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25 Cards in this Set
- Front
- Back
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All the following apply to the heart except: |
D) it is roughly the size of the person's head
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The pericardium is the double sac membrane that:
A) encloses the heart B) line the aorta C) makes up the heart valves D) is found only in the capillaries |
A) encloses the heart
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Most of the cardiac muscle of the heart is found in the:
A) endocardium B) epicardium C) myocardium D) pericardium |
C) myocardium
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The interventricular septum and the intra-atrial septum separate the:
A) chambers of the heart B) chambers of the lungs C) aorta and pulmonary artery D) bicuspid and tricuspid valves |
A) chambers of the heart
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Blood returning to the heart from the body organs enters the:
A) left atrium through the aorta B) right atrium through the vena cava C) left ventricle by the pulmonary artery D) right ventricle by the pulmonary vein |
B) right atrium through the vena cava
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The systemic circuit of the cardiovascular system extends:
A) from the heart to the lungs B) from heart to the coronary arteries C) from the heart to the body's organs and tissues D) from the gastrointestinal tract to the liver |
C) from the heart to the body's organs and tissues
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The only vein in the body that transports oxygen-rich blood is the:
A) coronary vein B) hepatic portal vein C) pulmonary vein D) aortic vein |
C) pulmonary vein
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All arteries of the body flow:
A) to the liver B) to the brain C) away from the lungs D) away from the heart |
D) away from the heart
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The semilunar valves prevent blood from flowing backwards:
A) into the atria B) into the ventricles C) into the brain D) into the liver |
B) into the ventricles
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All the following apply to the bicuspid valve except:
A) it is also called the mitral valve B) it is a semilunar valve C) it is found on the left side of the heart D) it prevents blood from backing into the left atrium |
B) it is a semilunar valve
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The arteries supplying blood to the tissue of the heart are the:
A) renal arteries B) myocardial arteries C) coronary arteries D) vena cavae |
C) coronary arteries
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A blockage within the heart arteries caused by the death of heart muscle cells is known as:
A) an embolism B) an infarct C) an abscess D) a trachanter |
B) infarct
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Intercalated disks are found:
A) between the right side and right side of the heart B) between the flaps of the tricuspid valve C) where the aorta joins the pulmonary artery D) between the cardiac muscle cells |
D) between the cardiac muscle cells
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Which of the following applies to the sinoatrial node?
A) it is a mass of nerve cells B) it produces important enzymes C) it generates autorhythmic impulses to contract the heart D) it contains both bicuspid and tricuspid valves |
C) it generates autorhythmic impulses to contract the heart
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The bundle of His:
A) is found in the aorta B) is a group of Purkinje fibers C) prevents the mitral valve from flapping backward D) is a group of arteries that supply the heart |
B) is a group of Purkinje fibers
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Nervous control of the heart can be exerted by:
A) nerves from the thoracic region of the spinal column B) the second and third cranial nerves C) by fibers of the sensory somatic system D) by fibers of the autonomic nervous system |
D by fibers of the autonomic nervous system
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The condition called arrhythmia is characterized by:
A) rapid heart contraction B) irregular heart rhythms C) mitral valve prolapse D) semilunar valve dysfunction |
B) irregular heart rhythms
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The terms systole and diastole refer to:
A) sounds from the heart B) the major artery and vein from and to the heart C) heart contractions and relaxations D) rates of heart pulse |
C) heart contractions and relaxations
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Which of the following represents the flow of blood from the heart to the body organs and back to the heart?
A) venules to capillaries to veins to arteries B) arteries to capillaries to veins C) capillaries to arterioles to arteries to veins D) veins to arteries to capillaries to arterioles |
B) arteries to capillaries to veins
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The term vasoconstriction refers to:
A) increasing the size of the lumen of the blood vessel B) decreasing the size of the lumen of the blood vessel C) delivering oxygen and nutrients to the body tissues D) delivering waste products to the kidney for excretion |
B) decreasing the size of the lumen of the blood vessel
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The blood pressure is measured by an instrument known as a:
A) electrocardiogram B) electroencephalograph C) sphygmomanometer D) CAT scan machine |
C) sphygmomanometer
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Blood flowing through a vein tends to:
A) pulse B) flow smoothly C) carry oxygen to the body cells D) flow at a faster rate than in the artery |
B) flow smoothly
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The pulse rate of a normal individual averages about:
A) 10 beats per minute B) 40 beats per minute C) 50 beats per minute D) 70 beats per minute |
D) 70 beats per minute
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All the following have the ability to regulate blood flow in the body except:
A) antidiuretic hormone B) epinephrine and norepinephrine C) chemoreceptors D) enzymes from the salivary glands |
D) enzymes from the salivary glands
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The hepatic portal vein transports blood:
A) from the heart to the liver B) from the liver to the spleen C) from the gastrointsestinal tract to the liver D) from the liver to the gastrointerstinal tract |
C) from the gastrointestinal tract to the liver
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