Biopsychology Flashcards
(43 cards)
CNS
Brain and spinal cord
Peripheral NS
Sends info from outside world to CNS and transmits info from CNS to muscles and glands
Somatic NS
Transmits info from receptor cells in sense organs to
Autonomic NS
Transmits info to and from internal bodily organs, an involuntary system, divides into sympathetic and parasympathetic
Parasympathetic
Slows bodily functions
Sympathetic
Speeds bodily functions
Sensory neurons
Transmits messages from peripheral NS to CNS
Relay neurons
Connect sensory neurons to motor neurons and other relay neurons
Motor neurons
Connect CNS to muscles and glands
Excitation
When receptor stimulation results in an increase in the positive charge of the postsynaptic neuron, increasing the likelihood of an impulse in the postsynaptic neuron
Inhibition
When receptor stimulation results in an increase in the negative charge of the postsynaptic neuron, decreasing the likelihood of an impulse in the postsynaptic neuron
Summation
The addition of positive and negative postsynaptic potentials
Endocrine system
A messaging system that secretes hormones which are required to regulate bodily functions and provide chemical system for communication
What does thyroxine do?
Increase metabolic rates, in turn affecting growth
What does pituitary gland do?
Produces growth hormone for puberty which makes people sexually mature
What do ovaries release?
Oestrogen for men. cycle
What does the pituitary gland release into the bloodstream during fight or flight?
ACTH
Lateralisation meaning
Each side of body controlled by opposite hemisphere
Broca’s area
Speech production
Wernicke’s area
Language comprehension
Synaptic pruning
Connections we don’t lose are lost
In functional recovery, a function may be recovered in the ….. area in the other hemisphere
Homologous
Axonal sprouting
Growth of new nerve endings which connect undamaged neurons to form new pathways
Denervation sensitivity
Undamaged neurons surrounding damage become more sensitive to compensate for the loss of neurons in the area
