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BIO 669 EXAM 2 AND STUDYGUIDE LATEST 2025
/2026ACTUAL EXAM WITH COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS ( VERIFIED
AND GRADED A+| UPDATED VERSION
Your patient with a history of coronary artery disease and
regular chest pain brought on by exercise of certain
duration now has significant and worsening chest pain,
sweating, and mild dyspnea. Which of the following
statements is true regarding this patient?
A. He has unstable angina
B. He is at significant risk of an infarction soon
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C. The pain is a signal that an atherosclerotic plaque has
just ruptured in a coronary vein
D. All of the above are true - ANSWER-D. All of the above
are true
In cardiac muscle, Na+ inactivation gates will open again
following another depolarization to potentially occur when:
A. The membrane potential reaches 0mV.
B. When the membrane returns to resting potential
C. K+ channels are closed
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D. Membrane potential reaches threshold - ANSWER-B.
When the membrane returns to resting potential
Which of the following is NOT a systemic disease that is
associated with Raynaud's phenomenon?
A. Congestive heart failure
B. Collagen vascular disease such as scleroderma
C. Pulmonary hypertension
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D. Myxedema or smoking - ANSWER-A. Congestive heart
failure
The ____ is an opening for venous drainage to empty into
the right atrium:
A. Aortic ostia
B. Circumflex vein
C. Great cardiac vein
D. Coronary sinus - ANSWER-D. Coronary sinus
BIO 669 EXAM 2 AND STUDYGUIDE LATEST 2025
/2026ACTUAL EXAM WITH COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS ( VERIFIED
AND GRADED A+| UPDATED VERSION
Your patient with a history of coronary artery disease and
regular chest pain brought on by exercise of certain
duration now has significant and worsening chest pain,
sweating, and mild dyspnea. Which of the following
statements is true regarding this patient?
A. He has unstable angina
B. He is at significant risk of an infarction soon
,2|Page
C. The pain is a signal that an atherosclerotic plaque has
just ruptured in a coronary vein
D. All of the above are true - ANSWER-D. All of the above
are true
In cardiac muscle, Na+ inactivation gates will open again
following another depolarization to potentially occur when:
A. The membrane potential reaches 0mV.
B. When the membrane returns to resting potential
C. K+ channels are closed
,3|Page
D. Membrane potential reaches threshold - ANSWER-B.
When the membrane returns to resting potential
Which of the following is NOT a systemic disease that is
associated with Raynaud's phenomenon?
A. Congestive heart failure
B. Collagen vascular disease such as scleroderma
C. Pulmonary hypertension
, 4|Page
D. Myxedema or smoking - ANSWER-A. Congestive heart
failure
The ____ is an opening for venous drainage to empty into
the right atrium:
A. Aortic ostia
B. Circumflex vein
C. Great cardiac vein
D. Coronary sinus - ANSWER-D. Coronary sinus
