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 | |
Which of the following body systems does not interact closely with the circulatory system in maintaining homeostasis? (538) |
| | A) | integumentary system |
| | B) | respiratory system |
| | C) | digestive system |
| | D) | reproductive system |
| | E) | endocrine system |
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2 | |
All exchanges of fluid, nutrients, and wastes between the blood and tissues occur across the walls of (540) |
| | A) | capillaries |
| | B) | lymph ductules |
| | C) | leukocytes |
| | D) | the heart |
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3 | |
Which of the following characteristics is not descriptive of blood? (540) |
| | A) | pH of 7.35 to 7.45 |
| | B) | viscosity of 2.5 to 3.0 |
| | C) | specialized connective tissue |
| | D) | temperature within the thorax of about 38 C (100.4 F) |
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4 | |
A normal hematocrit from a healthy adult would be (540) |
| | A) | 25% |
| | B) | 35% |
| | C) | 45% |
| | D) | 55% |
| | E) | 65% |
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5 | |
Which of the following statements concerning erythrocytes is false? (541) |
| | A) | Each mature erythrocyte contains a single, centrally positioned nucleus. |
| | B) | Each contains approximately 280 million hemoglobin molecules. |
| | C) | They are produced in the bone marrow and are destroyed by phagocytic cells in the liver, spleen, and bone marrow. |
| | D) | They produce ATP through anaerobic respiration. |
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6 | |
The most abundant type of leukocyte is the (542) |
| | A) | neutrophil |
| | B) | lymphocyte |
| | C) | monocyte |
| | D) | eosinophil |
| | E) | basophil |
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7 | |
Which of the following statements concerning thrombocytes is false? (542) |
| | A) | They are capable of ameboid movement. |
| | B) | They are fragmented megakaryocytes. |
| | C) | They have a life span of about 120 days |
| | D) | They are destroyed in the spleen and liver. |
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8 | |
The movement of leukocytes through capillary walls is called (542) |
| | A) | leukopoiesis |
| | B) | erythropoiesis |
| | C) | hematopoiesis |
| | D) | diapedesis |
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9 | |
The antibodies of immunity produced by lymphocytes are the (545) |
| | A) | fibrinogens |
| | B) | alpha globulins |
| | C) | beta globulins |
| | D) | albumins |
| | E) | gamma globulins |
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10 | |
When fibrinogen is removed from the plasma of blood, the remaining product is known as (545) |
| | A) | serum |
| | B) | fibrin |
| | C) | globulin |
| | D) | hematocrit |
| | E) | hemoglobin |
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11 | |
Which cavity/area grouping best describes the location of the heart? (545) |
| | A) | endocardial cavity, pericardial cavity, and thoracic cavity |
| | B) | endocardial cavity, pericardial cavity, and thoracic cavity |
| | C) | pericardial cavity, mediastinum, and thoracic cavity |
| | D) | endocardial cavity, pericardial cavity, and mediastinum |
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12 | |
The thickest layer of the heart is the (546) |
| | A) | endocardium |
| | B) | myocardium |
| | C) | epicardium |
| | D) | pericardium |
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13 | |
Which of the following statements concerning the right atrium is false? (550) |
| | A) | It receives venous blood through three openings. |
| | B) | The SA node is contained within the posterior wall. |
| | C) | When contracted, it empties through the right atrioventricular valve into the right ventricle. |
| | D) | Its wall consists of three layers. |
| | E) | None of the above apply. |
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14 | |
The strong tendinous cords called chordae tendineae (550) |
| | A) | support the pericardium surrounding the heart |
| | B) | strengthen the interventricular septum |
| | C) | prevent the atrioventricular valves from everting |
| | D) | form the conduction system of the heart |
| | E) | form the fibrous skeleton of the heart |
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15 | |
Which of the following statements concerning the right ventricle is false? (550) |
| | A) | It contains papillary muscles. |
| | B) | It pumps only deoxygenated blood. |
| | C) | Blood enters the cavity through the right atrioventricular valve and exits through the pulmonary valve. |
| | D) | It has a thicker myocardial layer than the left ventricle. |
| | E) | It is lined with trabeculae carneae of the endocardium. |
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16 | |
The left atrioventricular valve is on the same side of the heart as the (550) |
| | A) | superior vena cava |
| | B) | tricuspid valve |
| | C) | pulmonary valve |
| | D) | opening of the coronary sinus |
| | E) | aortic valve |
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17 | |
Which of the following statements is true? (550) |
