BIOS 255n DeVry Entire Course
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> <strong>Entire</strong> <strong>Course</strong><br />
Downloading is very simple, you can download this <strong>Course</strong> here:<br />
http://wiseamerican.us/product/bios-<strong>255n</strong>-devry-entire-course/<br />
Or<br />
Contact us at:<br />
SUPPORT@WISEAMERICAN.US<br />
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> <strong>Entire</strong> <strong>Course</strong><br />
<strong>BIOS</strong>255<br />
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> <strong>Entire</strong> <strong>Course</strong><br />
(Anatomy and Physiology)<br />
<strong>BIOS</strong> <strong>255n</strong> Week 1 Discussion 1<br />
The Heart (graded)<br />
The human heart is a four-chambered hydraulic pump. A hydraulic pump uses differences in pressure to move material<br />
from areas of higher pressures to areas of lower pressures. The pressure differences created by the heart move blood<br />
between the chambers and the circulatory systems. Let’s begin our discussion by identifying the chambers of the heart<br />
and their functions, the associated valves, and the names and general route of their associated great vessels.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 1 Discussion 2<br />
The Contraction Cycle (graded)<br />
The contraction cycle of the heart is the series of events that occurs during one heartbeat. Each beat of the heart<br />
includes the contraction (systole) and relaxation (diastole) of the atria and then the ventricles. Let’s begin the<br />
examination of this cycle by discussing electrical conduction through the heart.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 2 Discussion 1<br />
Blood Vessel Structure (graded)<br />
Let’s start by discussing the structure of our blood vessels. Let’s each take a characteristic of (1) arteries, (2) veins, or<br />
(3) capillaries. Build upon what your classmates say to enable us to have a more full understanding of these vessels<br />
that are essential for our existence.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 2 Discussion 2<br />
Blood Flow Dynamics (graded)
Cardiac output is the amount of blood ejected from the left or right ventricle in any given minute. Cardiac output must<br />
be maintained in order to keep sufficient blood flow through the capillaries. Identify the factors that directly affect blood<br />
flow in the circulatory system.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 3 Discussion 1<br />
Whole Blood (graded)<br />
Describe the composition, physical characteristics, and functions of whole blood. Explain why it is classified as a<br />
connective tissue.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 3 Discussion 2<br />
Liquid Connective Tissue (graded)<br />
Explain the similarities and differences among serum, lymph, and plasma. Each student should take one characteristic<br />
of the fluid, extracellular component of this connective tissue and explain how it relates to the other liquids.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 4 Discussion 1<br />
The Lymphatic System (graded)<br />
How do the various components of the lymphatic system operate? We have talked about many organ systems. In what<br />
ways are components of the lymphatic system involved in many other organ systems? Try to focus on one element of<br />
this system and provide an in-depth view of its contribution to our overall health.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 4 Discussion 2<br />
Nonspecific Immunity (graded)<br />
How do the various elements of the nonspecific immune system function in providing daily protection against a variety<br />
of pathogens? Each student should provide a unique aspect of the nonspecific immune system and educate the rest<br />
of us concerning its function and how effective (or ineffective) it is against one class of pathogens.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 5 Discussion 1<br />
B and T Cells (graded)<br />
Our knowledge and understanding of the various forms of lymphocytes continue to expand. Our initial discussion this<br />
week will be on the various forms of B and T cells — each of us should take one class of lymphocytes and explain it’s<br />
role in the adaptive immune process. As you comment on other students’ postings be sure to add additional insight into<br />
the mechanisms of the subclass of cell and its interactions with both components of the innate and other aspects of the<br />
adaptive immune system.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 5 Discussion 2<br />
Vaccinations – Friend or Foe (graded)<br />
Recently a number of individuals have claimed that adjuvants, such as thymersol in vaccines, lead to the development<br />
of a variety of disorders, such as autism. Although these initial claims have not been substantiated and have since<br />
been withdrawn from the scientific literature, the concern continues today. How would you counsel parents concerning<br />
vaccination? Discuss the issue of herd immunity and the risks in our modern society related to refusal to provide<br />
vaccinations.
