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makvit [3.9K]
3 years ago
5

Which of the following BEST describes varicose veins? A. Veins cannot prevent the backflow of blood. B. Veins lose the ability t

o transport blood to the heart. C. Veins become used for transporting blood to and from the heart. D. Veins become less efficient at transferring waste to the blood.
Health
2 answers:
Ksenya-84 [330]3 years ago
6 0

Answer:

Varicose veins can best be described as veins cannot prevent the backflow of blood.

Explanation:

Varicose veins are a manifestation of venous insufficiency or peripheral vascular insufficiency.

Veins are blood vessels that, unlike arteries, are not able to contract, so they depend on gravity, muscle contractions and a system of valves to be able to carry blood to the heart.

<u>When the venous valves do not work, the blood is not transported properly, backflow occurs and is retained, producing dilation of the vein walls, which is characteristic of varicose veins</u>. In this case, veins cannot prevent the backflow of blood.

The other options are not correct because:

  • <em>Varicose veins do not lose their ability to transport blood. </em>
  • <em>Veins cannot be used to transport blood from the heart. </em>
  • <em>Failure to adequately transport waste to the heart does not apply in this case.</em>
bezimeni [28]3 years ago
3 0

Answer:

Answer is A

Explanation:

Credit to the guy/girl above me

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