Page 104 - Alaska A & P Primer

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THE CARDIOVASCULAR SYSTEM: BLOOD
STUDY QUESTIONS
1. Following a motor vehicle accident, a patient is rushed to the emergency depart- ment with multiple traumatic injuries, causing severe bleeding. The patient’s condition is critical, and there is no time for determining his blood type.
2. The first step in hemostasis is ________.
3. Aging and damaged erythrocytes are removed from the circulation by _____.
4. A patient has been suffering for 2 months with a chronic, watery diarrhea. A blood test is likely to reveal ________.
5. Thrombocytes are more accurately called ________.
6. Explain why administration of a thrombolytic agent is a first intervention for someone who has suffered a thrombotic stroke.
A single drop of blood contains millions of red blood cells, white blood cells, and platelets. One of each type is shown here, isolated from a scanning electron micrograph.
Single-celled organisms do not need blood. They obtain nutrients directly from and ex- crete wastes directly into their environment. The human organism cannot do that. Our large, complex bodies need blood to deliver nutrients to and remove wastes from our tril- lions of cells. The heart pumps blood throughout the body in a network of blood vessels. Together, these three components—blood, heart, and vessels—makes up the cardiovascu- lar system. This chapter focuses on the medium of transport: blood.
ECTION 18
SECTION OBJECTIVES
1. Identify the primary functions of blood, its fluid and cellular components, and its physical characteristics
2. Identify the most important proteins and other solutes present in blood plasma
3. Describe the formation of the formed element components of blood
4. Discuss the structure and function of red blood cells and hemoglobin
5. Classify and characterize white blood cells
6. Describe the structure of platelets and explain the process of hemostasis
7. Explain the significance of AB and Rh blood groups in blood transfusions
8. Discuss a variety of blood disorders
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State of Alaska EMS Education Primer - 2016
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