In the economy, there is a circular flow of income and spending. 1  Everything is connected. Money that is earned flows from one person to another, and most of it gets spent again - not just once, but many times.
Stage 1: excitement or arousal. A man gets an erection with physical or psychological stimulation, or both. This causes more blood to flow into three spongy areas (called corpora) that run along the length of his penis. The skin is loose and mobile, allowing his penis to grow.
Here are some of the major causes of vaginal bleeding after sex : 1. Chlamydia: This is a type of STD caused due to the bacteria called Chlamydia trachomatic. This is transmitted by sexual activity, vaginal fluid, blood or contact with semen. 2.