Lecture test 4

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Question #1

Which of the blood vessels below has the highest blood pressure?

A Arteries

B Veins

C Capillaries

Question #2

Blood vessels which shows only one wall layer known as the tunica intima to allow gas exchange.

A Arteries

B Capillaries

C Veins

Question #3

Blood vessels with large amounts of smooth muscle and elastic fibers.

A Arteries

B Capillaries

C Veins

Question #4

All the following are part of the cardiac conduction system except:

A the Purkinje fibers

B The Bundle of His

C the sinoatrial node

D the chordae tendineae

E the atrioventricular bundle

Question #5

The second heart sound “DUB” is produced when _____________________.

A Gas exchange occurs in the capillary beds of the lungs

B The semilunar valves close (pulmonary and aortic)

C The ventricles contract

D The atrioventricular valves close (tricuspid and bicuspid)

Question #6

The first heart sound “LUB” is produced when _______________________.

A Gas exchange occurs in the capillary beds of the lungs

B The atrioventricular valves close (tricuspid and bicuspid)

C The ventricles contract

D The semilunar valves close (pulmonary and aortic)

Question #7

If the aortic semilunar valve was blocked, where would blood accumulate?

A right ventricle

B lungs

C left atrium

D left ventricle

E right atrium

Question #8

What is considered the pacemaker of the heart?

A Purkinje fibers

B medulla oblongata

C the sinoatrial node

D the atrioventricular node

E atrioventricular bundle

Question #9

Which vessel of the heart receives blood during right ventricular systole?

A aorta

B superior vena cava

C pulmonary trunk

D pulmonary veins

Question #10

A hospital laboratory technician injects a dye into a vein in your right arm. What is the first chamber of the heart that the dye will reach?

A aorta

B left ventricle

C right ventricle

D left atrium

E right atrium

Question #11

What is the function of semilunar valves in veins?

A remove debris from blood

B prevent the backward flow of blood

C oxygenate the blood

D increase the rate of blood flow

E regulation of blood pressure

Question #12

Contraction of the left ventricle produces pressure to open the ______________.

A tricuspid valve

B mitral valve

C pulmonary semilunar valve

D pulmonary artery

E aortic semilunar valve

Question #13

What are the components of the cardiovascular system?

A arteries, veins and heart

B arteries and veins

C heart, blood and blood vessels

D veins, blood and heart

E capillaries, arteries, heart and veins

Question #14

Which of the following is NOT a function of the cardiovascular system?

A participate in temperature homeostasis

B transports cells of the immune system

C allow for the detection of stimuli from the external environment

D transport oxygen to tissues and remove waste materials

Question #15

The cardiac centers that control heart rate are located in the _________________.

A thoracic segments of the spinal cord

B medulla oblongata of the brain stem

C pituitary gland of the diencephalon

D cerebral cortex of the temporal lobe

Question #16

The tricuspid valve opens when blood flows from the left atrium to the left ventricle.

A True

B False

Question #17

During left ventricular systole, blood exits the heart to enter the _____________.

A aorta

B superios vena cava

C pulmonary vein

D pulmonary trunk

Question #18

The left ventricular wall of the heart is thicker than the right ventricular wall so that it can _____________________________________.

A accommodate a greater volume of blood

B expand the thoracic cage during diastole

C pump blood through a smaller valve

D pump blood with greater pressure

Question #19

The semilunar valves are closed when ______________________________________.

A the atrioventricular valves are closed.

B the ventricles are relaxing.

C There is gas exchange in the capillary beds of the lungs.

D the ventricles are contracting

Question #20

The heart contracts twice for every heartbeat. One contraction is the atrial contraction while the other is the ventricular contraction.
During ventricular contraction, which two valves of the heart open?

A Aortic semilunar and mitral valves

B Aortic semilunar and tricuspid valves

C Pulmonary semilunar and tricuspid valves

D Pulmonary and aortic semilunar valves

Question #21

The heart “heartstrings” are _______________________________.

A cusps of the atrioventricular valves

B trabeculae carneae

C papillary muscles

D chordae tendineae.

Question #22

All cardiac cells can generate electrical impulses.

A False

B True

Question #23

Heart chamber responsible for pumping oxygenated blood to tissues all over the body.

A right atrium.

B right ventricle.

C left ventricle.

D left atrium.

Question #24

Blood within the pulmonary veins returns to the ______________________________.

A left ventricle

B left atrium

C right ventricle

D right atrium

Question #25

During ventricular systole _______________________________________________.

A There is gas exchange in the capillary bed of the right and left lungs.

B blood flows into the right and left ventricles.

C deoxygenated blood flows into the right atrium.

D pressure raises in ventricles pumping blood into the pulmonary trunk and aorta.

Question #26

Fast heart rhythm that originates in one of the ventricles of the heart.

A congestive heart failure.

B pulmonary arterial hypertension.

C atrial fibrillation.

D ventricular tachycardia.

Question #27

Where are the semilunar valves located?

A between the atria and the ventricles.

B between the great veins and the atria.

C only between the left ventricle and the aorta.

D between the ventricles and the great arteries (aorta and pulmonary trunk)

Question #28

The right ventricle pumps blood into which vessel?

A the pulmonary trunk

B the pulmonary vein

C the aorta

D the superior vena cava

Question #29

Which of the following vessels does not carry oxygen-poor blood to the heart?

A the coronary sinus

B the superior vena cava

C the inferior vena cava

D the pulmonary veins

Question #30

The inner endothelial layer that lines the heart is the ___________________.

