Each pleural cavity is lined by a pleural membrane that is composed of two layers. The visceral pleura surrounds the outside of the lung. The parietal pleura lines the inside of the chest wall and extends over the diaphragm.
Again, it's an average, but the average date costs just less than $45. This is across the board, though; predictably, when broken down by gender, men spent a lot more than women per date. Women spent an average of about $34.29 per date, while men spent an average of about $65.69, they reported. There were also the penny-pinchers â about 20 percent said they spent an average of zero dollars per date, and a whopping 19 people, or almost 2 percent, said they spent more than $500 per date before marriage.
The most surprising finding was that most of the non-single respondents met their future partner in the real world, and not through one of the numerous dating apps or websites that many flock to. In fact, less than 10 percent of those surveyed met their significant other through a dating website or app. Most respondents, a whopping 38.6 percent, first met their partner through mutual friends. The second most popular way to meet a future boyfriend or girlfriend, according to 22 percent of respondents, is though a social setting.