Please answer all questions. The numbers at the end of each question refer to the textbook page where the question topic is discussed.
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1 | |
There is an estimated 60,000 miles of vessels throughout the body of an adult. (538) |
| | A) | True |
| | B) | False |
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2 | |
Red blood cells, called leukocytes, transport respiratory gases attached to hemoglobin molecules. (541) |
| | A) | True |
| | B) | False |
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3 | |
A cubic millimeter of blood contains roughly 5.0 million erythrocytes and between 5,000 and 9,000 leukocytes. (541) |
| | A) | True |
| | B) | False |
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4 | |
Mature erythrocytes lack a nucleus and mitochondria and cannot mitotically divide. (541) |
| | A) | True |
| | B) | False |
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5 | |
Alpha and beta globulins are produced by lymphoid tissues and are antibodies of immunity. (545) |
| | A) | True |
| | B) | False |
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6 | |
The outer serous layer of the pericardium secretes pericardial fluid. (546) |
| | A) | True |
| | B) | False |
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7 | |
The endocardium of the heart is continuous with the endothelium of blood vessels. (547) |
| | A) | True |
| | B) | False |
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8 | |
Four pulmonary arteries carry blood from the heart to the lungs, whereas two branches of the pulmonary vein return the blood back to the heart. (550) |
| | A) | True |
| | B) | False |
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9 | |
The left ventricle has the greatest volume capacity because it pumps blood to the most distal parts of the body. (550) |
| | A) | True |
| | B) | False |
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10 | |
Systemic circulation includes all the blood flow within the body except the pulmonary circulation to the lungs and the coronary circulation to the heart. (550) |
| | A) | True |
| | B) | False |
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11 | |
All of the blood that flows through the coronary arteries enters the coronary sinus before draining into the right atrium. (550) |
| | A) | True |
| | B) | False |
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12 | |
In order for the SA node to depolarize, it must receive an autonomic impulse through the cardiac accelerator nerve. (552) |
| | A) | True |
| | B) | False |
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13 | |
Depolarization of the SA node causes systole and depolarization of the AV node causes diastole. (552) |
| | A) | True |
| | B) | False |
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14 | |
The sound of the left atrioventricular valve is best heard with a stethoscope placed at the second intercostal space, just to the left of the sternum. (554) |
| | A) | True |
| | B) | False |
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15 | |
The endothelium consists of a layer of elastic fibers, or elastin. (555) |
| | A) | True |
| | B) | False |
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16 | |
Fenestrated capillaries permit the selective diffusion characteristic of the blood-brain barrier. (557) |
| | A) | True |
| | B) | False |
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17 | |
The average pressure in veins is only 2 mm Hg; by contrast, the average arterial pressure is about 100 mm Hg. (558) |
| | A) | True |
| | B) | False |
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18 | |
The right and left coronary arteries are the only branches that arise from the ascending aorta. (559) |
| | A) | True |
| | B) | False |
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19 | |
The carotid sinus in the brain contains baroreceptors, which monitor blood pressure, and chemoreceptors, which respond to chemical changes in the blood. (561) |
| | A) | True |
| | B) | False |
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20 | |
Capillaries within the pituitary gland received both arterial and venous blood. This is known as the hepatic portal system. (579) |
| | A) | True |
| | B) | False |
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21 | |
The radial artery is an important site at which to record the blood pulse. (565) |
| | A) | True |
| | B) | False |
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22 | |
The superior mesenteric and inferior mesenteric arteries are the only unpaired vessels that arise from the abdominal portion of the aorta. (566) |
| | A) | True |
| | B) | False |
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23 | |
The femoral triangle is clinically important because it is a common area from which to withdraw blood. (568) |
| | A) | True |
| | B) | False |
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24 | |
The venous sinuses that drain blood from the brain are positioned between the dura mater and pia mater. (574) |
| | A) | True |
| | B) | False |
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25 | |
There is one brachiocephalic vein and two brachiocephalic arteries. (574) |
| | A) | True |
| | B) | False |
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26 | |
Blood drains from the deep cervical region through the hemiazygos vein. (576) |
| | A) | True |
| | B) | False |
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27 | |
The great saphenous vein is the longest vessel of the body. (579) |
| | A) | True |
| | B) | False |
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28 | |
The descending aorta has the largest diameter of any vessel in the body. (579) |
| | A) | True |
| | B) | False |
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29 | |
All of the blood draining from the stomach, pancreas, spleen, and small and large intestines must pass through the hepatic portal system prior to draining into the inferior vena cava. (579) |
| | A) | True |
| | B) | False |
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30 | |
The capillary exchange between the maternal and fetal circulation occurs within the placenta. (580) |
| | A) | True |
| | B) | False |
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31 | |
Since the fetal lungs are collapsed, most of the blood is shunted away from these organs and enters directly into systemic circulation. (580) |
| | A) | True |
| | B) | False |
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32 | |
The umbilical arteries of the fetus arise from the abdominal aorta. (582) |
| | A) | True |
| | B) | False |
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33 | |
The closure of the foramen ovale at birth is due to a rapid increase in cardiac pressure as the heartbeat quickens to adapt to extrauterine life. (581) |
| | A) | True |
| | B) | False |
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34 | |
Anemia is the accumulation, or retention, of tissue fluid. (592) |
| | A) | True |
| | B) | False |
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35 | |
Interstitial fluid and lymph have basically the same composition. (582) |
| | A) | True |
| | B) | False |
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36 | |
All lymph drainage eventually passes through the thoracic duct before entering the subclavian vein. (582) |
| | A) | True |
| | B) | False |
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37 | |
The development of the heart from cardiogenic mesoderm requires only about 7 days. (589) |
| | A) | True |
| | B) | False |
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38 | |
Congenital heart problems are most likely to develop during the transition from embryo to fetus at the eighth week. (589) |
| | A) | True |
| | B) | False |
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2002 McGraw-Hill Higher Education