LS 7C Final: Gas Exchange,
Cardiovascular system EXAM
QUESTION AND VERIFIED CORRECT
ANSWERS GRADED A+ [LATEST
UPDATE] 100% GUARANTEED PASS
False - CORRECT ANSWER-Imagine that a doctor encounters a patient carrying a mutation that
reduces collagen production. As a result, the arteries of this patient will likely be stronger and
more resistant to aneurysms compared to arteries in an individual not carrying this mutation.
(T/F)
a. takes place at the SA node. - CORRECT ANSWER-The initiation of the mammalian heart
contraction:
a. takes place at the SA node.
, b. requires neural input.
c. takes place at the SA node and requires neural input.
d. takes place at the AV node and requires neural input.
e. takes place at the AV node.
d. The left ventricle must contract with more force in order to send blood to the body's
extremities. - CORRECT ANSWER-Consider the mammalian heart. Why is the muscular wall of
the left ventricle thicker than that of the right ventricle?
a. The ventricle wall must be thicker to inhibit diffusion between the right and left ventricle.
b. The left ventricle has more nerve endings for contraction, and more muscle mass must be
there to accommodate the extra neurons.
c. This difference stems from the fact that frogs have a thicker left ventricular muscle mass.
d. The left ventricle must contract with more force in order to send blood to the body's
extremities.
d. Both ventricles contract. - CORRECT ANSWER-Which of the following occurs during systole?
a. Both atria contract.
Cardiovascular system EXAM
QUESTION AND VERIFIED CORRECT
ANSWERS GRADED A+ [LATEST
UPDATE] 100% GUARANTEED PASS
False - CORRECT ANSWER-Imagine that a doctor encounters a patient carrying a mutation that
reduces collagen production. As a result, the arteries of this patient will likely be stronger and
more resistant to aneurysms compared to arteries in an individual not carrying this mutation.
(T/F)
a. takes place at the SA node. - CORRECT ANSWER-The initiation of the mammalian heart
contraction:
a. takes place at the SA node.
, b. requires neural input.
c. takes place at the SA node and requires neural input.
d. takes place at the AV node and requires neural input.
e. takes place at the AV node.
d. The left ventricle must contract with more force in order to send blood to the body's
extremities. - CORRECT ANSWER-Consider the mammalian heart. Why is the muscular wall of
the left ventricle thicker than that of the right ventricle?
a. The ventricle wall must be thicker to inhibit diffusion between the right and left ventricle.
b. The left ventricle has more nerve endings for contraction, and more muscle mass must be
there to accommodate the extra neurons.
c. This difference stems from the fact that frogs have a thicker left ventricular muscle mass.
d. The left ventricle must contract with more force in order to send blood to the body's
extremities.
d. Both ventricles contract. - CORRECT ANSWER-Which of the following occurs during systole?
a. Both atria contract.
