Here, oxygen travels from the tiny air sacs in the lungs, through the walls of the capillaries, into the blood. At the same time, carbon dioxide, a waste product of metabolism, passes from the blood into the air sacs. Carbon dioxide leaves the body when you exhale.he lungs provide a surface for gas exchange in mammals. Inside the lungs are the alveoli, in which oxygen dissolves into the blood. Is is basically a gas exchange.
Current Local Time: San Martin, California is in the Pacific Time Zone: The Current Time in San Martin, California is: Monday 1/15/2018 9:35 PM PST San Martin, California is in the Pacific Time Zone
Pacific Daylight Time (PDT ) = GMT-7. Pacific Daylight Time is the Pacific Time Zone of the United States of America (USA) and Canada. Pacific Standard Time (PST) is 8 hours behind Greenwich Mean Time (GMT-8). In most states in the USA and in most provinces in Canada, Daylight-Saving Time (DST) is observed. During DST PT or PDT is 7 hours behind Greenwich Mean Time (GMT-7).