BIOPSYCHOLOGY AS Flashcards
what is the nervous system split in to?
central nervous system (CNS) and peripheral nervous system (PNS)
what is the CNS split in to?
the brain and the spinal coard
what is the PNS split in to?
autonomic nervous system (ANS) and somatic nervous system SNS
What is the role of the nervous system?
relay messages from the brain to the rest of the body to instruct what to do
what is the function of the nervous system?
provides the biological bases of psychological experience
what is the function of the CNS?
life functions and psychological processes
what is the function of the spinal cord?
receives and transmits info to and from the brain
what is the function of the brain?
maintains life involved in higher functions and psychological processes
what is the function of PNS?
transmits info to and from the CNS
what is the function of ANS?
Transmits info to and from internal organs to sustain life processes
what is the function of SNS?
transmits info to and from the senses and to and from the CNS
what is the ANS split in to?
sympathetic NS and parasympathetic NS
what is the function of SNS?
generally increases bodily activities (fight or flight). The body’s alert system involved in preparing the body to respond to threats
what is the function of PNS?
generally maintains or decreases bodily activates. Sometimes referred to as the rest and digest system because of its role to relax the body by counteracting the effects of SNS
what are the body’s responses to the SNS?
Stops digestion aka butterflies, glucose is released for energy, stress, increased heart rate, hyper focus, anxiety, sweat and adrenaline
what are the body’s responses to the PNS?
heart rate decreases, breathing returns to normal, digestion starts and goes to normal, glucose is stored
what is first in the process of synaptic transition?
electrical impulses reaches the end of the neuron
what is second in the process of synaptic transition?
Neurotransmitters are released into the synaptic cleft
what is third in the process of synaptic transition?
Neurotransmitters diffuse across to the postsynaptic membrane
what is fourth in the process of synaptic transition?
Neurotransmitters bind to specific receptors
what is fifth in the process of synaptic transition?
Triggers an electrical impulse or cause a muscle contraction or a hormone to be secreted
what is last in the process of synaptic transition?
neurotransmitters are removed from the cleft by reuptake or an enzyme
what is the role of excitatory neurotransmitters?
increases the likelihood that an electrical impulse will be triggered in the postsynaptic neurone
what is the role of inhibitory neurotransmitters?
decreases the likelihood that an electrical impulse will be triggered in the postsynaptic neurone
what are examples of neurotransmitters?
noradrenalin, dopamine (depending on the location)
What are examples of inhibitory neurotransmitters?
serotonin, GABA, dopamine (depending on the location)