Chapter 18- The Cardiovascular System-Heart Assignment - Chapter 18 The Cardiovascular System The Heart For this assignment please read the chapter and

Chapter 18- The Cardiovascular System-Heart Assignment -...

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Chapter 18 – The Cardiovascular System: The Heart For this assignment, please read the chapter and answer the questions below. Please type your answers in red or blue color. Please note that points may be deducted if answers are not submitted in these colors. Cardiovascular System: The cardiovascular system consists of the heart, and vessels, arteries, capillaries and veins. What is the function of this system? Transport nutrients, hormones, and oxygen throughout the body and removes metabolic waste Heart: The heart is a hollow, __ cone ____-shaped, muscular pump within the ___ thoracic ____ cavity. The average adult heart is ___ 14 ____ cm long and ____ 9 _____ cm wide. The heart lies in the ____ mediastinum _______ under the sternum; its apex extends to the __ 5th ___ intercostal space. Pericardium: It is made of a tough outer bag that surrounds a double-layered sac. This tough, outer layer is composed of dense connective tissue and is called the __ fibrous ____ pericardium. Double-layered sac. The innermost layer of this sac immediately surrounds the heart and is called the ______ visceral _________ pericardium (also called ___ epicardium ___). At the base of the heart, this inner layer folds back on itself to become the __ parietal ______ pericardium. Between the layers of this sac is a potential space called the ____ pericardial ___ cavity and it is filled with ___ serous ______ fluid. What is the function of this fluid? It acts as a lubricant and reduces friction during muscle movements Wall of the Heart The wall of the heart is composed of three distinct layers.The outermost layer, the ___

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