Heading down there in August too. I'm no expert, but having vacationed in the OBX the last 5 years, I know August is the early portion of hurricane season. Most season's typically peak in September, but August has its fair share (Katrina). Jamaica is just as vulnerable as any other island in that neighborhood.
Gas exchange in the lungs takes place in the tiny air sacs called alveoli in the lungs. The process of inhalation must inflate the alveoli, but it can only do so because of the presence of a surfactant fluid that coats the alveoli and lowers the surface tension of their walls.as exchange in the lungs takes place in the tiny air sacs called alveoli in the lungs. The process of inhalation must inflate the alveoli, but it can only do so because of the presence of a surfactant fluid that coats the alveoli and lowers the surface tension of their walls.
air sacs alveolar s's. allantoic sac the dilated portion of the allantois, becoming a part of the placenta in many mammals; it becomes the urachus in humans. alveolar sacs the spaces into which the alveolar ducts open distally, and with which the alveoli communicate.