chapter 3 Flashcards
basic things of nervous system.
Take information in from
environment
2. Control bodily responses
the 2 types of nervous system.
central nervous system and peripheral nervous system.
Voluntary reaction executed by muscles
somatic response
Voluntary reaction executed by muscles
somatic response
Autonomic response
- Involuntary executed by smooth muscles (ex.: blushing)
- Often emotionally linked
- Sympathetic
- Parasympathetic
Sympathetic response
Fight or flight response
• Increased heart rate, pupil
dilation, etc.
• GI tract inhibited
Parasympathetic activation
parasympathetic activation
• State of calm and rest
• Psychoactive drugs may create
either sympathetic
can Psychoactive drug create parasympathetic a sympathetic?
YES!
CENTRAL NERVOUS SYSTEM
Spinal cord and brain
• Psychoactive drugs do work
with brain neurons
the 3 structures of the brain.
hindbrain, midbrain, forebrain.
what are the parts of the hindbrain?
medulla, pons, cerebellum.
what is medulla responsible for?
blood pressure, breathing vomiting.
what is the medulla responsible for?
opioids, alcohol, barbiturates and depressants.
what does overdoes leads to?
asphyxiation
where is pons located?
Above medulla