<strong>BIOS</strong> <strong>255n</strong> Week 6 Discussion 1<br />
Respiratory Anatomy (graded)<br />
Describe the anatomy and histology of the respiratory system and how each of the functions are related.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 6 Discussion 2<br />
Breathing (graded)<br />
Describe the events that cause inhalation and exhalation and how Boyle’s law relates to the events.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 7 Discussion 1<br />
Transport of Gases (graded)<br />
Describe how oxygen and carbon dioxide are transported in the blood, and explain how their loading and unloading is<br />
affected by temperature, pH, BPG, and PCO2.<br />
<strong>BIOS</strong> <strong>255n</strong> Week 7 Discussion 2<br />
Respiratory Diseases (graded)<br />
Compare the causes and consequences of chronic bronchitis, emphysema, asthma, and lung cancer. Once we have<br />
made these comparisons then we should follow up on other disorders that affect either the upper or lower respiratory<br />
systems. Be sure to comment on others postings in terms of new information that can contribute to a more complete<br />
understanding of the diseases you pick.<br />
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> Week 4 Midterm Exam<br />
Question 1. Question : (TCO3) Which of the following is a major function of blood?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
production of enzymes<br />
production of neurotransmitters<br />
transduction of pressure<br />
transportation of heat<br />
contractility<br />
Question 2. Question : (TCO3) Which of the following blood types is a person whose blood cells were<br />
agglutinated by anti-A serum but not by anti-B serum nor by anti-Rh serum<br />
<br />
<br />
<br />
<br />
<br />
B Negative<br />
B positive<br />
negative<br />
positive<br />
A negative<br />
Question 3. Question : (TCO3) Which of the following formed elements in blood only temporarily move through<br />
the blood before they become fixed in the tissues as macrophages?
o<br />
o<br />
o<br />
o<br />
o<br />
erythrocytes<br />
thrombocytes<br />
monocytes<br />
basophils<br />
eosinophils<br />
Question 4. Question : (TCO3) Reduced vitamin B12 absorption from the small intestine due to reduced intrinsic<br />
factor production from the stomach results in a condition called<br />
o<br />
o<br />
o<br />
o<br />
o<br />
hemorrhagic<br />
aplastic anemia<br />
megaloblastic anemia<br />
pernicious anemia<br />
iron deficiency anemia<br />
Question 5. Question : (TCO3) Serum is<br />
o<br />
o<br />
o<br />
o<br />
o<br />
The same as plasma<br />
plasma without the clotting factors<br />
the same as lymph<br />
formed during the first step in blood clotting<br />
pulmonary interstitial fluid<br />
Question 6. Question : (TCO3) Which of the following precursor cells give rise to T-cells?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
myeloid stem cells<br />
meyloblasts<br />
lymphoid stem cells<br />
proerythroblast<br />
megakaryoblast<br />
Question 7. Question : (TCO3) Which of the following opposes the action of thromboxane A2 by inhibiting platelet<br />
adhesion and release?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
heparin<br />
fibrinogen<br />
plasmin<br />
antithrombin<br />
prostacyclin<br />
Question 8. Question : (TCO3) Myeloid stem cells reside in<br />
o<br />
o<br />
o<br />
o<br />
o<br />
the blood<br />
the yellow marrow<br />
the thymus gland<br />
the red marrow<br />
the spleen
Question 9. Question : (TCO1) The tough, inelastic dense connective tissue that surrounds the heart is called<br />
the<br />
o<br />
o<br />
o<br />
o<br />
o<br />
endocardium<br />
pleura<br />
serous pericardium<br />
fibrous pericardium<br />
epicardium<br />
Question 10. Question : (TCO1) During heart transplants, the ______ nerves are severed resulting in a faster<br />
resting heart rate (approximately 100 beats per minute) after the transplant<br />
o<br />
o<br />
o<br />
o<br />
o<br />
glossopharyngeal<br />
cardiac accelerator<br />
vagus<br />
phrenic<br />
cervical spinal<br />
Question 11. Question : (TCO1) Which of the following factors lead to depressed cardiac output?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
acidosis<br />
alkalosis<br />
hypoxia<br />
all of the above<br />
none of the above have any depressive effects on the heart<br />
Question 12. Question : (TCO1) If a person’s resting heart rate is 70 and their resting stroke volume is 60 ml of<br />
blood, then their cardiac output is _______ L/min<br />
o 10<br />
o 4200<br />
o 4.2<br />
o 130<br />
o 1.3<br />
Question 13. Question : (TCO1) The purpose of the foramen ovale during fetal life is to<br />
o<br />
o<br />
o<br />
o<br />
o<br />
have the blood bypass the stomach<br />
have the blood bypass the liver<br />
have the blood bypass the lungs<br />
have the blood bypass the placenta<br />
have the blood bypass the brain<br />
Question 14. Question : (TCO1) Heart murmurs are often heard in individuals with abnormalities in the ____ of<br />
the heart.<br />
o<br />
o<br />
o<br />
valves<br />
myocardium<br />
SA node
o<br />
o<br />
AV node<br />
endocardium<br />
Question 15. Question : (TCO1) Which of the following electrocardiogram (ECG) waves represents ventricular<br />
repolarization?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
R wave<br />
Q wave<br />
P wave<br />
S wave<br />
T wave<br />
