Grandparents have always been important. Today, they're even more important. In busy, two-career and single-parent families, an involved grandparent goes a long way to filling a void for children. In extreme situations, the courts have found it's often a grandparent who can reach a troubled teen when no one else can.
Here's how to enlarge your veins and arteries for plasma donation: 1  Heat up your arm. When veins become overheated, they expand, and draw closer to the skin. 2  Hold off on drinking and smoking. Both smoking and drinking alcoholic beverages makes veins and arteries smaller and harder. 3  Hold off on the caffeine.
(Their diameter is 5 to 10  micrometers, or 5 to 10 millionths of a meter.) Capillaries connect  arterioles and venules, which are the smaller extensions of the  larger arteries and veins. the smallest blood vessels in the body branched off from arteries.A capilary is a small artery. Capillaries are the very small vessels that send blood from arteries to veins in the body. 2  More active organs and tissues have more capillary networks. 3  Unlike veins and arterâ¦.