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Fear brings on a chain reaction that causes an outpouring of chemicals (hormones such as epinephrine, norepinephrine and many more) to cause symptoms such as a racing heart, sweaty palms, and hyperventilating among others. The hypothalamus (a part of the brain) initiates the fight-or-flight instinctive response.
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∙ 14y ago
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∙ 11y agoyou sympathetic system is activated because its the fight or flight. Your body will choose to either fight or flight. But besides that blood pressure rises and your heart beat will also change by increasing beats. I believe theres more behind all this, like hormones in blood that come into affect. But this is a good start.
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∙ 13y agoThere's a thing in the back of your head, the amygdala, which reacts to any sign of danger. It sends messages through your body, and your body reacts. More blood will go to your arms and legs, and less to your head. The reason for this is so that you van run or fight better in this situation. The downside however is that you cant think as well, you can possibly faint, and stuttering may occur.
This is also why people have problems with important exams and test, and the reason why training in a martial art lets you fight better (You get used to the idea of fighting, which wont cause you to panic).
When this happens your heart has to pump harder, and you can start to breath heavily. That's why trying to breath slowly helps putting you to ease.
This is all I know.
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∙ 14y agowhen watching a scary movie and something unexspected happens, we often "jump" this is because of our nervous system and hormone system (endocrine system) responding to our surroundings.
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∙ 10y agoThe body can respond in many ways when a person is frightened. The body can make them tense up or not think straight. They may screen and get scared as well.
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∙ 16y agoFight or Flight reaction.
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∙ 15y agoit screws eacgother
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∙ 15y agou die
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∙ 14y agothe brain
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What organ system does the brain belong too?
The nervous system The central nervous system
Which organ system coordinates the actions of the body?
That would be the nervous system, specifically the Central Nervous system, more commonly abbreviated to CNS.
What organ are involved in the nervous system?
Organs involved in the nervous system are - Brain 🧠 -> Central Nervous System (CNS) Spinal Cord -> Peripheral Nervous System Nerves -> Peripheral Nervous System
What is somatic nervous system?
The somatic nervous system transmits sensory messages to the central nervous system. The somatic nervous system is a sub group of the peripheral nervous system, it mainly controls voluntary muscles and sense organs.
What are two main divisions of the central nervous system?
The two main division of The Nervous System is divided into:Peripheral Nervous SystemCentral Nervous SystemThe Peripheral Nervous System is divided into two major parts:The somatic nervous system and the autonomic nervous system. While The Central Nervous System is divided into two parts: the brain and the spinal cord.
What gland directly stimulated by the nervous system to secrete hormones?
adrinal gland stimulates the nervous system
How does the parasympathetic nervous system affect constipation?
The parasympathetic nervous system allows for the relaxation of the GI muscles, which allows excretion. So in other words, constipation is more a product of the sympathetic nervous system, which if stimulated, will divert blood flow from the gut and delay defecation, causing constipation. If the parasympathetic nervous system is blocked or the sympathetic system stimulated, constipation can result.
What happens when the sympathetic division of the nervous system is stimulated?
it stimulates the gastrointestinal activity
Is adh stimulated by another hormone the nervous system or humoral factors?
humoral
What stimulates norepinphrine?
Norepinephrine as a hormone is stimulated by epinephrine and angiotensin II. Norepinephrine as a neurotransmitter is stimulated by electrical impulses from the sympathetic nervous system.
Which type of muscle can contract without being stimulated by the nervous system?
cardiac muscle tissue
How is a resting potential achieved in the nervous system?
The resting nerve cell is not being stimulated to send a nerve impulse
What two body systems interact to deliever hormones to the organs they affect?
Although some hormones are stimulated for release by humoral factors (nutrient and ion concentrations), most are either directly stimulated for release by the nervous system or indirectly stimulated for release though inhibitory or releasing hormones via the hypothalamus which is also part of the nervous system. The transport part of your question is that the endocrine system relies on the cardiovascular system to circulate the hormones throughout the body in order to reach their target organs.
What two body systems does the endocrine systems rely to generate and transport signals?
Although some hormones are stimulated for release by humoral factors (nutrient and ion concentrations), most are either directly stimulated for release by the nervous system or indirectly stimulated for release though inhibitory or releasing hormones via the hypothalamus which is also part of the nervous system. The transport part of your question is that the endocrine system relies on the cardiovascular system to circulate the hormones throughout the body in order to reach their target organs.
Vagal escape occurs when heart is stimulated by what?
Vagal escape occurs when the parasympathetic nervous system, specifically the vagus nerve, fails to regulate the heart rate and the heart muscle is instead stimulated by other mechanisms. This can happen in situations where there is a prolonged increase in sympathetic nerve activity or when there is a dysfunction in the parasympathetic nervous system.
What is watery discharge once during exercise?
when you stress your body ( Exercise), first parasympathetic nervous system get stimulated then sympathetic nervous system. Parasympathetic nervous system is responsible for body secretions ( watery nose, tears, stomach, mucus, saliva, etc). This is why first response of your exercise will be watery eyes and nose. After some time sympathetic nervous system kicks in and you become dry.
How does massage therapy affect the central nervous system?
It depends on the techniques that are used. Some techniques will stimulate the nervous system (such as some forms of tapotment). This is useful before an athletic event, because your muscles are stimulated. Some techniques act like a sedative, and are very relaxing (such as kneading, petrissage and effleurage). However, the effects of massage are more effective on the ANS (automatic nervous system) which houses the PNS and SNS. (parasympathetic nervous system, and sympathetic nervous system, respectivley).
