Question

Sympathetic nervous system is stimulated by the hormone
A) Acetylcholine
B) Dopamine
C) Adrenaline
D) All of the above

Answer 1

Hint:The sympathetic nervous system is present when the body is present in some dangerous situation and is also present in the flight and fight situation needed by the body. The hormones rush to help in easing the body which is tensed due to stressful conditions.

Complete answer:
The autonomic nervous system includes the parasympathetic nervous system and sympathetic nervous system. The sympathetic nervous system is stimulated by the hormone adrenaline which is also known as epinephrine. Adrenaline is the hormone that is responsible for the fight and flight response in the body. This hormone is responsible for the body to feel relaxed when a tense situation arrives. It helps in increasing the blood flow to muscles and is also responsible for the dilation of the pupil as well as it increases the blood sugar level in the blood.

Adrenaline is produced in the medulla region of the central nervous system. This hormone triggers the fight and flight response in the body. In such conditions, the air passage dilates in order to provide more oxygen to the lungs. The blood vessels contract and blood are made to flow towards the lungs and heart more. It also nullifies the pain felt to our body and increases our senses in such conditions.

Hence, the correct answer is option ‘C’ i.e ‘adrenaline’.

Note:Excessive amounts of adrenaline in the body when there is no stressful condition that can lead to harmful effects on the health. If the amount of adrenaline released is not used then the person might feel dizziness, restlessness, and irritability. These symptoms appear as the extra amount of energy is not used by the body. Excessive amounts of adrenaline present in the body can be very harmful and can cause serious problems in the heart, nervous feeling, and insomnia.