Rosemary is added to dog food because it is an antioxidant and acts as a natural food preservative. Rosemary is a very common ingredient in dog food. We found rosemary or rosemary extract is in about 36% of all dog foods. It is much more common in dry foods-rosemary is present in 57% of all dry foods-most likely due to the fact that it is a natural preservative.
Interneurons connect sensory and motor neurons and interpret the impulse. Motor neurons carry impulses from the brain and spinal cord to muscles or glands. 1  Draw and label the structure of a typical nerve cell. 2  Explain how an impulse moves along a neural pathway.
Which nerve cells do what? Two sorts of cells make up the nervous system: neurons and glial cells. Neurons are the building blocks of the nervous system. Information travels along neurons as electrical signals â nerve impulses. These signals are passed to the next neuron in the chain at special sites known as synapses. There are ten times as many glial cells than neurons. Glial cells do not actually conduct electrical impulses, they look after the structure and maintenance of the brain. Enlarge Nerve and glial cells in the brain.