Question 1 of 32
What is the bursting of a blood vessel called?
Question 2 of 32
At any one time, where is the majority of the blood found in the body?
Question 3 of 32
Blood pressure ______ with distance from the left ventricle while the total cross-sectional area of the blood vessels __________.
C.stays the same, decreases
D.stays the same, increases
E.decreases, stays the same
Question 4 of 32
Which of the following blood vessels are small, thin, and porous enough to exchange substances at the tissue level of organization?
Question 5 of 32
What is the instrument called that is used to measure blood pressure?
Question 6 of 32
Which of the following activities is not recommended for prevention of cardiovascular disease?
Question 7 of 32
RBCs are better known as ________ and WBCs are better known as ___________.
Question 8 of 32
After blood clots, the yellowish fluid that escapes from the clot is called
Question 9 of 32
Hemoglobin that carries carbon dioxide is called
Question 10 of 32
How many globin chains are found in hemoglobin?
Question 11 of 32
Which term refers to uncontrolled growth of white blood cells?
Question 12 of 32
Certain complement proteins kill foreign microbes by
Question 13 of 32
The RhoGAM shot given to Rh negative mothers with an Rh positive fetus is an example of what type of immunity?
Question 14 of 32
Shaun was in need of a kidney transplant. What is the most important thing that needs to match between him and the kidney donor?
Question 15 of 32
Which of the following is not a sign of inflammation?
Question 16 of 32
Which of the following is not an autoimmune disease?
D.systemic lupus erythematosus
Question 17 of 32
What is the name of the lymphatic vessels located in the small intestines?
Question 18 of 32
Which category of disease classification is described as having more cases than expected in a given period of time?
D.None of these
Question 19 of 32
Question 20 of 32
In which phase of an HIV infection is the person typically asymptomatic?
A.acute phase (A)
B.chronic phase (B)
Question 21 of 32
The HIV virus contains a genome composed of
Question 22 of 32
How long does the treatment for TB take?
Question 23 of 32
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
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
Which of the following types of muscle are capable of autorhythmicity?
D.Cardiac and smooth
E.Cardiac and skeletal
Question 25 of 32
What happens during Phase 3 of cardiac muscle depolarization?
Question 26 of 32
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
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
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
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.