Psych Sem 1 Final Study CH. 2 Flashcards
A layer of fatty tissue that speeds up neural impulses and covers the axon of some neurons is called what
Myelin sheath
A neuron’s reaction of either firing or not firing is called a what
all are none response
what are the two major divisions of the nervous system
Central and peripheral nervous system
Chemical messengers released into the junctions between neurons are called what
neurotransmitters
what is the endocrine system
The bodies slow chemical communication system; set of glands that secrete hormones into the blood stream
what is the master gland of the endocrine system
pituitary gland
The …… are two lima bean sized neural clusters in the limbic system and are linked to emotion. What happens when this is stimulated by electricity or removed?
amygdala, if stimulated the organism becomes more aggressive and if removed the organism cowards away in fear
what is plasticity and why is it so important
it’s of the brains ability to change which is important for children connecting new neural pathways and it is also important for us to form new connections between different things we have learned our experience
during a sleep stage fast and jerking movements of the eyes are specially likely to be associated with what
energetic brain activity
what is the function of dendrites
they receive messages and conduct of them toward the cell body
it the myelin sheath deteriorates what medical disorder takes place
MS multiple sclerosis
