a chemical molecule that carries the nerve impulse across a synapse from one neuron to another
a neurotransmitter that controls happiness and mood. low levels can cause depression.
a neurotransmitter that controls ability to experience pleasure. associated with drug addiction.
left and right hemispheres that control voluntary activities
controls motion and coordination, higher level thinking, complex social issues
first part of brain stem that controls visceral actions
relays info to parts of brain
regulates hunger, thirst, fatigue, anger, body temp
connects left and right hemispheres, allows communication between them
the point of communication between two neurons
area at back of brain that processes visual info, puts together the picture that we see
outer 2-4 mm, complex brain functions, memory, attention, awareness, thinking, language, conciousness
decision making, reasoning, impulse control
processes fear, agression, emotional gut reactions, judgement, decision making
learning, memory, storing info
the transmission route a certain impulse takes
substance that coats axons along commonly used neural pathways, helping to speed transmission
the process of coating the axon with myelin
controls hormones (endocrine system)
located below frontal lobes, processes smell info
cell body and processing centers
axon and synapse
controls vision, color recognition
rods and cones
sees black and white, acuity of image
blind spot created by...
octopi and squid
eyes with no blind spots
interpret shape of molecule
period of overproduction of gray matter in frontal cortex and cerebrum
period of pruning and mylenization, use it or lose it
vulnerable to addiction, poor decision making, impulsive, alcohol has greater impact on learning and memory and possible impact on brain development into adulthood
exercise brain with diverse activities, avoid alcohol tobacco drugs, avoid concussions, 8-9.5 hours of sleep, nutrition (omega 3 fatty acids in seafood)
peanuts, potatoes, eggs, grains
eggs, liver, soybeans
beats, soybeans, almonds, eggs, meat, grains
eggs, meat, bananas, yogurt, cheese
milk, meat, fish, legumes
collect info from internal and external environments, process info, respond
peripheral nervous system
nerves and sensory cells, collect info
central nervous system
spinal cord and brain, process info, respond
sodium and potassium
electrolytes critical for functioning
amygdala, hippocampus, emotions, behavior, memory, pleasure
chemo (taste and smell), photo (eyes), mechano, thermo, pain
somatic nervous system
under voluntary control, reflex arc processing can happen in spinal cord
autonomic nervous system
involuntary, sympathetic and parasympathetic
sympathetic nervous system
stress response, preps body for intense activities, blood pressure and sugar up, shuts down unneccesary processes
parasympathetic nervous system
opposite of sympathetic, blood pressure and sugar down, reactivate processes, rest response
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