Multiple Choice
Which of the following assists in moving venous blood back to the heart?
A) Contraction of skeletal muscles
B) One-way valves in the veins
C) The changing pressure in the chest caused by breathing
D) All of the above
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q13: The pericardium is composed of<br>A) muscle tissue<br>B)
Q14: Identify the order in which a drop
Q15: Match the structure with the description.<br>-Valve that
Q16: Arteries always carry blood away from the
Q17: One function of the hepatic portal system
Q19: Another name for a heart attack is
Q20: An increase in heart rate always leads
Q21: The apical beat can best be heard<br>A)
Q22: A heart that is beating weakly will
Q23: Pulse<br>A) can only be felt in the