Question

What physical feature of large systemic arteries (resistance vessels) makes them relatively more responsive to changes in intracellular calcium concentrations?​

Answer 1

Answer:

All blood vessels have a tunica intima. This layer is made of endothelial cells, and is an essential structural component.

Intracellular calcium is the cellular messenger

The tunica media is a muscular layer, which can be contracted and relaxed to enact changes in blood pressure.

A thick tunica media is characteristic of large systemic arteries.

A thick tunica media explains the responsiveness of large systemic arteries to changes in intracellular calcium concentrations.