life.

Examples of organ systems include, but are not limited to, the cardiovascular system, the digestive system, the musculoskeletal system, the nervous system, the excretory system, the endocrine system, and the respiratory system. Even organ systems do not function alone. These systems work together, interacting with other organs in a functional network that keeps the body in balance. (Look up the term homeostasis in your text.) When homeostasis or the normal functioning of organ systems is disrupted, disease may develop, causing injury to the body or even death.  

The following case studies detail an outcome associated with a disease or organ malfunction:

Select ONE study to investigate further for your assignment.

Critically evaluate the information provided, and correlate it with the organ systems that are affected in the scenario. Use the information that you have gathered to answer the assignment questions that follow the case study. Present your work as an APA-formatted research report.

Case Study 1:

Atherosclerosis is narrowing of the arteries caused by the accumulation of fatty deposits on the arterial walls. On June 22, 2002, the St. Louis Cardinals were preparing for their upcoming baseball game against the Chicago Cubs. Concern arose when their prized pitcher, 33-year old Darryl Kile did not show up for practice. Soon after, he was found still in his hotel room where he had suddenly died in his sleep (New York Times, 2002). It was discovered that the cause of death was related to three of his coronary arteries being 80–90% blocked as a result of atherosclerosis (New York Times, 2002), which ultimately caused him to suffer a heart attack.

Answer the following 3 questions in regard to this case study:

  1. Provide a description of how the heart functions. Based on this, explain why atherosclerosis would result in a heart attack.
  2. How are arteries different from veins and capillaries? Describe the functions of arteries, veins, and capillaries.
  3. Vertebrates and some invertebrates have a closed circulatory system. Describe each of these. Explain the advantage of having a closed circulatory system over an open circulatory system.

Case Study 2:

Cigarette smoking remains the leading preventable cause of death in the United States, causing an estimated 438,000 deaths—or about 1 out of every 5 smokers—each year (Woloshin, Schwartz, & Welch, 2008).

Mr. Amos is 57 years old and has been smoking for the past 30 years of his life. A recent doctor’s visit revealed that Mr. Amos has stage-3 lung cancer, characterized by his symptoms of nagging chest pain, fatigue, coughing up blood, substantial weight loss, and increased carbon dioxide levels in his blood. The doctor informed Mr. Amos that had he quit his smoking habit several years ago, he would have reduced his risk for developing lung cancer later in life. Mr. Amos immediately began treatment for the lung cancer that had metastasized to his lymph nodes.

Answer the following 3 questions regarding this case study:

  1. Briefly describe the respiratory system. What main components in cigarettes affect the respiratory system? Explain the effect of 2 compounds on specific organs, cells, and processes in the respiratory system.
  2. There are alternate mechanisms of transporting carbon dioxide (CO2) and oxygen (O2) in the blood. Explain how smoking might lead to increased levels of carbon dioxide in the blood.
  3. Can smoking affect other organ systems of the body? Give specific examples, and briefly explain your answer.

Follow these guidelines for your APA research paper:

  • Utilize at least 2 credible sources to support the arguments presented in the paper. Make sure you cite them appropriately within your paper, and list the references in APA format on your Reference page. 
  • In accordance with APA formatting requirements, your paper should include an Abstract, Title, and Reference page; should be double-spaced; and should include a running head and page numbers. Your paper should be 2–3 pages in length, not counting the Title page, Abstract, and Reference page.

References

Alman, L. K. (2002). Heart disease can hit even the young, like Kile. The New York Times. Retrieved from https://www.nytimes.com/2002/06/25/sports/baseball-heart-disease-can-hit-even-the-young-like-kile.html

Woloshin, S., Schwartz, L, & Welch, H. G. (2008). The risk of death by age, sex, and smoking status in the United States: Putting health risks in context. Retrieved from https://academic.oup.com/jnci/article/100/12/845/882914

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

Read more

Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

Read more

Privacy policy

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

Read more

Fair-cooperation guarantee

By placing an order with us, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency