L3: Neuroscience Flashcards
Brain stem
Automatic functions that keep us alive
Cerebellum
Helps coordinate and balance
Attached to rear of brainstem
Thalamus
Receive info from senses and bring them to brain
Reticular formation
Nerve network that deals with arousal
Pons
Facial expressions and dreams
Acts as bridge from your lower to higher brain functions
Relaxation
Medulla
Controls heartbeat and breathing
Base of the brainstem
Limbic system
System that deals with fear, aggression, emotion, food, sex drive
Amygdala
Linked to emotions: dear, agression, anger
Hypothalamus
Homeostasis in appetite, thirst, emotions, temperature, and etc…
Works with pituitary gland to secrete hormones
reward center
Axon
sends messages out of a neuron to another neuron through Axon Terminal
Axon terminal
Releases the messages released by axon
Synapse
Space between neurons where neurotransmitters are
Myelin sheath
allows transmission of information to be faster
Cell body
decision maker of neuron
Dendrites
receive messages from other neurons
What happens during depolarization
when positive ions are in and passes its threshold.
All-or-none response
Neuron either fires or doesn’t; same intensity when does
Dopamine
learning, attention
lack = schizophrenia
Serotonin
Mood and food
lack = depression
Norepinephrine/Epinephrine
Alertness/arousal, adrenaline
lack = depression
Gaba
inhibitory (slows body down
Glutamate
Excitatory (speeds body up)
excess = seizures, migraines
Endorphins
pain and pleasure
lack = pain excess = pleasure
