The Neuron
The brain’s communicator
Neuron
Who introduced the concept of natural selection
Charles Darwin
drugs that reduce neural activity and slow body functions
Depressants
What nervous system is in charge of voluntary movements
Somatic Nervous system
___ and its derivatives; they depress neural activity, temporarily lessening pain and anxiety
Opioids
What is the role of the Myelin sheath
Speed up signal
traits that help organisms survive and reproduce get passed down
Natural selection
psychedelic (“mind-manifesting”) drugs that distort perceptions and evoke sensory images in the absence of sensory input
Hallucinogens
What nervous system is made up by the brain and spinal chord
Central Nervous System
a neurotransmitter’s reabsorption by the sending neuron
Reuptake
What is the path of a electrical signal using cell body, axon, dendrites
Dendrites -> cell body -> axon
What psychology is used for nature vs nurture
Evolutionary psychology
a molecule that increases a neurotransmitter’s action
Agonist
Sympathetic nervous system speeds up all processes except ___
Digestion
“morphine within”; natural, opioid-like neurotransmitters -linked to pain control and to pleasure
Endorphins
What type of neuron is sensory
afferent
the complete instructions for making an organism
Genome
the body’s “slow” chemical communication system; a set of glands and fat tissue that secrete hormones into the bloodstream
Endocrine system
You’re running and your eyes dilate. Why?
Sympathetic nervous system engages which dilates eyes to account for fight/flight
What type of drug is LSD
Hallucinogen
What is the roll of Glial Cells
support, nourish, and protect neurons; may also play a role in learning, thinking, and memory
What are eggs that are fertilized separately called
Dizygotic
drugs that depress central nervous system activist, reducing anxiety but impairing memory and judgment
Barbiturates
(within CNS) what process info between sensory inputs and motor outputs
Interneurons
drugs that excite neural activity and speed up body functions
Stimulants