Lecture test 4

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Question #1

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

A Veins

B Capillaries

C Arteries

Question #2

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

A Capillaries

B Veins

C Arteries

Question #3

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

A Capillaries

B Veins

C Arteries

Question #4

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

A the Purkinje fibers

B the sinoatrial node

C the chordae tendineae

D the atrioventricular bundle

E The Bundle of His

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 semilunar valves close (pulmonary and aortic)

D The atrioventricular valves close (tricuspid and bicuspid)

Question #6

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

A The atrioventricular valves close (tricuspid and bicuspid)

B The ventricles contract

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 ventricle

B right atrium

C lungs

D left atrium

E right ventricle

Question #8

What is considered the pacemaker of the heart?

A the atrioventricular node

B medulla oblongata

C the sinoatrial node

D atrioventricular bundle

E Purkinje fibers

Question #9

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

A superior vena cava

B aorta

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 left atrium

B right atrium

C left ventricle

D right ventricle

E aorta

Question #11

What is the function of semilunar valves in veins?

A oxygenate the blood

B remove debris from blood

C prevent the backward flow of blood

D regulation of blood pressure

E increase the rate of blood flow

Question #12

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

A pulmonary artery

B tricuspid valve

C pulmonary semilunar valve

D aortic semilunar valve

E mitral valve

Question #13

What are the components of the cardiovascular system?

A capillaries, arteries, heart and veins

B veins, blood and heart

C heart, blood and blood vessels

D arteries, veins and heart

E arteries and veins

Question #14

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

A allow for the detection of stimuli from the external environment

B participate in temperature homeostasis

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 cerebral cortex of the temporal lobe

B pituitary gland of the diencephalon

C thoracic segments of the spinal cord

D medulla oblongata of the brain stem

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 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 through a smaller valve

B pump blood with greater pressure

C expand the thoracic cage during diastole

D accommodate a greater volume of blood

Question #19

The semilunar valves are closed when ______________________________________.

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

B the ventricles are relaxing.

C the ventricles are contracting

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 Pulmonary and aortic semilunar valves

B Pulmonary semilunar and tricuspid valves

C Aortic semilunar and tricuspid valves

D Aortic semilunar and mitral valves

Question #21

The heart “heartstrings” are _______________________________.

A trabeculae carneae

B papillary muscles

C cusps of the atrioventricular valves

D chordae tendineae.

Question #22

All cardiac cells can generate electrical impulses.

A True

B False

Question #23

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

A right ventricle.

B right atrium.

C left atrium.

D left ventricle.

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 deoxygenated blood flows into the right atrium.

B blood flows into the right and left ventricles.

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 atrial fibrillation.

B ventricular tachycardia.

C congestive heart failure.

D pulmonary arterial hypertension.

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 only between the left ventricle and the aorta.

D between the great veins and the atria.

Question #28

The right ventricle pumps blood into which vessel?

A the superior vena cava

B the pulmonary vein

C the pulmonary trunk

D the aorta

Question #29

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

A the pulmonary veins

B the superior vena cava

C the inferior vena cava

D the coronary sinus

Question #30

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

A epicardium

B pericardium

C endocardium

D myocardium

Question #31

Which layer of the heart wall is the thickest?

A endothelium

B myocardium

C epicardium

D endocardium

Question #32

Death of heart musculature due to lack of oxygen.

A Cor pulmonale

B ventricular fibrillation

C valve insufficiency

D myocardial infarction

E heart block

Question #33

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

A tricuspid valve

B bicuspid valve

C pulmonary semilunar valve

D aortic 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 left atrium

D right atrium

Question #35

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

A left atrium

B right atrium

C right ventricle

D left ventricle

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 B

B A

C AB

D O

Question #37

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

A B-

B A+

C AB+

D O-

Question #38

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

A A antibodies

B A antibodies and B antibodies

C B antibodies

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

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 B antibodies

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

C A antibodies

D A antibodies and B antibodies

Question #41

If your blood type is A, 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 #42

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

A carbonic anhydrase

B adrenalin

C erythropoietin

D prolactin

E lipase

Question #43

Which of the cells below are agranular leukocytes?

A lymphocytes and monocytes

B neutrophils and lymphocytes

C neutrophils and basophils

D monocytes and neutrophils

E eosinophils 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 Anemia

B Polycythemia

C Thrombocytopenia

D Leukemia

Question #46

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

A 10%.

B 30%.

C 45%

D 90%.

Question #47

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

A Leukemia

B Polycythemia

C Anemia

D Thrombocytopenia

Question #48

B cells fight infections by _________________________________.

A killing off body cells.

B engulfing foreign pathogens.

C producing antibodies.

D acting as killer 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 sickle cell disease.

B leukemia.

C thrombocytopenia.

D anemia.

Question #51

Which of the following cells develop into macrophages?

A lymphocytes

B neutrophils

C monocytes

D basophils

Question #52

T cells function to ___________________________.

A produce antibodies.

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

C destroy body cells infected with viruses.

D phagocytize antigen-antibody complexes.

Question #53

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

A hematocrit, plasma, buffy coat.

B buffy coat, plasma, hematocrit.

C buffy coat, hematocrit, plasma.

D plasma, buffy coat, hematocrit.

Question #54

An average female has approximately _____________ of blood .

A 6 liters

B 4 liters

C 2 liter

D 8 liters

Question #55

Diapedesis is defined as ____________________________________________.

A the exit of leukocytes from capillaries.

B amoeboid motion.

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 lymphocytes

B basophils

C eosinophils

D neutrophils

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 supply of gases such as oxygen.

D nutrient supply to the body.

E removal of waste material such as carbon dioxide.

Question #58

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

A Leukemia

B Polycythemia

C Anemia

D Thrombocytopenia

Question #59

Which of the following blood cells lack mitochondria?

A platelets

B neutrophils

C erythrocytes

D basophils

Question #60

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

A plasma

B platelets

C neutrophils

D erythrocytes

Question #61

Blood formed element involved in inflammatory and allergic reactions.

A neutrophil

B erythrocyte

C eosinophil

D basophil

E lymphocyte

Question #62

Most abundant formed elements.

A erythrocytes

B basophils

C monocytes

D myeloids

E eosinophils

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 transferin

C fibrinogen

D globulins

E albumin

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