Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
Heritability
|
A statistical estimate of the fraction of observed measure of the overall amount of difference among people in a population that is caused by differences in heredity.
|
|
Parts of the Neuron
|
dendrite
cell body axon synaptic terminals synapse |
|
Types of Neurons
|
sensory neurons
motor neurons interneurons |
|
sensory neurons
|
detect information from the physical world and pass that info along to the brain
|
|
motor neurons
|
one of the three types of nerons, these efferent neurons direct muscles to contract or relax, therby producing movement.
|
|
interneurons
|
these neurons communicate only with other neurons, typically within a specific brain region.
|
|
Action potential
|
The nueral impulse that passes along the axon and subsequently causes the release of chemicals from the terminal buttons.
|
|
Resting membrane potential
|
the electrical charge of a neuron when it is not active.
|
|
mylin sheath
|
increases the speed of transmission along the axon.
|
|
refactory period
|
neuron recharges
|
|
absolute
|
no impluse from stimulation
|
|
relative
|
impulse if stimulus is strong enough.
|
|
Events that end transmission
|
reuptake
enzyme deactivation autoreceptors |
|
reuptake
|
the process where the neurotransmitter is taken back into the presynaptic terminal buttons, thereby stopping its activity.
|
|
enzyme deactivation
|
the process whereby the nuerotransmitter is destryoed by an enzyme, thereby terminating its activity.
|