Question
Question 1 of 32
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What is the bursting of a blood vessel called?
A . embolus
B . aneurysm
C . thrombus
D . myocardial infarction
E . stroke
Question 2 of 32
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At any one time, where is the majority of the blood found in the body?
A . veins
B . lungs
C . lymphatic vessels
D . capillaries
E . arteries
Question 3 of 32
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Blood pressure ______ with distance from the left ventricle while the total cross-sectional area of the blood vessels __________ .
A . decreases, increases
B . increases, decreases
C . stays the same, decreases
D . stays the same, increases
E . decreases, stays the same
Question 4 of 32
3 . 0/ 3 . 0 Points
Which of the following blood vessels are small, thin, and porous enough to exchange substances at the tissue level of organization?
A . arterioles
B . capillaries
C . venules
D . small arteries
E . veins
Question 5 of 32
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What is the instrument called that is used to measure blood pressure?
A . stethoscope
B . CPR
C . sphygmomanometer
D . ECG
E . AED
Question 6 of 32
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Which of the following activities is not recommended for prevention of cardiovascular disease?
A . Know your cholesterol level .
B . Take antioxidant vitamins (A, E, and C) .
C . Raise the LDL intake .
D . Use olive and canola oil rather than butter/cream .
E . Exercise moderately .
Question 7 of 32
3 . 0/ 3 . 0 Points
RBCs are better known as ________ and WBCs are better known as ___________ .
A . lymphocytes, monocytes
B . erythrocytes, eosinophils
C . leukocytes, erythrocytes
D . erythrocytes, leukocytes
E . macrophages, neutrophils
Question 8 of 32
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After blood clots, the yellowish fluid that escapes from the clot is called
A . thrombin.
B . fibrinogen.
C . serum.
D . lymph.
E . plasma.
Question 9 of 32
3 . 0/ 3 . 0 Points
Hemoglobin that carries carbon dioxide is called
A . oxyhemoglobin.
B . betahemoglobin.
C . carbaminohemoglobin.
D . alphahemoglobin.
E . deoxyhemoglobin.
Question 10 of 32
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How many globin chains are found in hemoglobin?
A . 0
B . 1
C . 2
D . 3
E . 4
Question 11 of 32
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Which term refers to uncontrolled growth of white blood cells?
A . leukemia
B . infectious mononucleosis
C . thrombocytopenia
D . hemophilia
E . thromboembolism
Question 12 of 32
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Certain complement proteins kill foreign microbes by
A . creating interferon .
B . causing them to burst .
C . inactivating their ribosomes.
D . agglutinating them .
E . destroying their nucleic acids .
Question 13 of 32
3 . 0/ 3 . 0 Points
The RhoGAM shot given to Rh negative mothers with an Rh positive fetus is an example of what type of immunity?
A . active
B . passive
C . nonspecific
D . general
E . neutral
Question 14 of 32
3 . 0/ 3 . 0 Points
Shaun was in need of a kidney transplant . What is the most important thing that needs to match between him and the kidney donor?
A . TCR
B . MHC
C . PCR
D . HCG
E . EKG
Question 15 of 32
3 . 0/ 3 . 0 Points
Which of the following is not a sign of inflammation?
A . redness
B . heat
C . swelling
D . pain
E . difficulty breathing
Question 16 of 32
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Which of the following is not an autoimmune disease?
A . hay fever
B . rheumatic fever
C . rheumatoid arthritis
D . systemic lupus erythematosus
E . myasthenia gravis
Question 17 of 32
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What is the name of the lymphatic vessels located in the small intestines?
A . tonsils
B . nodes
C . polyps
D . adenoids
E . Peyer patches
Question 18 of 32
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Which category of disease classification is described as having more cases than expected in a given period of time?
A . epidemic
B . outbreak
C . pandemic
D . None of these
E . opportunistic infection
Question 19 of 32
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There are normally 1-2 cases of measles per month in a particular city . However, in the month of September, there were 15 cases . Is this an epidemic?
A . YES
B . NO
Question 20 of 32
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In which phase of an HIV infection is the person typically asymptomatic?
A . acute phase (A)
B . chronic phase (B)
C . AIDS (C)
D . AIDS (D)
E . terminal phase
Question 21 of 32
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The HIV virus contains a genome composed of
A . double stranded DNA .
B . single stranded RNA .
C . double stranded RNA .
D . single stranded RNA .
E . one strand of DNA and one strand of RNA .
Question 22 of 32
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How long does the treatment for TB take?
A . 1-2 days
B . 1-2 weeks
C . 1 month
D . 2 months
E . 6+ months
Question 23 of 32
3 . 0/ 3 . 0 Points
Research shows that in the absence of neural and hormonal influences, the sinoatrial (SA) node generates action potentials at a frequency of about 100 times per minute . However, the resting heart rate is about 70 beats per minute . What would the approximate heart rate be if the vagus nerve were
severed?
A . about 70 beats per minute
B . faster than 100 beats per minute
C . slower than 70 beats per minute
D . about 100 beats per minute
Question 24 of 32
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Which of the following types of muscle are capable of autorhythmicity?
A . Cardiac
B . Smooth
C . Skeletal
D . Cardiac and smooth
E . Cardiac and skeletal
Question 25 of 32
3 . 0/ 3 . 0 Points
What happens during Phase 3 of cardiac muscle depolarization?
A . Membrane potential falls slightly and then rebounds as potassium flow out of the cell decreases and calcium flows into the cell .
B . “The plateau phase”; when the membrane remains in a depolarized state; potassium channels stay closed and calcium channels stay open .
C . Period of resting potential until the next depolarization .
D . repolarization to reach the resting membrane potential .
Question 26 of 32
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In the simulation, when vagus nerve stimulation was applied to the frog heart, _______ .
A . the force of contraction increased and the heart rate slowed and eventually stopped
B . the heart rate slowed and eventually stopped
C . the force of contraction decreased
D . the force of contraction increased
Question 27 of 32
3 . 0/ 3 . 0 Points
In the simulation, delivering single shocks in succession to stimulate the frog heart _______ .
A . resulted in fused tetanus
B . resulted in wave summation
C . did not increase the height of the ventricular systole wave
D . increased the height of the ventricular systole wave
Question 28 of 32
3 . 0/ 3 . 0 Points
The effect of vagus nerve stimulation on the heart is to _______ .
A . decrease the heart rate
B . increase the heart rate
C . increase the heart rate and increase the force of contraction
D . decrease the heart rate and decrease the force of contraction
Question 29 of 32
3 . 0/ 3 . 0 Points
The repolarization of cardiac muscle is due to _______ .
A . sodium exiting the cell
B . potassium exiting the cell
C . potassium entering the cell
D . sodium entering the cell
Part 6 of 7 – 0 . 0/ 8 . 0 PointsAnswer the following question in your own words without using any resources . Your answer should be written in complete sentences using correct grammar, spelling, and terminology .
Question 30 of 32
Briefly explain why wave summation and tetany would be deadly in cardiac muscle .
Question 31 of 32
Briefly explain how the sympathetic and parasympathetic nervous systems work together to regulate heart rate .
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