The normal characteristics of smooth muscle: Smooth muscle is found in many different places in the human body: Unlike skeletal muscle, smooth muscle is generally not identifiable from gross observation of the body.
Demand can be classified as elastic, inelastic or unitary. An elastic demand is one in which the change in quantity demanded due to a change in price is large. An inelastic demand is one in which the change in quantity demanded due to a change in price is small. This is taken from a website at www.agmrc.org.
Perfectly inelastic means that quantity demanded or supplied is unaffected by any change in price. In other words, the quantity is essentially fixed. It does not matter how much price changes, quantity does not budge. Perfectly inelastic demand occurs when buyers have no choice in the consumption of a good.