A epicardium

B pericardium

C myocardium

D endocardium

Question #31

Which layer of the heart wall is the thickest?

A endocardium

B endothelium

C myocardium

D epicardium

Question #32

Death of heart musculature due to lack of oxygen.

A Cor pulmonale

B heart block

C valve insufficiency

D myocardial infarction

E ventricular fibrillation

Question #33

What is the valve responsible for preventing backflow of blood from the lungs into the heart?

A tricuspid valve

B aortic semilunar valve

C bicuspid valve

D pulmonary semilunar valve

E pectinate muscles

Question #34

What is the heart chamber that receives blood from the superior vena cava, inferior vena cava, and coronary sinus?

A left ventricle

B right ventricle

C right atrium

D left atrium

Question #35

What is the heart chamber that receives oxygenated blood from the pulmonary veins?

A left ventricle

B right ventricle

C left atrium

D right atrium

Question #36

If the mother’s blood type is B and father’s blood type is O.
What would be the blood type of the baby ?

A A

B O

C B

D AB

Question #37

People with _________ blood type are often called “universal recipients”.

A AB+

B A+

C O-

D B-

Question #38

If your blood type is B, your blood plasma has ______________________.

A B antibodies

B A antibodies and B antibodies are NOT present in plasma.

C A antibodies

D A antibodies and B antibodies

Question #39

If your blood type is AB, your blood plasma has ______________________.

A A antibodies and B antibodies

B A antibodies and B antibodies are NOT present in plasma.

C B antibodies

D A antibodies

Question #40

If your blood type is O, your blood plasma has ______________________.

A A antibodies

B A antibodies and B antibodies are NOT present in plasma.

C B antibodies

D A antibodies and B antibodies

Question #41

If your blood type is A, your blood plasma has ______________________.

A B antibodies

B A antibodies and B antibodies are NOT present in plasma

C A antibodies

D A antibodies and B antibodies

Question #42

What hormone produced in the kidneys stimulates production of red blood cells?

A erythropoietin

B adrenalin

C lipase

D carbonic anhydrase

E prolactin

Question #43

Which of the cells below are agranular leukocytes?

A eosinophils and monocytes

B monocytes and neutrophils

C neutrophils and lymphocytes

D neutrophils and basophils

E lymphocytes and monocytes

Question #44

Plasma protein involved in blood clotting.

A albumin

B platele

C globulin

D fibrinogen

Question #45

Blood disease in which there is an abnormally low concentration of platelets in blood.

A Thrombocytopenia

B Anemia

C Leukemia

D Polycythemia

Question #46

The percentage of erythrocytes in a normal volume of blood is about ____________.

A 10%.

B 90%.

C 45%

D 30%.

Question #47

Blood’s disease in which there is an abnormal excess of erythrocytes.

A Anemia

B Thrombocytopenia

C Polycythemia

D Leukemia

Question #48

B cells fight infections by _________________________________.

A producing antibodies.

B killing off body cells.

C acting as killer cells.

D engulfing foreign pathogens.

Question #49

Platelets develop from cells known as ____________________________.

A monocytes

B erythrocytes

C lymphocytes

D megakaryocytes

Question #50

If examination of the blood reveals a large number of immature leukocytes, the individual is probably suffering from _______________________________.

A sickle cell disease.

B thrombocytopenia.

C leukemia.

D anemia.

Question #51

Which of the following cells develop into macrophages?

A monocytes

B basophils

C neutrophils

D lymphocytes

Question #52

T cells function to ___________________________.

A produce antibodies.

B respond primarily to bacteria and bacterial toxins in body fluids.

C phagocytize antigen-antibody complexes.

D destroy body cells infected with viruses.

Question #53

When centrifuged, blood separates into the following sequence of layers, from lightest to heaviest:

A buffy coat, plasma, hematocrit.

B plasma, buffy coat, hematocrit.

C buffy coat, hematocrit, plasma.

D hematocrit, plasma, buffy coat.

Question #54

An average female has approximately _____________ of blood .

A 6 liters

B 8 liters

C 2 liter

D 4 liters

Question #55

Diapedesis is defined as ____________________________________________.

A amoeboid motion.

B the exit of leukocytes from capillaries.

C the ingestion of bacteria by macrophages.

D the process by which eosinophils attack worms.

Question #56

Which white blood cells contain granules of histamine?

A eosinophils

B basophils

C neutrophils

D lymphocytes

Question #57

Blood is associated with which of the following forms of homeostasis?

A supply of gases such as oxygen.

B transport of hormones.

C removal of waste material such as carbon dioxide.

D All of the possible answers are correct.

E nutrient supply to the body.

Question #58

___________________ is a condition in which the blood’s capacity for carrying oxygen is diminished.

A Anemia

B Leukemia

C Thrombocytopenia

D Polycythemia

Question #59

Which of the following blood cells lack mitochondria?

A neutrophils

B platelets

C erythrocytes

D basophils

Question #60

Hematocrit measures the percentage of blood volume that consists of _________________.

A erythrocytes

B neutrophils

C platelets

D plasma

Question #61

Blood formed element involved in inflammatory and allergic reactions.

A lymphocyte

B basophil

C neutrophil

D eosinophil

E erythrocyte

Question #62

Most abundant formed elements.

A erythrocytes

B myeloids

C monocytes

D eosinophils

E basophils

Question #63

Protein in blood plasma important in regulating blood volume by maintaining the osmotic pressure of blood compartments and keeping water from leaking out of the vessels.

A hematocrit

B fibrinogen

C transferin

D globulins

E albumin

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