Multiple Choice
What prevents the backflow of blood in veins?
A) valves
B) the narrowed lumen
C) thick smooth muscle and elastic layers
D) increased blood pressure
Correct Answer:
Verified
Related Questions
Q24: By definition, veins are
A) vessels that carry
Q25: Q26: In a capillary bed, relaxation of the Q27: Why do the arteries and veins of Q28: The cerebral arterial circle forms a loop Q30: Q31: The correct proximal to distal sequence of Q32: The pulmonary circuit Q33: Functionally, there are no valves in arteries Q34: Unlock this Answer For Free Now! View this answer and more for free by performing one of the following actions Scan the QR code to install the App and get 2 free unlocks Unlock quizzes for free by uploading documents
A) supplies oxygenated blood to
