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.
The axon is a single long tube that extends from the soma with multiple branchings at the end of it. The main function of the axon is to carry a message from the soma to the terminal buttons, which are the structures at the end of the axon that release the neurotransmitters into the synaptic cleft.