C2 [ I or T ] If you drain something, you remove the liquid from it, usually by pouring it away or allowing it to flow away, and if something drains, liquid flows away or out of it: 1  Drain the pasta thoroughly. 2  We drained the pond and filled it with fresh water. 3  Drain (off) any liquid that is left in the rice.
5. Mitochondrium-this is the part of the cell responsible for the supply of energy in the form of ATP (adenosine triphosphate). Neurons need an enormous amount of energy. The brain is one of the most metabolically active tissues in the body.In man, for example, the brain uses 40 ml of oxygen per minute.t is from here that the electrical firing known as an action potential usually occurs. 5. Nerve Ending (Presynaptic Terminals) Synapses are the junctions formed with other nerve cells where the presynaptic terminal of one cell comes into 'contact' with the postsynaptic membrane of another.
1 Neurons contain the same cellular components as other body cells. 2  The central cell body is the largest part of a neuron and contains the neuron's nucleus, associated cytoplasm, and other cell structures. 3  The cell body produces proteins needed for the construction of other parts of the neuron. The central cell body is the largest part of a neuron and contains the neuron's nucleus, associated cytoplasm, and other cell structures. 2  The cell body produces proteins needed for the construction of other parts of the neuron.