Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart2h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

17. The Blood

Erythrocytes: Hemoglobin

Anatomy & Physiology

17. The Blood

Erythrocytes: Hemoglobin

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How can poor nutrition lead to anemia?

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Anemia is defined as:

a. a decreased oxygen-carrying capacity of the blood.

b. a decreased iron content of the blood.

c. decreased bone marrow function.

d. abnormalities in hemoglobin.

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Predict how abnormal hemoglobin proteins that contain only two iron ions, instead of four, would affect homeostasis.

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Mr. Jackson presents to the emergency room with a minor wound that has bled for several days. An examination of his medical history reveals that Mr. Jackson has hemophilia A, which is caused by a deficiency of factor VIII. Your co-worker suggests that you give Mr. Jackson some platelets to stop the bleeding. Will this help your patient? Why or why not?

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Alan Forsythe, a middle-aged college professor from Boston, is in the Swiss Alps studying astronomy during his sabbatical leave. He has been there for two days and plans to stay the entire year. However, he notices that he is short of breath when he walks up steps and tires easily with any physical activity. His symptoms gradually disappear, and he feels fine after less than a month. Upon returning to the United States, he has a complete physical exam and is told that his erythrocyte count is higher than normal.a. Attempt to explain this finding.b. Will his RBC count remain at this higher-than-normal level? Why or why not?

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Brittany, a healthy young woman, had a battery of tests during a physical for a new job. Her RBC count was at the higher end of the normal range at that time, but four weeks later it was substantially elevated beyond that. When asked if any circumstances had changed in her life, she admitted to taking up smoking. How might her new habit explain her higher RBC count?

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Multiple ChoiceMore than one choice may apply.If an Rh ⁻ mother becomes pregnant, when can hemolytic disease of the newborn not possibly occur in the child?a. If the child is Rh ⁻b. If the child is Rh⁺ c. If the father is Rh⁺ d. If the father is Rh ⁻

Open Question

A woman comes to the clinic complaining of fatigue, shortness of breath, and chills. Blood tests show anemia, and a bleeding ulcer is diagnosed. What type of anemia is this?

Open Question

Multiple ChoiceMore than one choice may apply.In a person with sickle cell anemia, sickling of RBCs can be induced bya. blood loss.b. vigorous exercise.c. stress.d. fever.

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