| | A) | Unlike the ventricles, the atria receive only oxygenated blood. |
| | B) | The volume capacity is smaller in the atria than in the ventricles. |
| | C) | The walls of the atria are thinner than ventricular walls. |
| | D) | Trabeculae carneae reinforce the walls of both the atria and the ventricles. |
| | E) | Both b and c are true. |
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18 | |
Which of the following structures are involved in pulmonary circulation? (550) |
| | A) | right ventricle, pulmonary trunk, and left atrium |
| | B) | superior vena cava, right atrium, and right ventricle |
| | C) | left ventricle, aorta, and inferior vena cava |
| | D) | right atrium, right ventricle, and left atrium |
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19 | |
A coronary thrombus (blood clot) of the right marginal artery of the heart would affect the flow of blood to the myocardium of the (552) |
| | A) | right atrium |
| | B) | left atrium |
| | C) | right atrium and right ventricle |
| | D) | left atrium and left ventricle |
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20 | |
The correct sequence of electrical impulses through the conduction system of the heart is the (552) |
| | A) | AV node, SA node, atrioventricular bundle, and conduction myofibers |
| | B) | SA node, atrioventricular bundle, AV node, and conduction myofibers |
| | C) | AV node, SA node, conduction myofibers, and atrioventricular bundle |
| | D) | SA node, AV node, atrioventricular bundle, and conduction myofibers |
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21 | |
The __________ is produced during atrial depolarization on the ECG. (553) |
| | A) | P wave |
| | B) | T wave |
| | C) | QRS wave |
| | D) | U wave |
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22 | |
AV valve closure produces (554) |
| | A) | the first heart sound (lub) |
| | B) | the second heart sound (dub) |
| | C) | no heart sounds |
| | D) | Korotkoff sounds |
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23 | |
The first heart sound (lub) immediately follows the occurrence of the (554) |
| | A) | P wave |
| | B) | QRS wave |
| | C) | T wave |
| | D) | U wave |
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24 | |
Heart murmurs are usually the result of defective (554) |
| | A) | coronary arteries |
| | B) | pacemaker activity |
| | C) | valves |
| | D) | electrical conduction fibers |
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25 | |
In doing a venipuncture to withdraw blood for analysis, the layers will be pierced in the following order: (555) |
| | A) | tunica superficialis, tunica media, and tunica intima |
| | B) | tunica externa, tunica media, and tunica interna |
| | C) | tunica externa, tunica muscularis, and tunica intima |
| | D) | tunica superficialis, tunica muscularis, and tunica interna |
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26 | |
All of the following terms refer to a type of capillary except (557) |
| | A) | fenestrated |
| | B) | thoroughfare channel |
| | C) | discontinuous |
| | D) | continuous |
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27 | |
Which of the following statements is true concerning veins? (558) |
| | A) | All veins transport deoxygenated blood. |
| | B) | The average pressure in the veins is comparable to that in the arteries. |
| | C) | All veins transport blood toward the heart. |
| | D) | Veins have thinner walls and larger lumina than do arteries. |
| | E) | Both c and d. |
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28 | |
Which of the following arteries does not branch from the aortic arch? (559) |
| | A) | brachiocephalic trunk |
| | B) | right subclavian artery |
| | C) | left common carotid artery |
| | D) | left subclavian artery |
| | E) | all branch from the aortic arch |
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29 | |
The convergence of arteries on the inferior side of the brain surrounding the pituitary gland forms the (561) |
| | A) | hypothalamo-hypophyseal system |
| | B) | hormonal feedback system |
| | C) | cerebral arterial circle |
| | D) | blood-brain barrier |
| | E) | portal system |
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30 | |
Headaches are usually caused by vascular pressure on the sensitive meninges covering the brain that are served by the (564) |
| | A) | internal carotid and basilar arteries |
| | B) | occipital and maxillary arteries |
| | C) | internal and external carptid arteries |
| | D) | vertebral and facial arteries |
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31 | |
Blood flows through the brachiocephalic trunk, the ______________, and then through the subclavian, brachial, and radial arteries to serve the muscles of the right hand. (565) |
| | A) | cubital artery |
| | B) | subscapular artery |
| | C) | humeral artery |
| | D) | axillary artery |
| | E) | right common carotid artery |
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32 | |
A person's blood pressure is generally taken with a cuff around the humerus, where constriction is applied to the (565) |
| | A) | subclavian artery |
| | B) | humeral artery |
| | C) | brachial artery |
