course material

1. The human body is truly remarkable and is designed to function
effectively. Organs are important structures composed
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. In this
assignment, you will explore organ systems, as well as associated diseases or
malfunctions.Assignment details:Take a look at the following case studies that detail an
outcome associated with a disease/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. For assistance with
your assignment, please use your text, the Library, Web resources, and course
materials.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 – each
year (National Cancer Institute, 2008).Mr. Amos is now 57 years old and has been smoking
for the past 30 years of his life. A recent doctor’s visit reveals 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 begins
treatment for the lung cancer that has metastasized to his lymph nodes.Answer the
following assignment questions:1. What main components in cigarettes affect the
respiratory system? Explain their effects on specific organs, cells and/or 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

2. carbon dioxide in the blood.3. Can smoking affect other organ systems of the body? Give
specific examples and briefly explain your answer.4. How can you correlate cellular
respiration with the respiratory system?5. Does smokeless tobacco present a reduced risk
for lung cancer and other smoking associated diseases? Provide evidence for your
answer.National Cancer Institute. (2008). Tobacco statistics snapshot. Retrieved from
http://www.cancer.gov/cancertopics/tobacco/statisticssnapshot#0_references