STRESS AND THE EFFECT ON THE BODY (Prt1) Flashcards
1
Q
Outline the structure of the Nervous system
A
- Nervous system
- CNS * Peripheral NS
- Somatic NS * Autonomic NS
- Para * S
2
Q
What is the central nervous system?
A
- Made up of the brain + spinal cord.
Controls most functions of the mind + body
3
Q
What is the peripheral nervous system?
A
- Consists of all the nerves OUTSIDE the brain + spinal cord.
- Has 2 subdivisions (somatic + autonomic nervous systems)
4
Q
What is the somatic nervous system?
A
- Controls voluntary movements and
- Transmits sensory information (to the CNS)
5
Q
What does the autonomic nervous system regulate?
A
- Involuntary bodily functions (heart beat, blood pressure)
6
Q
What 2 branches does the autonomic nervous system consist of?
A
- Sympathetic nervous system (prepares the body for stress and emergencies)
- Parasympathetic nervous system (promotes relaxation and recovery)
7
Q
What is the main function of sympathetic nervous system?
A
- perpare the body for stress and emergencies
8
Q
What is the sympathetic nervous system?
A
- The main function of the SNS is to prepare the body for stress and emergencies.
- Activating the fight or flight response.
- Thus it increases energy resources.
9
Q
What is the main role of the parasympathetic nervous system?
A
- Promote relaxation and recovery)
10
Q
What is the parasympathetic nervous system?
A
- Its main role is to promote relaxation and recovery, after a stressful event.
- It conserves energy and regulates involuntary functions.
- Counteracting the effects of the SNS.
11
Q
Name 4 effects of the active Sympathetic nervous system
A
- Faster heart beats
- Fast and shallow breathing
- Blood rushes away from the skins surface to skeletal muscles and major organs.
- Lots of hormones released (alerting you to fight/flight)
12
Q
Name 4 effects of the parasympathetic nervous system
A
- Slowing and rhymic heartbeat
- Full and slow breathing
- Increased bloodflow to brain, gut, lungs, skin
- Hormones lift mood and help u relax (to conserve energy)
