Asked by Federico Maeso on Jun 10, 2024
Verified
Which vessels have valves to prevent backflow of blood?
A) veins
B) arteries
C) capillaries
D) arterioles
Backflow
The flow of a fluid in a direction opposite to its usual or intended direction, often causing contamination or malfunction in plumbing or in bodily systems.
Valves
Structures present in the heart and veins that maintain unidirectional flow of blood by opening and closing in response to pressure differences.
- Characterize the specifications and utilities of several blood vessels (arteries, veins, capillaries).
Verified Answer
NM
Nguy?n MartinJun 15, 2024
Final Answer :
A
Explanation :
Veins have valves to prevent backflow of blood, as they are responsible for carrying blood back to the heart against gravity. Arteries, capillaries, and arterioles do not have valves.
Learning Objectives
- Characterize the specifications and utilities of several blood vessels (arteries, veins, capillaries).