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.
A neuron possesses a cell body (Often Called the soma), dendrites, and an axon. The dendrites are constituted by branches similar to those of a tree. The complexity affects the dendritic tree in the number of signals received by the neuron itself.nside there is another structure called nucleolus. The nucleolus is a region of the cell nucleus responsible for the synthesis of ribosomal RNA (rRNA). The nucleolus is not an organelle but a dense region of genetic material and protein.