Question 16. Question : (TCO1) Which part of the brain contains the cardiovascular center that regulated heart<br />
rate?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
midbrain<br />
cerebrum<br />
medullar oblongata<br />
cerebellum<br />
thalamus<br />
Question 17. Question : (TCO1) Which layer of the heart is comprised of epithelial cells?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
myocardium<br />
epicardium<br />
endocardium<br />
pericardium<br />
serous pericardium<br />
Question 18. Question : (TCO2) Which of the following categories of hypertensive drugs lower blood pressure<br />
by blocking the formation of angtiotensin II, which results in vasodilation and decreased aldosterone secretion?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
diuretics<br />
ACE inhibitors<br />
Beta blockers<br />
calcium channel blockers<br />
anabolic steroids<br />
Question 19. Question : (TCO2) Which of the following categories would an individual with a blood pressure of<br />
145/95 be placed in?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
normal<br />
high normal<br />
prehypertension<br />
stage 1 hypertension<br />
stage 2 hypertension
Question 20. Question : (TCO2) Which of the following effectors would NOT be activated as described below in<br />
response to hypovolemic shock?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
Adrenal cortex releases aldosterone<br />
kidneys conserve salt and water<br />
heart rate increases<br />
systemic arterioles vasodilate<br />
heart contractility increases<br />
Question 21. Question : (TCO2) Which of the following blood vessels have high pulsing blood pressure?<br />
o<br />
o<br />
o<br />
o<br />
o<br />
Carotid artery<br />
internal jugular vein<br />
median cubital vein<br />
inferior vena cava<br />
none of the above<br />
Question 22. Question : (TCO2) During fetal development, the blood from the pulmonary veins are shunted into<br />
the pulmonary arteries by the<br />
o<br />
o<br />
o<br />
o<br />
o<br />
ductus arteriousus<br />
foramen ovale<br />
ductus venosus<br />
placenta<br />
ligamentum arteriosum<br />
Question 23. Question : (TCO2) Most capillaries throughout the body are<br />
o<br />
o<br />
o<br />
o<br />
o<br />
fenestrated capillaries<br />
sinusoids<br />
portal systems<br />
vasoconstrictory throughputs<br />
continuous<br />
Question 24. Question : (TCO2) Capillaries are also referred to as<br />
o<br />
o<br />
o<br />
o<br />
o<br />
exchange vessels<br />
vasoconstrictors<br />
vasodilators<br />
pressure reservoirs<br />
distributing vessels<br />
Question 25. Question : (TCO2) The volume of blood that circulates through the systemic blood vessels in one<br />
minute is called<br />
o<br />
o<br />
o<br />
o<br />
stroke volume<br />
tidal volume<br />
cardiac output<br />
cardiac reserve
o<br />
total peripheral resistance<br />
Question 26. Question : (TCO3) What is the pulse pressure of a person that has a systolic pressure of 150 mm<br />
Hg with a diastolic pressure of 90 mm Hg?<br />
Question 27. Question : (TCO3) Determine the mean arterial pressure for a patient with an average systolic<br />
pressure of 120 mm Hg with a mean diastolic pressure of 60 mm Hg:<br />
Question 28. Question : (TCO3) What is the resting cardiac output (in liters) of an athlete with a stroke volume<br />
of 75 ml and a resting heart rate of 60 beats/minute?<br />
Question 29. Question : (TCO3) The same athlete during exercise has a heart rate of 180 beats/minute with an<br />
increase of stroke volume to 125 ml. What is their cardiac output during exercise?<br />
Question 30. Question : (TCO3) What is the cardiac cycle for a person with a resting heart rate of 80 beats per<br />
minute?<br />
Question 31. Question : (TCO3) What is the name of the blood vessel that supplies the face and head (except<br />
the brain) with oxygenated blood?<br />
Question 32. Question : (TCO3) What is the name of the blood vessel that is the distal extension of the external<br />
iliac artery as it enters the leg?<br />
Question 33. Question : (TCO3) What is the name of the blood vessel that drains deoxygenated blood from the<br />
medial aspect of the forearm?<br />
Question 34. Question : (TCO3) What is the name of the vein that is found behind the kneecap on the posterior<br />
surface of the leg?<br />
Question 35. Question : (TCO3) What is the name of this blood vessel that is highlighted?<br />
Question 36. Question : (TCO3) List and briefly describe the three mechanisms used to reduce blood loss from<br />
a damaged blood vessel.<br />
Question 37. Question : (TCO1) Define arrhythmia and discuss different categories of arrhythmias.<br />
Question 38. Question : (TCO2) What is a portal vein? Describe the hepatic portal circulation and its functional<br />
significance
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> Week 1 iLab<br />
Exercise 27: Heart Structure and Function<br />
Complete the following illustrations and post it in the Week1 Dropbox.<br />
.jpg”><br />
.jpg”><br />
1. 2. 3.<br />
4. 5. 6.<br />
7. 8. 9.<br />
10. 11. 12.<br />
13. 14. 15.<br />
.jpg”><br />
.jpg”><br />
1. 2. 3.<br />
4. 5. 6.<br />
7. 8. 9.<br />
10. 11. 12.<br />
13. 14. 15.<br />
16. 17. 18.<br />
19. 20. 21.<br />
.jpg”><br />
1. 2. 3.<br />
4. 5. 6.<br />
7. 8. 9.<br />
10. 11. 12.<br />
13. 14. 15.<br />
16.<br />
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> Week 2 iLab<br />
Bios 225n Week 2 Lab Exercise<br />
Review of the Arteries<br />
.jpg”><br />
1. 2. 3.
