Ch.13 Quizzes Flashcards by Cole Powledge

Transportation functions of the circulatory system include ____.

Carrying oxygen and carbon dioxide

Carrying leukocytes

Carrying absorbed products of digestion

Carrying metabolic waste

All of the choices are correct

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How much blood does the average-sized adult have?

7 liters
4 liters
5 liters
2 liters

5 liters

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The development of ____ would be inhibited if the actions of granulocyte colony-stimulating factor were blocked.

Neutrophils

Thrombocytes

Erythrocytes

lymphocytes

neutrophils

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An elite marathon runner would likely benefit from increased oxygen carrying capacity in the blood from the use of ____, which would serve to ____.

Erythropoietin; increase red blood cell formation

Granulocyte colony-stimulating factor;
erythrocyte production

Thrombopoietin; increase megakaryocyte production

Hepcidin; increase leukopoiesis

Erythropoietin; increase red blood cell formation

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A patient has a large portion of his stomach removed during a weight reduction surgery. Following this procedure, he experiences fatigue and is short of breath upon exertion. His surgery most likely resulted in ____.

Iron-deficiency anemia

Leukemia

Pernicious anemia

Aplastic anemia

Pernicious anemia

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What is the enzyme that converts soluble fibrinogen to insoluble fibrin?

Plasmin

Thrombin

Prothrombin

thromboplastin

Thrombin

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The prostaglandin, thromboxane A2, stimulates ____.

Platelet repelling

Platelet aggregation

Vasoconstriction

Vasodilation

Platelet aggregation

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What type of antigens are present in Type O blood?

A only

B only

Both A and B

Neither A nor B

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The most abundant leukocytes in the blood are the ____.

Neutrophils

Monocytes

Basophils

eosinophils

Neutrophils

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Erythroblastosis fetalis occurs when _____.

The mother has Rh- blood and the fetus has Rh+ blood

The mother has type AB blood and the fetus has type O blood

The mother has Rh+ blood and the fetus has Rh- blood

The mother has blood type A and the fetus has blood type O

The mother has Rh- blood and the fetus has Rh+ blood

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The ____ of the heart are involved with ____.

Left side; circulating blood high in carbon dioxide and low in oxygen

Atria; receiving deoxygenated blood

Atria, ejecting blood from the heart

Ventricles; moving blood into major arteries

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In the fetus, blood can flow from the right atrium to the left atrium through the ____.

Ductus arteriosus

Tricuspid valve

Ductus venosus

Foramen ovale

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What causes the semilunar valves to close?

Higher pressure in the aorta and pulmonary trunk than in the ventricles

Higher pressure in the atria than in the ventricles

Higher pressure in the ventricles than aorta and pulmonary trunk

Higher pressure in the ventricles than in the atria

Higher pressure in the aorta and pulmonary trunk than in the ventricles

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Cardiac ____ channels are called hyperpolarization cyclic nucleotide (HCN) channels because they open in response to hyperpolarization.

Purkinje

Atrial

Pacemaker

ventricular

Pacemaker

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The production and conduction of action potentials in the heart produces a recordable tracing of the electrical activity of the heart called a(n) ____.

Depolarization

EMG

ECG

Heart scan

ECG

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Most of the circulating blood can be found in ____.

Arteries

Veins

Capillaries

arterioles

Veins

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Within the blood vessels, valves are found in the ____.

Capillaries

Arteries

Arterioles

veins

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Which type of an AV node block occurs when no atrial waves can pass through the AV node?

Third-degree

Fourth-degree

Second-degree

first-degree

Third-degree

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In order to be effective against high cholesterol, statins must ____.

Inhibit HMG-coenzyme A reductase

Stimulate proconvertin

Inhibit streptokinase

All of the choices are correct

Inhibit HMG-coenzyme A reductase

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Which of the following is a difference between veins and lymphatic vessels?

