Lecture test 4

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Question #1

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

A Capillaries

B Arteries

C Veins

Question #2

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

A Veins

B Capillaries

C Arteries

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 sinoatrial node

C the Purkinje fibers

D The Bundle of His

E the chordae tendineae

Question #5

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

A The ventricles contract

B The atrioventricular valves close (tricuspid and bicuspid)

C The semilunar valves close (pulmonary and aortic)

D Gas exchange occurs in the capillary beds of the lungs

Question #6

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

A The semilunar valves close (pulmonary and aortic)

B The atrioventricular valves close (tricuspid and bicuspid)

C The ventricles contract

D Gas exchange occurs in the capillary beds of the lungs

Question #7

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

A right atrium

B left atrium

C left ventricle

D lungs

E right ventricle

Question #8

What is considered the pacemaker of the heart?

A Purkinje fibers

B the sinoatrial node

C medulla oblongata

D the atrioventricular node

E atrioventricular bundle

Question #9

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

A pulmonary veins

B pulmonary trunk

C aorta

D superior vena cava

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 right atrium

B right ventricle

C left ventricle

D aorta

E left atrium

Question #11

What is the function of semilunar valves in veins?

A remove debris from blood

B oxygenate the blood

C regulation of blood pressure

D prevent the backward flow of blood

E increase the rate of blood flow

Question #12

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

A aortic semilunar valve

B mitral valve

C pulmonary semilunar valve

D pulmonary artery

E tricuspid valve

Question #13

What are the components of the cardiovascular system?

A capillaries, arteries, heart and veins

B arteries and veins

C heart, blood and blood vessels

D veins, blood and heart

E arteries, veins and heart

Question #14

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

A participate in temperature homeostasis

B transport oxygen to tissues and remove waste materials

C allow for the detection of stimuli from the external environment

D transports cells of the immune system

Question #15

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

A cerebral cortex of the temporal lobe

B thoracic segments of the spinal cord

C pituitary gland of the diencephalon

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 False

B True

Question #17

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

A superios vena cava

B pulmonary vein

C aorta

D pulmonary trunk

Question #18

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

A expand the thoracic cage during diastole

B pump blood through a smaller valve

C pump blood with greater pressure

D accommodate a greater volume of blood

Question #19

The semilunar valves are closed when ______________________________________.

A the atrioventricular valves are closed.

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

C the ventricles are contracting

D the ventricles are relaxing.

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 tricuspid valves

B Aortic semilunar and mitral valves

C Pulmonary semilunar and tricuspid valves

D Pulmonary and aortic semilunar valves

Question #21

The heart “heartstrings” are _______________________________.

A papillary muscles

B trabeculae carneae

C cusps of the atrioventricular valves

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 left atrium.

B right ventricle.

C left ventricle.

D right atrium.

Question #24

Blood within the pulmonary veins returns to the ______________________________.

A right atrium

B left ventricle

C right ventricle

D left atrium

Question #25

During ventricular systole _______________________________________________.

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

B blood flows into the right and left ventricles.

C deoxygenated blood flows into the right atrium.

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 pulmonary arterial hypertension.

D congestive heart failure.

Question #27

Where are the semilunar valves located?

A between the great veins and the atria.

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

C between the atria and the ventricles.

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 aorta

C the pulmonary vein

D the pulmonary trunk

Question #29

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

A the pulmonary veins

B the coronary sinus

C the inferior vena cava

D the superior vena cava

Question #30

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

A epicardium

B endocardium

C pericardium

D myocardium

Question #31

Which layer of the heart wall is the thickest?

A endocardium

B endothelium

C epicardium

D myocardium

Question #32

Death of heart musculature due to lack of oxygen.

A valve insufficiency

B heart block

C myocardial infarction

D ventricular fibrillation

E Cor pulmonale

Question #33

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

A pectinate muscles

B pulmonary semilunar valve

C bicuspid valve

D tricuspid valve

E aortic semilunar valve

Question #34

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

A right atrium

B left ventricle

C left atrium

D right ventricle

Question #35

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

A left atrium

B left ventricle

C right ventricle

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 AB

B O

C A

D B

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 A antibodies

B B antibodies

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

B A antibodies

C A antibodies and B antibodies

D B antibodies

Question #40

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

A A antibodies

B B antibodies

C A antibodies and B antibodies

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

Question #41

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

A A antibodies and B antibodies are NOT present in plasma

B A antibodies and B antibodies

C A antibodies

D B antibodies

Question #42

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

A erythropoietin

B lipase

C adrenalin

D prolactin

E carbonic anhydrase

Question #43

Which of the cells below are agranular leukocytes?

A monocytes and neutrophils

B eosinophils and monocytes

C neutrophils and basophils

D neutrophils and lymphocytes

E lymphocytes and monocytes

Question #44

Plasma protein involved in blood clotting.

A platele

B fibrinogen

C globulin

D albumin

Question #45

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

A Anemia

B Leukemia

C Thrombocytopenia

D Polycythemia

Question #46

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

A 90%.

B 30%.

C 10%.

D 45%

Question #47

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

A Polycythemia

B Leukemia

C Thrombocytopenia

D Anemia

Question #48

B cells fight infections by _________________________________.

A producing antibodies.

B engulfing foreign pathogens.

C killing off body cells.

D acting as killer cells.

Question #49

Platelets develop from cells known as ____________________________.

A erythrocytes

B megakaryocytes

C monocytes

D lymphocytes

Question #50

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

A leukemia.

B thrombocytopenia.

C sickle cell disease.

D anemia.

Question #51

Which of the following cells develop into macrophages?

A neutrophils

B monocytes

C lymphocytes

D basophils

Question #52

T cells function to ___________________________.

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

B destroy body cells infected with viruses.

C phagocytize antigen-antibody complexes.

D produce antibodies.

Question #53

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

A buffy coat, plasma, hematocrit.

B buffy coat, hematocrit, plasma.

C hematocrit, plasma, buffy coat.

D plasma, buffy coat, hematocrit.

Question #54

An average female has approximately _____________ of blood .

A 8 liters

B 4 liters

C 2 liter

D 6 liters

Question #55

Diapedesis is defined as ____________________________________________.

A the exit of leukocytes from capillaries.

B the ingestion of bacteria by macrophages.

C the process by which eosinophils attack worms.

D amoeboid motion.

Question #56

Which white blood cells contain granules of histamine?

A lymphocytes

B eosinophils

C neutrophils

D basophils

Question #57

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

A nutrient supply to the body.

B supply of gases such as oxygen.

C All of the possible answers are correct.

D removal of waste material such as carbon dioxide.

E transport of hormones.

Question #58

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

A Thrombocytopenia

B Leukemia

C Polycythemia

D Anemia

Question #59

Which of the following blood cells lack mitochondria?

A erythrocytes

B neutrophils

C basophils

D platelets

Question #60

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

A neutrophils

B platelets

C erythrocytes

D plasma

Question #61

Blood formed element involved in inflammatory and allergic reactions.

A eosinophil

B basophil

C erythrocyte

D lymphocyte

E neutrophil

Question #62

Most abundant formed elements.

A basophils

B erythrocytes

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 fibrinogen

B albumin

C globulins

D transferin

E hematocrit

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