Study Guide 15

Study Guide 15 - Chapter 15 Cardiovascular System Study...

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Chapter 15: Cardiovascular System Study Guide Nam Revision 2 OVERVIEW This chapter deals with the system that transports blood to and from cells-the cardiovascular system. It identifies the major organs of the cardiovascular system and explains the function of each organ (objective 1). In this chapter the location, structure, and function of the parts of the heart and the major types of blood vessels are discussed (objectives 2 and 5). It explains the pulmonary, systemic, and coronary circuits of the cardiovascular system and the major vessels in each circuit (objectives 3, 8, and 9). This chapter discusses the cardiac cycle and its control (objective 4). In addition, it describes how blood pressure is created and controlled, and the mechanism that aids in the return of venous blood to the heart (objectives 6 and 7). Study of the cardiovascular system is essential for understanding how each part of the body is supplied with the materials it needs to sustain life. STUDY ACTIVITIES I. Aids to Understanding Words (Please refer to inside and back covers.) Knowing the meanings of these roots will help in identification of many different topics in this chapter. Define the following word parts. angio- ( vessel ) brady- ( slow ) diastol- (dilation ) edem- ( swelling ) myo- ( muscle) papill- ( nipple ) phleb- ( vein ) scler- ( hard ) syn- ( together ) systol- ( contraction ) tachy ( rapid ) II. Introduction Quicklink : Cardiovascular System {This is a hyperlink which will download a short animation. Right-click the link and select “Open Hyperlink” or use Control + click to open it. Blood is carried to the heart in vessels called (veins ) , and away from the heart in vessels called ( arteries ). The vessels diminish in size as they branch, forming (arterioles ), which ultimately form microscopic vessels called ( cappilaries beds ) through which gas, nutrient, and waste exchange occurs. The microscopic vessels collect into ( capillaries ) finally form the (venules ) which lead back to the heart. III. Structure of the Heart (See : Interactive Physiology CD- Cardiovascular System Topics – Anatomy Review: The Heart. A. Size, function, and location of the heart 1. Blood is pumped into two circuits in the cardiovascular system. The ( pulmonary ) circuit on the right side of the heart receives blood from the superior and inferior vena cavae and carries it to
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the lungs to ( the heart ) . It returns to the left side of the heart and is pumped through the to the rest of the body in the ( systemic ) circuit. 2. The heart is found within the thoracic cavity in the region called the ( mediastinum ) It is bounded laterally by the lungs ) , anteriorly by ( sternum ) , and posteriorly by ( vertebral column ) B. Coverings of the Heart The ( pericardium ) is the membrane which covers the outer surface of the heart. The ( fibrous pericardium ) lines the pericardial sac, and is surrounded by a tough ( protective sac ) . The space between the two membrane layers is called the
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This note was uploaded on 06/26/2011 for the course A & P 221 taught by Professor Lankow during the Spring '11 term at Mayville.

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Study Guide 15 - Chapter 15 Cardiovascular System Study...

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