Interstitial fluid only moves into lymphatic vessels

Only veins contain valves

Only fluid in veins moves by waves of peristaltic contraction

Veins serve as a reservoir for the majority of blood in circulation

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Damage to tissues stimulates the activation of the ________ pathway.

complement

hemophilic

extrinsic

intrinsic

extrinsic

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Both the intrinsic and extrinsic clotting pathways activate factors that ________.

convert prothrombin to thrombin

convert fibrinogen to fibrin

convert plasminogen to plasmin

None of the choices are correct.

convert prothrombin to thrombin

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Aspirin inhibits blood clotting by directly preventing ________.

thrombin formation

fibrin formation

clot retraction

platelet plug formation

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The major plasma protein is ________.

alpha globulin

albumin

beta globulin

fibrinogen

albumin

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What ion is necessary for the clotting process? K+ Mg2+ Ca2+ Na+

Ca2+

When the wrong blood type is given to a patient, the antibodies in the patient's blood react with the antigens on the surface of the transfused blood causing a reaction called ________. agglutination neutralization coagulation precipitation

agglutination

Heart murmurs may be caused by ________. This causes valves to be less compliant, creating difficulty for blood to move from one chamber to another. regurgitation septal defects fibrillation stenosis

stenosis

Systole refers to the ________ of the ventricles, when pressure is ________. blood flow; lowest filling; highest relaxation; lowest contraction; highest

contraction; highest

The ________ conducts impulses from the AV node to the bundle branches, which lead to the Purkinje fibers. ventricular septum AV valve AV bundle SA node

AV bundle

Ca2+ release channels in the sarcoplasmic reticulum of the heart are opened by an increase in Ca2+ in the cytoplasm. This is referred to as _____. calcium-stimulated calcium release calcium-induced fibrillation calcium-induced repolarization calcium-stimulated depolarization

calcium-stimulated calcium release

Which of the following is NOT one of the three coats that comprise the walls of arteries and veins? Tunica media Tunica externa Tunica superficia Tunica interna

Tunica superficia

The first anatomical change associated with atherosclerosis is the appearance of ________. blood clots fibroblasts monocytes fatty streaks

fatty streaks

Which of the following is NOT a lymphatic organ? Thymus Spleen Lymph nodes Tonsils

Lymph nodes

Interstitial fluid is derived from ________. A. formed elements B. cells C. lymph D. plasma

Plasma

Which substance does NOT inhibit platelet aggregation? A. Prostacyclin B. CD39 C. von Willebrand factor D. Nitric oxide

von Willebrand factor

The presence of both type-B antibodies and type-B antigens are to agglutination as ________ is to ________. A. vascular damage; hemostasis B. hemostasis; clotting C. coagulation; hemophilia D. fibrin; fibrinogen

vascular damage; hemostasis

Decreased liver protein synthesis would cause the amount of ________ and ________ in the blood to be decreased. A. RBCs; WBCs B. thromboplastin; RBCs C. albumin; fibrinogen D. platelets; albumin

albumin; fibrinogen

Which of the following stimulates the formation of the platelet plug? A. von Willebrand factor B. ADP C. Thromboxane A2 D. All of the choices are correct.

All of the choices are correct

How does hepcidin function in iron homeostasis? A. Promotes production and insertion of ferroportin channels in enterocytes B. Promotes cellular storage of iron by removing ferroportin channels in enterocytes C. Increases production of transferrin D. Increases macrophage destruction of old red blood cells to release iron

Promotes cellular storage of iron by removing ferroportin channels in enterocytes

What is the role of serotonin in blood clotting? A. Causes vasoconstriction of blood vessels to slow loss of blood B. Causes platelets to become sticky C. Converts fibrinogen to fibrin D. Enhances the platelet release reaction

Causes vasoconstriction of blood vessels to slow loss of blood

John has blood type B. In an emergency, John could receive which of the following blood types? A. AB only B. B or O C. O only D. B only

B or O

Which part of the red blood cell can bind to oxygen? A. Cell cytoplasm B. Plasma membrane C. Heme part of hemoglobin D. Globin part of hemoglobin

