Episiotomy is done as prophylaxis against soft-tissue tearing which would involve the anal sphincter and rectum. Vaginal tears can occur during childbirth, most often at the vaginal opening as the baby's head passes through, especially if the baby descends quickly.February 2009). An episiotomy (/ÉËpiËziËËÉtÉmiË/ or /ÉËpÉsaÉªËÉtÉmiË/), also known as perineotomy, is a surgical incision of the perineum and the posterior vaginal wall generally done by a midwife or obstetrician during second stage of labor to quickly enlarge the opening for the baby to pass through.
The Nimitz-class are the largest warships currently in service. The class comprises ten supercarrier. The largest warships are in service with the US Navy. The class' lead ship, USS Nimitz, was commissioned on May 3, 1975. The name is given after Fleet Admiral Chester W. Nimitz. He is the last fleet admiral of the United States Navy. The last vessel from the largest warships class is USS George H.W. Bush, commissioned on January 10, 2009.
The Oasis class have surpassed the earlier Freedom class as the world's largest passenger ships. At 360 m (1,181 feet) in length Oasis is 21 metres (69 ft) longer than the prior largest passenger ship, the Independence of the Seas and classmates. Oasis also is 8.5 metres (28 ft) wider, and with a gross tonnage of 225,282, is almost 45% larger.