4. 5. 6.<br />
7. 8. 9.<br />
10. 11. 12.<br />
13. 14. 15.<br />
16. 17. 18.<br />
19. 20. 21.<br />
22. 23. 24.<br />
25. 26. 27.<br />
28. 29. 30.<br />
31. 32. 33.<br />
34. 35. 36<br />
37.<br />
Review of the Veins<br />
.jpg”><br />
1. 2. 3.<br />
4. 5. 6.<br />
7. 8. 9.<br />
10. 11. 12.<br />
13. 14. 15.<br />
16. 17. 18.<br />
19. 20. 21.<br />
22. 23. 24.<br />
25. 26. 27.<br />
28. 29. 30.<br />
31. 32.<br />
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> Week 3 iLab<br />
Exercises Review of the Major Veins of the Thorax, Abdomen, and Pelvis<br />
1. 2. 3.4. 5. 6.7. 8. 9.10. 11. 12.13. 14. 15.16. 17. 18.19. 20.<br />
Review of Major Arteries of the Lower Limb1. 2. 3.4. 5. 6.7. 8. 9.<br />
Review of Major Veins of the Lower Limb<br />
1. 2. 3.4. 5. 6.7. 8. 9.10. 11.<br />
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> Week 5 iLab<br />
Lymphatic System & Disease Resistance<br />
1.Describe lymphatic system functions.
.jpg” alt=”LymphaticVessels2″>2. Locate each of the following lymphatic vessels:<br />
right lymphatic duct, thoracic (left lymphatic) duct,<br />
.gif”>.gif”>.gif”>right and left subclavian veins, and cisterna chyli.<br />
a<br />
b.<br />
c.<br />
d.<br />
.gif”><br />
.jpg” alt=”BloodLymphMovement”><br />
e. Determine the direction of blood and lymph movement between arterioles, blood and lymph capillaries, and venules.<br />
f. Describe the lymphatic system role with regard to lipids and lipid-soluble vitamins.<br />
3. What are the thymus gland functions?<br />
4. Identify each of the following in a lymph node: afferent lymphatic vessels and efferent vessels.<br />
.jpg” alt=”LymphNode”> a.<br />
.gif”>.gif”>b.<br />
c. What is the function of the macrophages within the lymph nodes?<br />
d. Identify spleen functions..jpg” alt=”Spleen”><br />
.jpg” alt=”Cytolysis2″><br />
5. T Lymphocytes:Some activated cytotoxic T cells produce perforin. What is the function of perforin?<br />
.jpg” alt=”Lymphotoxin”><br />
6. Some activated cytotoxic T cells produce Lymphotoxin. What is the function of lymphotoxin?<br />
.jpg” alt=”Antibodies”>7. Activated B Lymphocytes are transformed into plasma cells that produce antibodies. Name<br />
five ways antibodies can destroy foreign cells and substances.<br />
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> Week 6 iLab<br />
Acute respiratory disorder<br />
Acute respiratory disorder<br />
<strong>BIOS</strong> <strong>255n</strong> <strong>DeVry</strong> Final Exam<br />
Question #1. Describe the feedback mechanism involved in erythropoiesis.<br />
Question #2. Describe the cardiac cycle (include conduction, contraction, heart sounds and EKG information).<br />
Question #3. Describe the factors that increase blood pressure (negative feedback involved in blood pressure<br />
regulation).
Question #4. Describe the responses involved in non-specific immunity.<br />
Question #5. Describe cell-mediated immunity (antigen presentation, antigen recognition, activation and cellular<br />
response). Include both CD8 and CD4 T cells.<br />
Question #6. Describe antibody-mediated immunity (antigen presentation, antigen recognition, activation and<br />
cellular response).<br />
Question #7. Describe the events, pressures and muscles involved in inhalation and exhalation.<br />
Question #8. Describe how breathing is regulated through the negative feedback control of PCO2, PO2 and pH.