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.
Labrador is the continental-mainland part of the Canadian province of Newfoundland and Labrador. It comprises the mainland portion of the province, separated from the island of Newfoundland by the Strait of Belle Isle. It is the largest and northernmost geographical region in Atlantic Canada. Labrador occupies the eastern part of the Labrador Peninsula. It is bordered to the west and the south by the Canadian province of Quebec. Labrador also shares a small land border with the Canadian territor