Muscle is excitable because it can be stimulated in order to cause contraction. Stimulation comes from the nervous system via electric signals/action potential that travels frâ¦om neuron through axon to muscle tissue.
Breed Profile--Written By Tiami Coleburg Breed: Labrador Retriever Owner Level: Suitable for some active and involved first time owners. Average Life Span: 12-14 years Average Weight: Male weights range 65-80 pounds. Female weights range 55-70 pounds. Average Weight Male height ranges from 22 1/2 to 24 1/2 inches high at the shoulder. Female height ranges from 21 1/2 to 23 1/2 inches at the shoulder. Color And Coat: True Labrador Retrievers only come in: black, shades of chocolate, and yellow.
The Labrador Retriever, also known as simply Labrador or Lab, is one of several kinds of retrievers, a type of gun dog. Labradors are athletic, playful, and the most popular breed of dog by registered ownership in Australia, Canada, New Zealand, the United Kingdom, and the United States (since 1991).he tail and coat are designated distinctive [or distinguishing] features of the Labrador by both the Kennel Club and AKC. The AKC adds that true Labrador Retriever temperament is as much a hallmark of the breed as the 'otter' tail..