BIO 202 Exam 2 Practice Questions
1. the cardiac conduction system includes all of the following except:
a. SA node
b. AV node
c. bundle branches
d. tendinous cords
e. subendocardial conducting network: d. tendinous cords
2. to get from the right atrium to right ventricle, blood flows through:
a. pulmonary valve
b. tricuspid valve
c. bicuspid valve
d. aortic valve
e. mitral valve: b. tricuspid valve
3. a heart rate of 45bpm and an absence of P waves suggests
a. damage to SA node
b. ventricular fibrillation
c. cor pulmonale
d. extrasystole
e. heart block: a. damage to SA node
4. there is/are pulmonary vein(s) emptying into the right
atrium of the heart
a. no
b. one
c. two
d. four
e. more than four: a. no
5. all of the following are positive chronotropic agents except
a. caffeine
b. thyroid hormone
c. norepinephrine
d. acetylcholine
e. hypocalcemia: d. acetylcholine
6. the atria contract during
a. first heart sound
b. second heart sound
1/4
, c. QRS complex
d. PQ segment
e. ST segment: d. PQ segment
7. cardiac muscle does not exhibit tetanus because it has
a. fast Ca2+ channels
b. scanty sarcoplasmic reticulum
2/4
1. the cardiac conduction system includes all of the following except:
a. SA node
b. AV node
c. bundle branches
d. tendinous cords
e. subendocardial conducting network: d. tendinous cords
2. to get from the right atrium to right ventricle, blood flows through:
a. pulmonary valve
b. tricuspid valve
c. bicuspid valve
d. aortic valve
e. mitral valve: b. tricuspid valve
3. a heart rate of 45bpm and an absence of P waves suggests
a. damage to SA node
b. ventricular fibrillation
c. cor pulmonale
d. extrasystole
e. heart block: a. damage to SA node
4. there is/are pulmonary vein(s) emptying into the right
atrium of the heart
a. no
b. one
c. two
d. four
e. more than four: a. no
5. all of the following are positive chronotropic agents except
a. caffeine
b. thyroid hormone
c. norepinephrine
d. acetylcholine
e. hypocalcemia: d. acetylcholine
6. the atria contract during
a. first heart sound
b. second heart sound
1/4
, c. QRS complex
d. PQ segment
e. ST segment: d. PQ segment
7. cardiac muscle does not exhibit tetanus because it has
a. fast Ca2+ channels
b. scanty sarcoplasmic reticulum
2/4
