Answer:
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Answer:
Shi Huangdi
Explanation:
Shi Huangdi changed measurements to be the same in all of China. He used the system used in his former kingdom. Later in his rule he constructed three major highways running northeast, southeast, and north and south.
The total amount of roads built by Qin Shi Huangdi was approximately 4,250miles. Canals such as the famous Lingqu Canal was built by The First Emperor, the use of the canals are also very similar to the purpose of the roads. It was also used as an encouragement towards trading, since canals were able to bring people to more trading areas.
Answer:
Both epinephrine and norepinephrine are released by the adrenal medulla and they circulate a neurotransmitters and hormones throughout the nervous system and circulatory system. Kara's adrenal medulla is releasing ephinephrine and norepinephrine to prepare her for fight or flight.
Explanation:
Epinephrine and norepinephrine are neurotransmitters and they belong to a class of compounds called catecholamines. While chemically both these neurotransmitters are very similar, they have different functions. Norepinephrine has an effect only on alpha receptors in your arteries, while epinephrine works of both alpha and beta receptors. Beta receptors are in the heart, lungs, and the arteries of the muscles in our skeletal system as well. Both compounds also serve as hormones in the body and having either an overabundance or a deficiency of these compounds can affect your health. Epinephrine can increase your heart rate and smooth out or relax the muscles of your breathing passages so you breathe better when experiencing a fight or flight response. Norepinephrine can constrict your blood vessels and increase blood pressure getting your body ready for action. It is also used to treat very low blood pressure.
