The atria receive blood from various parts of the body and pass it into the ventricles. The ventricles, in turn, pump blood to the lungs and to the remainder of the body. The right atrium, or right superior portion of the heart, is a thin-walled chamber receiving blood from all tissues except the lungs.
The Vestibule and Semicircular Canals. While the cochlea is involved in hearing, the other two parts of the inner ear's bony labyrinth, the vestibule and semicircular canals, are involved in keeping you upright-your sense of balance, that is. The vestibule detects changes in linear acceleration-that is to say, movement in one direction.
How do organisms maintain balances in pH? The body has a wide array of mechanisms to maintain homeostasis (or balance) in the blood and extracellular fluid. The most important way that the pH of the blood is kept relaâ¦tively constant is by buffers dissolved in the blood. Other organs help enhance the homeostatic function of the buffers. Kidneys and lungs also play important roles as well. (MORE)