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How Your Body Gets Ready to Run or Fight!

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How Your Body Gets Ready to Run or Fight!

The nervous system and endocrine system work together to regulate body functions and responses, with particular emphasis on the fight or flight mechanism and stress responses. The endocrine and nervous system interaction plays a crucial role in maintaining homeostasis and responding to environmental challenges.

Key aspects include:

  • The central and peripheral nervous systems coordinate voluntary and involuntary functions
  • The sympathetic nervous system arouses energy expenditure while the parasympathetic system promotes energy conservation
  • The endocrine system's glands secrete hormones that work alongside neural signals
  • The fight or flight physiological response changes prepare the body to deal with threats
  • Brain imaging techniques help understand neural activity and brain function

1/24/2023

143

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 2: Endocrine System Overview

The endocrine system works in close coordination with the nervous system through various glands distributed throughout the body. These include the hypothalamus, pituitary, pineal, thyroid, thymus, and adrenal glands, as well as other hormone-producing organs.

Highlight: The interaction between the nervous and endocrine systems is crucial for proper bodily function and regulation.

Definition: The endocrine system consists of glands that secrete hormones directly into the bloodstream.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 9: Speed of Response

The sympathetic nervous system's rapid response capability makes it more suitable than the endocrine system for immediate threat response. Neural impulses travel faster than hormones in the bloodstream.

Example: Neural signals can reach their targets in milliseconds, while hormones may take seconds or minutes.

Highlight: The speed of neural transmission is crucial for survival situations.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 14: CT Scanning

Computerized Axial Tomography (CT or CAT scan) provides detailed images of brain structure through multiple X-ray images.

Vocabulary: CT scan - A medical imaging technique using X-rays and computer processing.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 7: Physiological Changes During Fight or Flight

During the fight or flight response, multiple physiological changes occur simultaneously. These include increased heart rate, dilated pupils, decreased digestion, and elevated blood pressure.

Example: When threatened, the body redirects blood flow from digestive processes to muscles needed for fighting or fleeing.

Highlight: Each physiological change serves a specific purpose in preparing the body for action.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 4: The Pineal Gland

The pineal gland is responsible for producing melatonin, which regulates the body's sleep-wake cycle. This small gland plays a crucial role in maintaining circadian rhythms.

Definition: Melatonin is a hormone that helps regulate sleep patterns and circadian rhythms.

Highlight: The pineal gland's function demonstrates how hormones can influence behavior and physiological states.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 1: Structure of the Nervous System

The nervous system consists of two main divisions: the central nervous system (CNS) and the peripheral nervous system. The CNS comprises the brain and spinal cord, while the peripheral system carries messages to and from the CNS. The peripheral nervous system further divides into the somatic system (controlling voluntary muscles) and the autonomic system (managing involuntary functions).

Definition: The autonomic nervous system has two branches - the sympathetic system that arouses the body and the parasympathetic system that promotes calming and energy conservation.

Highlight: The sympathetic and parasympathetic systems work in opposition to maintain bodily balance.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 10: Recovery Phase

After the threat passes, the parasympathetic nervous system activates to restore calm and normal bodily functions. This system promotes "rest and digest" activities.

Definition: The parasympathetic nervous system is responsible for returning the body to its normal state.

Highlight: The balance between sympathetic and parasympathetic systems is crucial for health.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 3: The Pituitary Gland

The pituitary gland, often called the master gland, plays a central role in the endocrine system. Located near the hypothalamus, it secretes hormones that activate other glands and produces growth hormone (GH).

Vocabulary: Growth hormone (GH) - A hormone essential for growth and development.

Highlight: The pituitary's position as the master gland makes it crucial for coordinating hormonal responses.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 12: Electroencephalogram (EEG)

The EEG uses electrodes to measure and record the brain's electrical activity, providing insights into neural functioning.

Vocabulary: Electroencephalogram (EEG) - A technique for recording brain electrical activity.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

View

Page 6: Fight or Flight Response

The fight or flight response represents an automatic and adaptive physiological reaction to perceived threats. This response involves both the nervous and endocrine systems working in concert.

Definition: The fight or flight response is an automatic survival mechanism that prepares the body for action.

Highlight: This response demonstrates the integration of multiple body systems for survival.

Can't find what you're looking for? Explore other subjects.

Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

Ranked #1 Education App

Download in

Google Play

Download in

App Store

Knowunity is the # 1 ranked education app in five European countries

4.9+

Average App Rating

13 M

Students use Knowunity

#1

In Education App Charts in 12 Countries

950 K+

Students uploaded study notes

Still not sure? Look at what your fellow peers are saying...

iOS User

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

Stefan S, iOS User

The application is very simple and well designed. So far I have found what I was looking for :D

SuSSan, iOS User

Love this App ❤️, I use it basically all the time whenever I'm studying

How Your Body Gets Ready to Run or Fight!

