An otter's den is called a holt or couch. Male otters are called dogs, females are called bitches, and their offspring are called pups. The collective nouns for otters are bevy, family, lodge, romp (being descriptive of their often playful nature) or, when in water, raft.
An axon (from Greek á¼Î¾ÏÎ½ Ã¡xÅn, axis), is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body. Axons are also known as nerve fibers. The function of the axon is to transmit information to different neurons, muscles and glands.
An axon, at its most basic, is a tube-like structure that carries an electrical impulse from the cell body (or from another cell's dendrites) to the structures at opposite end of the neuronâaxon terminals, which can then pass the impulse to another neuron.