Heme part of hemoglobin

The pathway of blood from the heart to the lungs and back to the heart is the ________ circulation. A. systemic B. pulmonary C. pleural D. cardiac

pulmonary

The pulmonary semilunar valve is to the right ventricle as the ________ is to the ________. A. right atrioventricular valve; left ventricle B. aortic valve; aorta C. tricuspid valve; right atrium D. mitral valve; pulmonary vein

tricuspid valve; right atrium

During isovolumetric ventricular relaxation ________. A. atrial pressure is less than ventricular pressure B. ventricular pressure is increasing C. the atrioventricular valves are open D. left ventricular pressure exceeds aortic pressure

atrial pressure is less than ventricular pressure

Bipolar limb lead three uses the ________. A. right arm and left leg B. left arm and right leg C. left and right arms D. left arm and left leg

left arm and left leg

Ventricular depolarization ________. A. appears as the P wave on an ECG B. appears as the T wave on an ECG C. occurs prior to atrial depolarization D. occurs after atrial depolarization

occurs after atrial depolarization

Varicose veins can be caused by ________. A. compression of abdominal aorta by a fetus during pregnancy B. stiffened venous valves C. excessive venous congestion D. All of the choices are correct.

excessive venous congestion

Choose the incorrect statement regarding blood vessels. A. Smooth muscle surrounds capillaries. B. Discontinuous capillaries create sinusoids. C. Arteries contain more muscle than veins. D. Valves are found in veins but not arteries.

Smooth muscle surrounds capillaries.

Damage to the AV node could cause ________ on and ECG. A. the absence of the T wave B. multiple P waves C. multiple T waves D. multiple Q waves

multiple P waves

Functions of the lymphatic system include all of the following EXCEPT ________. A. transport of interstitial fluid B. transport of absorbed peptides C. transport of absorbed fat D. providing immunological defense

transport of absorbed peptides

What is the major hematopoietic organ in the fetus? Spleen Liver Kidneys Red bone marrow

Liver

Iron is transported in the blood by the protein ________. fibrinogen albumin globin Transferrin

Transferrin

A normal hematocrit for women would be ________. 40% 52% 30% 48%

40%

What substances are needed to produce red blood cells? Vitamin B12 Folic acid Iron All of the choices are correct.

All of the choices are correct.

Which anticoagulant and its action is NOT correctly matched? Aspirin—inhibits prostaglandin production and platelet aggregation Citrate—combines with calcium to prevent its function with clotting factors Coumadin—inhibits tissue thromboplastin Heparin—inhibits action of thrombin

Coumadin—inhibits tissue thromboplastin

If the ________ were not properly functioning, congestion in the venous system would be an expected sign. pulmonary semilunar valve tricuspid valve bicuspid valve mitral valve

tricuspid valve

The P wave of an ECG represents ________. ventricular depolarization atrial depolarization ventricular repolarization atrial repolarization

atrial depolarization

Following musculoskeletal surgery on the lower extremity, oftentimes a return to ambulation (walking) is prescribed as soon as possible to reduce edema. Why? Increases muscular hypertrophy similar as with most exercise Promotes fluid return via alternating pressures created by muscular contractions Increases mechanical stimulation to fibroblasts and tissue repair Promotes the inflammatory response and thus speeds healing

Promotes fluid return via alternating pressures created by muscular contractions

The lymphatic system can help cancer cells ________ since cancer cells may enter, circulate, and later exit porous lymphatic capillaries. die off mutate revert to normal cells metastasize

metastasize

A normal red blood cell count is in the range of ________ /mm3. a. 4.23–5.98 million b. 4,300–10,800 c. 130,000–400,000 d. 120–220

4.23–5.98 million

Blood globulins include which of the following types? Alpha globulins Beta globulins Gamma globulins All of the choices are correct

All of the choices are correct

Polycythemia would be induced by _______ in the blood. Decreased carbon dioxide Increased oxygen Increased infection Decreased oxygen

Decreased oxygen

What structures keep the AV valves from everting under high ventricular pressure? Semilunar valves Papillary muscles and chordae tendineae Interventricular and interatrial septa Annuli fibrosis

Papillary muscles and chordae tendineae

Medications that are used to treat arrhythmias may use which of the following mechanisms? Block β-adrenergic receptors. Block fast Na+ channels. Block slow Ca2+ channels. All of the choices are correct.

All of the choices are correct.

All blood vessels are lined with _________. Elastin Endothelial cells Smooth muscle The tunica externa

Endothelial cells

Ch.13 Quizzes Flashcards

(67 cards)