Science Quiz / Brain Terms

Random Science or Definition Quiz
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DefinitionTerm
Fatty substance which protects the axon
In charge of metabolism and genetic material
Largest part of occipital lobe
Sodium channels become more resistant to sodium ions and the neuron does not fire
Comprised of spinal cord, brain stem, and cerebellum
A signal which will not fire a neuron
A principle that states a neuron either fires or it doesn't
Momentary hyperpolarization when sodium ions stop flowing into the neuron
Group of single strand amino acids
Looks at the transmission of genes from parents to offspring
When a neuron fires
Space where axon is exposed; action potentials can move through neuron
Monamine important for arousal and vigilance
Network of neurons in brain stem
Allows for chemical symbols to pass through neuron
Neurons that communicate in short or local distances
Lobe in charge of sense of touch and spacial layout
Brain structure that associates things with emotions and processes emotional information
A rope of neural tissue inside the hollows of vertebrae
Lobe which is important for processing auditory information and memories
Specialized protein molecules on neuron
Region at front of cerebral cortex concerned with planning and movement
Produces myelin
Lobe almost exclusive for vision
The first part of the neuron to receive signals
Toxin that mimics ACh
When an enzyme destroys transmitter substance in synaptic cleft
DefinitionTerm
Peptides involved in natural pain reduction and reward
Neurotransmitters that bind to own receptors to regulate release of neurotransmitters
The electrical charge of a neuron when it is not active
When neuron goes back to resting membrane potential; only strong signals can make it fire
Monoamine needed for emotional states, impulse control, and dreaming
A chemical substance which carries signals across synaptic cleft
Monoamine involved in reward, motivation, and motor control
Signals that go from body to brain
Amino acid which is the primary inhibitory signal in the nervous system
Part of the brain essential for coordination and balance
Monoamine known as adrenaline
A signal which will fire a neuron
A system of subcortical structures important for movement
Responsible for motor control at junction between nerves and muscles. Involved in dreaming, memory, sleeping and learning
Release chemicals into the synapse to send to another neuron
Detects information from physical world and passes it on
Directs muscles to contract or relax thus causing movement
Looks at overall amount of differences between individuals in a population
A rush of sodium ions into the neuron causing the neuron to fire
Gateway to the brain which receives almost all incoming sensory information
Process where neurotransmitters return to original vesicles
Signals that go from brain to body
Collects information from thousands of neurons
Brain structure important for formation of certain types of memory
Houses basic functions: breathing, swallowing, vomiting, urination, orgasm
A small brain structure in the limbic system vital for temperature regulation, emotion, sexual behavior, and motivation
Outer layer of brain tissue which forms the surface of the brain

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