The nervous system and endocrine system work together to regulate body functions and responses, with particular emphasis on the fight or flight mechanism and stress responses. The endocrine and nervous system interaction plays a crucial role in maintaining homeostasis and responding to environmental challenges.

Key aspects include:

  • The central and peripheral nervous systems coordinate voluntary and involuntary functions
  • The sympathetic nervous system arouses energy expenditure while the parasympathetic system promotes energy conservation
  • The endocrine system's glands secrete hormones that work alongside neural signals
  • The fight or flight physiological response changes prepare the body to deal with threats
  • Brain imaging techniques help understand neural activity and brain function

1/24/2023

143

 

Psychology

5

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 2: Endocrine System Overview

The endocrine system works in close coordination with the nervous system through various glands distributed throughout the body. These include the hypothalamus, pituitary, pineal, thyroid, thymus, and adrenal glands, as well as other hormone-producing organs.

Highlight: The interaction between the nervous and endocrine systems is crucial for proper bodily function and regulation.

Definition: The endocrine system consists of glands that secrete hormones directly into the bloodstream.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 9: Speed of Response

The sympathetic nervous system's rapid response capability makes it more suitable than the endocrine system for immediate threat response. Neural impulses travel faster than hormones in the bloodstream.

Example: Neural signals can reach their targets in milliseconds, while hormones may take seconds or minutes.

Highlight: The speed of neural transmission is crucial for survival situations.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 14: CT Scanning

Computerized Axial Tomography (CT or CAT scan) provides detailed images of brain structure through multiple X-ray images.

Vocabulary: CT scan - A medical imaging technique using X-rays and computer processing.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 7: Physiological Changes During Fight or Flight

During the fight or flight response, multiple physiological changes occur simultaneously. These include increased heart rate, dilated pupils, decreased digestion, and elevated blood pressure.

Example: When threatened, the body redirects blood flow from digestive processes to muscles needed for fighting or fleeing.

Highlight: Each physiological change serves a specific purpose in preparing the body for action.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 4: The Pineal Gland

The pineal gland is responsible for producing melatonin, which regulates the body's sleep-wake cycle. This small gland plays a crucial role in maintaining circadian rhythms.

Definition: Melatonin is a hormone that helps regulate sleep patterns and circadian rhythms.

Highlight: The pineal gland's function demonstrates how hormones can influence behavior and physiological states.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 1: Structure of the Nervous System

The nervous system consists of two main divisions: the central nervous system (CNS) and the peripheral nervous system. The CNS comprises the brain and spinal cord, while the peripheral system carries messages to and from the CNS. The peripheral nervous system further divides into the somatic system (controlling voluntary muscles) and the autonomic system (managing involuntary functions).

Definition: The autonomic nervous system has two branches - the sympathetic system that arouses the body and the parasympathetic system that promotes calming and energy conservation.

Highlight: The sympathetic and parasympathetic systems work in opposition to maintain bodily balance.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 10: Recovery Phase

After the threat passes, the parasympathetic nervous system activates to restore calm and normal bodily functions. This system promotes "rest and digest" activities.

Definition: The parasympathetic nervous system is responsible for returning the body to its normal state.

Highlight: The balance between sympathetic and parasympathetic systems is crucial for health.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 3: The Pituitary Gland

The pituitary gland, often called the master gland, plays a central role in the endocrine system. Located near the hypothalamus, it secretes hormones that activate other glands and produces growth hormone (GH).

Vocabulary: Growth hormone (GH) - A hormone essential for growth and development.

Highlight: The pituitary's position as the master gland makes it crucial for coordinating hormonal responses.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 12: Electroencephalogram (EEG)

The EEG uses electrodes to measure and record the brain's electrical activity, providing insights into neural functioning.

Vocabulary: Electroencephalogram (EEG) - A technique for recording brain electrical activity.

Central
nervous system
(CNS)
Brain
Spinal cord
Connects brain
and peripheral
nervous system
Nervous system
Peripheral
nervous system
Carries

Page 6: Fight or Flight Response

The fight or flight response represents an automatic and adaptive physiological reaction to perceived threats. This response involves both the nervous and endocrine systems working in concert.

Definition: The fight or flight response is an automatic survival mechanism that prepares the body for action.

Highlight: This response demonstrates the integration of multiple body systems for survival.

Can't find what you're looking for? Explore other subjects.

Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

Ranked #1 Education App

Download in

Google Play

Download in

App Store

Knowunity is the # 1 ranked education app in five European countries

4.9+

Average App Rating

13 M

Students use Knowunity

#1

In Education App Charts in 12 Countries

950 K+

Students uploaded study notes

Still not sure? Look at what your fellow peers are saying...

iOS User

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

Stefan S, iOS User

The application is very simple and well designed. So far I have found what I was looking for :D

SuSSan, iOS User

Love this App ❤️, I use it basically all the time whenever I'm studying