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Question 1 1 out of 1 points A physician finds that one of his patients has the following problems: blood clots very slowly or not at all, and severe bruises result from even the most minor bumps....

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  • Question 1
1 out of 1 points
A physician finds that one of his patients has the following problems: blood clots very slowly or not at all, and severe bruises result from even the most minor bumps. Which of the following conditions should be diagnosed based on this information?
Answer
Selected Answer:
hemophilia
Correct Answer:
hemophilia
  • Question 2
1 out of 1 points
If an individual is O+, which of the following antigens are on the surface of his red blood cells?
Answer
Selected Answer:
Rh
Correct Answer:
Rh
  • Question 3
0 out of 1 points
Results of an ABO blood typing indicate agglutination reactions when anti-A and anti-B are added to the blood sample. The blood type of the individual would therefore be
Answer
Selected Answer:
B.
Correct Answer:
AB.
  • Question 4
0 out of 1 points
Which of the following occurs first in the process of hemostasis?
Answer
Selected Answer:
blood clotting
Correct Answer:
vascular spasm
  • Question 5
0 out of 1 points
During the formation of a blood clot, conversion of prothrombin into the enzyme thrombin requires
Answer
Selected Answer:
leukocytes.
Correct Answer:
calcium ions.
  • Question 6
0 out of 1 points
When a blood vessel gets damaged, contractions of smooth muscle referred to as ________ help constrict the vessels to reduce blood flow.
Answer
Selected Answer:
homeostasis
Correct Answer:
vascular spasms
  • Question 7
0 out of 1 points
In a weaken heart, the heart begins to pump less blood, resulting in blood backing up in the veins causing pressure in veins and capillaries to rise. This condition is called
Answer
Selected Answer:
angina.
Correct Answer:
congestive heart failure.
  • Question 8
0 out of 1 points
Several factors are known to increase the risk of heart attack, including lack of exercise, smoking, high cholesterol, poor diet and
Answer
Selected Answer:
low stress.
Correct Answer:
high stress.
  • Question 9
1 out of 1 points
Blood movement in veins is aided by
Answer
Selected Answer:
All of these are correct.
Correct Answer:
All of these are correct.
  • Question 10
0 out of 1 points
The aortic semilunar valve opens when
Answer
Selected Answer:
the atrium is in systole.
Correct Answer:
the arterial pressure is lower than the ventricular pressure.
  • Question 11
0 out of 1 points
Blood pressure in veins is lower than in arteries and a series of ________ are necessary to prevent backflow of blood.
Answer
Selected Answer:
tricuspid valves
Correct Answer:
one-way valves
  • Question 12
0 out of 1 points
The atrioventricular valves are closed when
Answer
Selected Answer:
the right atrium is contracting.
Correct Answer:
the ventricles contract.
  • Question 13
0 out of 1 points
The endothelium of the heart and blood vessels is composed of a smooth layer of connective tissue that reduces friction which helps keep blood flowing smoothly.
Answer
Selected Answer: True
Correct Answer: False
  • Question 14
1 out of 1 points
Blood pressure in veins is lower than blood pressure in arteries, due in part to the larger diameter of veins.
Answer
Selected Answer: True
Correct Answer: True
  • Question 15
1 out of 1 points
Vasoconstriction causes an increase in the diameter of blood vessels, thus causing an increase in blood flow to the tissues.
Answer
Selected Answer: False
Correct Answer: False
  • Question 16
0 out of 1 points
Erythropoietin is a hormone secreted by the spleen that results in an increased production of red blood cells.
Answer
Selected Answer: True
Correct Answer: False
  • Question 17
0 out of 1 points
Platelets function to engulf foreign cells by phagocytosis.
Answer
Selected Answer: True
Correct Answer: False
  • Question 18
1 out of 1 points
Oxygen, but not carbon dioxide, can bind to the heme group of hemoglobin.
Answer
Selected Answer: False
Correct Answer: False
  • Question 19
1 out of 1 points
"Blood is thicker than water" is a true statement since blood contains many components that are more dense than water.
Answer
Selected Answer: True
Correct Answer: True

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Answered Same Day Dec 22, 2021

Solution

David answered on Dec 22 2021
127 Votes
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