Tuba section in a British style brass band. Tubas are found in various pitches, most commonly in F, E â­ , C, or B â­ . The main tube of a B â­ tuba is approximately 18 feet (5.5 m) long, while that of a C tuba is 16 feet (4.9 m), of an E â­ tuba 13 feet (4.0 m), and of an F tuba 12 feet (3.7 m). The instrument has a conical bore, meaning the bore diameter increases as a function of the tubing length from the mouthpiece to the bell.
The total body water is divided into intracellular and extracellular fluids. Plasma is considered __.
The intracellular, intravascular, and interstitial spaces are the major fluid compartments in the body. A third category of the extracellular fluid compartment is the transcellular compartment, which includes cerebrospinal fluid and fluid contained in body spaces such as the pleural cavity and joint spaces.