BIOL 121 CHAPTER 21 THE CARDIOVASCULAR SYSTEM THE HEART | GRADED A

BIOL 121 CHAPTER 21 THE CARDIOVASCULAR SYSTEM THE HEART Human Anatomy, 7e (Martini/Timmons/Tallitsch) Chapter 21 The Cardiovascular System: The Heart 1) The ability of the blood to supply oxygen and remove carbon dioxide from the tissues depends upon A) the diameter of the capillaries. B) the number of white blood cells in the circulation. C) the ability of the blood to remain in constant motion. D) the rate at which platelets are manufactured. E) the osmotic balance, as controlled by the kidneys. 2) Blood that is transported to and from all of the tissues of the body with the exception of the lungs is in the A) arterial circuit. B) pulmonary circuit. C) systemic circuit. D) portal circuit. E) venous circuit. 3) Blood vessels traveling away from the heart are A) arterioles. B) venules. C) capillaries. D) arteries. E) All of the answers are correct. 4) The heart has the unique ability to change its workload. On average the heart can pump between ________ and ________ liters of blood per minute. A) 2; 20 B) 1; 3 C) 10; 20 D) 5; 50 E) 5; 30 5) The serous membrane lining the pericardial cavity is the A) pleura. B) mediastinum. C) pericardium. D) myocardium. E) endocardium. 6) The visceral pericardium is also called the A) pericardial cavity. B) parietal pericardium. C) epicardium. D) pericardial sac. E) fibrous pericardium. 7) The reinforcing layer of the pericardium is the ________ layer. A) visceral B) parietal C) sutural D) fibrous E) epicardial 8) The tough structure that surrounds the heart and helps reinforce and maintain position of the heart is the A) mediastinum. B) pericardial sac. C) pleural cavity. D) aorta. E) epicardium. 9) The heart wall is composed of ________ layers of tissues A) 1 B) 2 C) 3 D) 4 E) 5 10) The innermost layer of the heart wall is the A) parietal and visceral layers of the epicardium. B) endocardium C) myocardium. D) fibrous pericardium. E) connective tissue. 11) Cardiac muscle differs from other muscle tissue in A) no ways; it is not unusual. B) having striations. C) having fibers connected to one another at intercalated discs. D) having fewer mitochondria. E) having larger sized fibers than other striated muscles.