3/2/26, 11:06
AM
EXAM 3 PRAC WITH QUESTIONS AND
ANSWERS 2026/2027 UPDATE.
1. What is the primary function of hemoglobin in red blood cells (RBCs)?
To facilitate gas exchange in the alveoli.
To regulate blood pH levels in the body.
To carry oxygen from the lungs to the body's tissues and transport carbon dioxide
from tissues back to the lungs.
To produce red blood cells in the bone marrow.
2. Describe the physiological effect of vasoconstriction in the lungs on blood flow.
Vasoconstriction has no effect on blood flow.
Vasoconstriction enhances gas exchange efficiency.
Vasoconstriction in the lungs leads to decreased blood
flow. Vasoconstriction increases oxygen delivery to
tissues.
3. What is the term used to describe the widening of blood vessels in the lungs?
Angiogenesis
Vasoconstriction
Hemostasis
Vasodilation
4. If a patient experiences vasoconstriction due to stress, what physiological changes
might occur in their cardiovascular system?
No change in blood pressure or flow
Increased blood pressure and decreased blood flow to non-essential organs
https://quizlet.com/test-questions/exam-3-prac-exam-d3453ad4-36f8-4d1a-8df7- 1/
1886e92acb18 5
, 3/2/26, 11:06
AM Decreased blood pressure and increased blood flow to the heart
Decreased blood pressure and d e cCreoansf ei gdu hree ar t rate
5. Describe how vasodilation affects blood pressure and blood flow in the
cardiovascular system. Take this test
Vasodilation increases blood pressure and decreases blood flow due to the
contraction of smooth muscles in blood vessels.
Vasodilation has no effect on blood pressure or blood flow.
https://quizlet.com/test-questions/exam-3-prac-exam-d3453ad4-36f8-4d1a-8df7- 2/
1886e92acb18 5
AM
EXAM 3 PRAC WITH QUESTIONS AND
ANSWERS 2026/2027 UPDATE.
1. What is the primary function of hemoglobin in red blood cells (RBCs)?
To facilitate gas exchange in the alveoli.
To regulate blood pH levels in the body.
To carry oxygen from the lungs to the body's tissues and transport carbon dioxide
from tissues back to the lungs.
To produce red blood cells in the bone marrow.
2. Describe the physiological effect of vasoconstriction in the lungs on blood flow.
Vasoconstriction has no effect on blood flow.
Vasoconstriction enhances gas exchange efficiency.
Vasoconstriction in the lungs leads to decreased blood
flow. Vasoconstriction increases oxygen delivery to
tissues.
3. What is the term used to describe the widening of blood vessels in the lungs?
Angiogenesis
Vasoconstriction
Hemostasis
Vasodilation
4. If a patient experiences vasoconstriction due to stress, what physiological changes
might occur in their cardiovascular system?
No change in blood pressure or flow
Increased blood pressure and decreased blood flow to non-essential organs
https://quizlet.com/test-questions/exam-3-prac-exam-d3453ad4-36f8-4d1a-8df7- 1/
1886e92acb18 5
, 3/2/26, 11:06
AM Decreased blood pressure and increased blood flow to the heart
Decreased blood pressure and d e cCreoansf ei gdu hree ar t rate
5. Describe how vasodilation affects blood pressure and blood flow in the
cardiovascular system. Take this test
Vasodilation increases blood pressure and decreases blood flow due to the
contraction of smooth muscles in blood vessels.
Vasodilation has no effect on blood pressure or blood flow.
https://quizlet.com/test-questions/exam-3-prac-exam-d3453ad4-36f8-4d1a-8df7- 2/
1886e92acb18 5
