Capillaries. Capillaries, the smallest and most numerous of the blood vessels, form the connection between the vessels that carry blood away from the heart (arteries) and the vessels that return blood to the heart (veins).The primary function of capillaries is the exchange of materials between the blood and tissue cells.apillaries. Capillaries, the smallest and most numerous of the blood vessels, form the connection between the vessels that carry blood away from the heart (arteries) and the vessels that return blood to the heart (veins).
Class C Operator. Class C Operator of a UST facility is a person designated by the UST system owner who typically. controls the dispensing of fuel at the facility and is responsible for initial response to alarms, releases, spills, overfills or threats to the public or to the environment.
U.S.C.G - Course Descriptions. ( 1 OUPV) Operator of Uninspected Passenger Vessel of Less than 100 GRT (64 hours) - Captains of vessels carrying up to six passengers on a non-inspected vessel under 100 gross tons. Candidates must be at least 18 years old and in good physical and mental health.