3. What results in a pulse?

Pulse, rhythmic dilation of an artery generated by the opening and closing of the aortic valve in the heart. A pulse can be felt by applying firm fingertip pressure to the skin at sites where the arteries travel near the skin's surface; it is more evident when surrounding muscles are relaxed.

Explanation:

i wish it got that cold here ): im in florida and i've never even seen snow, it never feels like a real holiday. i hope you have a good one with your family !