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.
This gap between the two cells is called a synapse. Impulses are carried across a synapse by chemical messengers called neurotransmitters. Approximately 30 different neurotransmitters have been identified, but they all do one of two things: Stimulate the action potential in the next neuron cell.Speed up the impulse.Inhibit the action potential in the next neuron.mpulses move from one nerve cell to another because of a difference in electrical action potential caused by ions inside and outside the cell. The cell membrane is selectively permeable to potassium ions, K + , and highly impermeable to sodium ions, Na + .