Lecture test 4

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Question #1

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

A Capillaries

B Veins

C Arteries

Question #2

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

A Arteries

B Veins

C Capillaries

Question #3

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

A Arteries

B Veins

C Capillaries

Question #4

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

A the atrioventricular bundle

B the chordae tendineae

C The Bundle of His

D the sinoatrial node

E the Purkinje fibers

Question #5

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

A Gas exchange occurs in the capillary beds of the lungs

B The ventricles contract

C The atrioventricular valves close (tricuspid and bicuspid)

D The semilunar valves close (pulmonary and aortic)

Question #6

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

A The ventricles contract

B The atrioventricular valves close (tricuspid and bicuspid)

C Gas exchange occurs in the capillary beds of the lungs

D The semilunar valves close (pulmonary and aortic)

Question #7

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

A left atrium

B left ventricle

C lungs

D right atrium

E right ventricle

Question #8

What is considered the pacemaker of the heart?

A the sinoatrial node

B Purkinje fibers

C the atrioventricular node

D atrioventricular bundle

E medulla oblongata

Question #9

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

A superior vena cava

B pulmonary veins

C pulmonary trunk

D aorta

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 left atrium

B right ventricle

C right atrium

D left ventricle

E aorta

Question #11

What is the function of semilunar valves in veins?

A increase the rate of blood flow

B remove debris from blood

C prevent the backward flow of blood

D oxygenate the blood

E regulation of blood pressure

Question #12

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

A aortic semilunar valve

B pulmonary semilunar valve

C mitral valve

D pulmonary artery

E tricuspid valve

Question #13

What are the components of the cardiovascular system?

A veins, blood and heart

B arteries, veins and heart

C capillaries, arteries, heart and veins

D heart, blood and blood vessels

E arteries and veins

Question #14

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

A participate in temperature homeostasis

B allow for the detection of stimuli from the external environment

C transports cells of the immune system

D transport oxygen to tissues and remove waste materials

Question #15

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

A medulla oblongata of the brain stem

B cerebral cortex of the temporal lobe

C thoracic segments of the spinal cord

D pituitary gland of the diencephalon

Question #16

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

A False

B True

Question #17

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

A superios vena cava

B pulmonary trunk

C aorta

D pulmonary vein

Question #18

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

A pump blood with greater pressure

B expand the thoracic cage during diastole

C accommodate a greater volume of blood

D pump blood through a smaller valve

Question #19

The semilunar valves are closed when ______________________________________.

A the ventricles are contracting

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

C the ventricles are relaxing.

D the atrioventricular valves are closed.

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 Pulmonary and aortic semilunar valves

C Aortic semilunar and tricuspid valves

D Pulmonary semilunar and tricuspid valves

Question #21

The heart “heartstrings” are _______________________________.

A chordae tendineae.

B cusps of the atrioventricular valves

C trabeculae carneae

D papillary muscles

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 right ventricle

C right atrium

D left atrium

Question #25

During ventricular systole _______________________________________________.

A blood flows into the right and left ventricles.

B deoxygenated blood flows into the right atrium.

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

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

Question #26

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

A pulmonary arterial hypertension.

B congestive heart failure.

C ventricular tachycardia.

D atrial fibrillation.

Question #27

Where are the semilunar valves located?

A between the atria and the ventricles.

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

C between the great veins and the atria.

D only between the left ventricle and the aorta.

Question #28

The right ventricle pumps blood into which vessel?

A the superior vena cava

B the pulmonary trunk

C the aorta

D the pulmonary vein

Question #29

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

A the pulmonary veins

B the inferior vena cava

C the coronary sinus

D the superior vena cava

Question #30

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

A pericardium

B endocardium

C epicardium

D myocardium

Question #31

Which layer of the heart wall is the thickest?

A endothelium

B endocardium

C epicardium

D myocardium

Question #32

Death of heart musculature due to lack of oxygen.

A myocardial infarction

B heart block

C Cor pulmonale

D valve insufficiency

E ventricular fibrillation

Question #33

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

A pectinate muscles

B aortic semilunar valve

C bicuspid valve

D tricuspid valve

E pulmonary semilunar valve

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 right ventricle

B left ventricle

C right atrium

D left 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 AB

C B

D O

Question #37

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

A A+

B O-

C B-

D AB+

Question #38

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

A A antibodies

B B antibodies

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

D A antibodies and B antibodies

Question #39

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

A A antibodies

B A antibodies and B antibodies

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

D B antibodies

Question #40

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

A A antibodies and B antibodies

B B antibodies

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

D A antibodies

Question #41

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

A A antibodies and B antibodies

B A antibodies

C B antibodies

D A antibodies and B antibodies are NOT present in plasma

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 basophils

D neutrophils and lymphocytes

E lymphocytes and monocytes

Question #44

Plasma protein involved in blood clotting.

A globulin

B albumin

C fibrinogen

D platele

Question #45

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

A Leukemia

B Anemia

C Polycythemia

D Thrombocytopenia

Question #46

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

A 10%.

B 45%

C 30%.

D 90%.

Question #47

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

A Leukemia

B Anemia

C Polycythemia

D Thrombocytopenia

Question #48

B cells fight infections by _________________________________.

A producing antibodies.

B engulfing foreign pathogens.

C acting as killer cells.

D killing off body cells.

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 anemia.

B thrombocytopenia.

C sickle cell disease.

D leukemia.

Question #51

Which of the following cells develop into macrophages?

A basophils

B neutrophils

C lymphocytes

D monocytes

Question #52

T cells function to ___________________________.

A phagocytize antigen-antibody complexes.

B produce antibodies.

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

D destroy body cells infected with viruses.

Question #53

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

A plasma, buffy coat, hematocrit.

B buffy coat, plasma, hematocrit.

C buffy coat, hematocrit, plasma.

D hematocrit, plasma, buffy coat.

Question #54

An average female has approximately _____________ of blood .

A 6 liters

B 4 liters

C 8 liters

D 2 liter

Question #55

Diapedesis is defined as ____________________________________________.

A the process by which eosinophils attack worms.

B the exit of leukocytes from capillaries.

C the ingestion of bacteria by macrophages.

D amoeboid motion.

Question #56

Which white blood cells contain granules of histamine?

A neutrophils

B lymphocytes

C eosinophils

D basophils

Question #57

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

A transport of hormones.

B All of the possible answers are correct.

C removal of waste material such as carbon dioxide.

D nutrient supply to the body.

E supply of gases such as oxygen.

Question #58

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

A Leukemia

B Thrombocytopenia

C Anemia

D Polycythemia

Question #59

Which of the following blood cells lack mitochondria?

A neutrophils

B basophils

C erythrocytes

D platelets

Question #60

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

A plasma

B neutrophils

C platelets

D erythrocytes

Question #61

Blood formed element involved in inflammatory and allergic reactions.

A neutrophil

B basophil

C lymphocyte

D eosinophil

E erythrocyte

Question #62

Most abundant formed elements.

A eosinophils

B monocytes

C basophils

D erythrocytes

E myeloids

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 globulins

C fibrinogen

D transferin

E albumin

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