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.
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- <em>Veins cannot be used to transport blood from the heart.
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- <em>Failure to adequately transport waste to the heart does not apply in this case.</em>
Lo siento, no hablo muy bien el español.
La anemia de células falciformes pertenece a un grupo de trastornos conocidos como enfermedad de células falciformes. La anemia de células falciformes es un trastorno hereditario de los glóbulos rojos en el que no hay suficientes glóbulos rojos sanos para transportar oxígeno por todo el cuerpo.
Normalmente, los glóbulos rojos se mueven fácilmente a través de los vasos sanguíneos. En la anemia de células falciformes, la sangre roja tiene forma de hoz o de luna creciente. Estas células pueden atascarse en pequeños vasos sanguíneos, lo que puede ralentizar o bloquear el flujo sanguíneo y el oxígeno a partes del cuerpo.
Answer:
no but there is an app to scan receipts
Explanation:
its called fetch rewards and you can get free gift cards from you guessed it scanning receipts and earning points from the receipts
True. It was ended due to the mental abuse towards the prisoners at the hands of the guards.