| | D) | radial artery |
| | E) | median artery |
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33 | |
Which of the following vessels does not branch off the abdominal portion of the aorta? (566) |
| | A) | common hepatic artery |
| | B) | inferior phrenic artery |
| | C) | renal artery |
| | D) | celiac trunk |
| | E) | inferior mesenteric artery |
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34 | |
Blood flows through the external iliac, femoral, __________, anterior tibial, and dorsal pedal arteries to serve the dorsum of the foot. (568) |
| | A) | deep femoral artery |
| | B) | peroneal artery |
| | C) | patellar artery |
| | D) | popliteal artery |
| | E) | calcaneal artery |
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35 | |
Which of the following statements regarding the veins is false? (572) |
| | A) | They lack a smooth muscle layer (tunica media). |
| | B) | They transport blood toward the heart. |
| | C) | They are more numerous than arteries. |
| | D) | Most veins have valves. |
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36 | |
The internal jugular vein, the common carotid artery, and the vagus nerve are surrounded in the neck by the protective (574) |
| | A) | cervical sheath |
| | B) | vascular sheath |
| | C) | nuchal retinaculum |
| | D) | carotid sheath |
| | E) | nuchal sheath |
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37 | |
The three veins draining blood through the brachial region are the (575) |
| | A) | humeral, basilic, and cephalic veins |
| | B) | humeral, basilic, and brachial veins |
| | C) | brachial, basilic, and cephalic veins |
| | D) | brachial, humeral, and deep circumflex veins |
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38 | |
Which of the following veins does not drain blood into the inferior vena cava? (579) |
| | A) | azygos vein |
| | B) | hepatic portal vein |
| | C) | lumbar vein |
| | D) | renal vein |
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39 | |
Blood flows through the anterior tibial, popliteal, femoral, and external iliac veins and the inferior vena cava to return venous blood from the lower extremity to the heart. Which vessel is missing in the sequence? (576) |
| | A) | inferior mesenteric vein |
| | B) | hepatic portal vein |
| | C) | renal vein |
| | D) | common iliac vein |
| | E) | deep femoral vein |
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40 | |
Which of the following veins is not superficial? (575) |
| | A) | median cubital vein |
| | B) | basilic vein |
| | C) | cephalic vein |
| | D) | great saphenous vein |
| | E) | brachial vein |
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41 | |
In the most direct route from the left leg to the right arm of an adult, blood must pass through all of the following vessels except the (573) |
| | A) | left external iliac vein |
| | B) | brachiocephalic artery |
| | C) | inferior vena cava |
| | D) | pulmonary vein |
| | E) | hepatic portal vein |
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42 | |
The umbilical cord includes (580) |
| | A) | one umbilical vein and one umbilical artery |
| | B) | two umbilical veins and one umbilical artery |
| | C) | one umbilical vein and two umbilical arteries |
| | D) | two umbilical veins and two umbilical arteries |
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43 | |
Which of the following fetal structures contains the most oxygen-rich blood? (580) |
| | A) | left atrium |
| | B) | umbilical arteries |
| | C) | foramen ovale |
| | D) | ductus venosus |
| | E) | umbilical vein |
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44 | |
The first structure to close upon birth of the baby is the (581) |
| | A) | pulmonary trunk |
| | B) | ductus arteriosus |
| | C) | umbilical artery |
| | D) | foramen ovale |
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45 | |
Following the birth of the baby, the umbilical vein becomes the (582) |
| | A) | round ligament of the liver |
| | B) | ligamentum venosum |
| | C) | ligamentum arteriosum |
| | D) | umbilical ligament |
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46 | |
Which of the following is not a function of the lymphatic system? (582) |
| | A) | transport of interstitial fluid back to the blood |
| | B) | transport of absorbed fats from the intestine to the blood |
| | C) | immunological defense |
| | D) | filtration of metabolic waste |
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47 | |
The thoracic duct empties lymph directly into the (582) |
| | A) | axillary lymph nodes |
| | B) | cisterna chyli |
| | C) | left subclavian vein |
| | D) | right atrium |
| | E) | superior vena cava |
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48 | |
Which of the following is not a lymphoid organ? (584) |
| | A) | thymus |
| | B) | spleen |
| | C) | pancreas |
| | D) | tonsils |
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49 | |
The embryonic formation of the heart occurs primarily during (589) |
| | A) | days 20-30 |
| | B) | days 30-40 |
| | C) | weeks 8-9 |
| | D) | weeks 10-12 |
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2002 McGraw-Hill Higher Education