Which vessels form when capillaries merge to form larger vessels?

Which vessels form when capillaries merge to form larger vessels?

• A. Venules
• B. Veins
• C. Arterioles
• D. Arteries

Answer: (A)

The flow after capillaries is into venules. Capillaries collect blood from the tissue and merge into small vessels called venules, which then join to form larger veins returning blood toward the heart. Arterioles and arteries are upstream vessels that deliver blood to the capillary beds, while veins are downstream vessels that ultimately drain back to the heart. So the immediate vessels formed when capillaries merge are venules.

The flow after capillaries is into venules. Capillaries collect blood from the tissue and merge into small vessels called venules, which then join to form larger veins returning blood toward the heart. Arterioles and arteries are upstream vessels that deliver blood to the capillary beds, while veins are downstream vessels that ultimately drain back to the heart. So the immediate vessels formed when capillaries merge are venules.