Q: What are the smallest type of blood vessels?


Read this paragraph and choose the correct option from the provided answers:

Capillaries are the smallest type of blood vessels. They connect very small arteries and veins. The exchange of gases and other substances between cells and the blood takes place across the extremely thin walls of capillaries.

 Choices:

- viens

- arteries

- neurons

- capillaries


A:
capillaries