Human penis tension of the suspensory ligament that holds it in position. The following table shows how common various erection angles are for a standing male, out of a sample of 1,564 males aged 20 through 69. In the table, zero degrees is pointing straight up against the abdomen, 90 degrees is horizontal and pointing straight forward, while 180 degrees would be pointing straight down to the feet. An upward pointing angle is most common. Ejaculation is the ejecting of semen from the penis, and is usually accompanied by orgasm. A series of muscular contractions delivers semen, containing male gametes known as
Etiquette in Japan from the waist with the back and neck straight, hands at the sides (males) or clasped at the lap (females), and eyes looking down. The body should be composed but not rigid. Generally, the longer and deeper the bow, the stronger the emotion and respect expressed. The three main types of bows are informal, formal, and very formal. Informal bows are made at about a fifteen-degree angle or just tilt over one's head to the front, and more formal bows at about thirty degrees. Very formal bows are deeper. The etiquette surrounding bowing, including the length, depth, and appropriate response,