"Christ is the head of every man, and a husband the head of his wife, and God the head of Christ"--1 Corinthians 11:3

The husband is the head of his wife, the wife is the heart of her husband-- and the body cannot live without the heart nor the head. Men tend to be logic and reason while women tend to be the compassion and emotion in the world... But it is important to note that if we look at things biologically, the head "controls" the heart in that it automatically keeps it beating-- but it has no direct voluntary control over how fast it beats, or when it beats. If you look at the heart as the emotions, the head has no control over that either. It can rationalize/ lessen/ increase input from the heart, but it does not control it and in fact is reliant on it. So when it is said that the man is the head of his wife, it does not suggest domination or place the woman on a lesser rung.