Biopsychology 1: Flashcards
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Cns consists of:
brains and spinal cord
CNS recieves info how?
From the senses and controls the body’s responses
Peripheral nervous system is located…
outside of the spinal cord
peripheral nervous system consists of:
nerve cells leading to and from the CNS connects the CNS to the outside world.
somatic nervous system carries :
sensory and motor information to and from the CNS controls the voluntary movements
The autonomic nervous system governs
involuntary activity of internal systems e.g. heartrate
The autonomic nervous system is in control of
the parasympathic nervous system and teh sympathetic nervous system
The PNS controls:
Fight or flight
The SNS controls
Rest and digest
The CNS has two main functions whcih are:
regulation of behaviour, regulation of body physiological processes
Role of teh occipital lobe ?
process visual info
frontal lobe’s role?
involved in thouhgt adn speech production and learning
Role of parietal lobe?
processes sensory information such as touch, temp and pain
Role of temporal lobe?
hearing and memory
What occurs when teh ANS causes arousal and energy?
Increased heart rate, reduced stomach activity, pupils dilate, expends energy ‘flight or fight response’
What occurs when teh ANS causes reductionn in arousal?
Decreased heart rate, conserves energy , increased stomah activity, ‘rest and digest’
What are neurons?
cells which make up the nervous system, they conduct an electical impulse
What are dendrites
receives signals from other neurons or sensory receptors
what are cell bodies
controls the centre of teh neuron
What is an axon?
conducts nerve impulses away from the cell body towards other neurons
Role of motor neurons ?1
to carry motor comands from CNS to the skeletal muscles or glands aloowing for a control of movement and responses of internal systems.
where are motor neurons located/
in the CNS they projext axons out to directly or indirectly control muscles
What are relay neurons?
Within the CNS That connect different parts of the CNS amd allow for sensory and motor neurons to communicate with eachother
function of a relay neuron?
to carry signals between afferant (sensory) and efferent (motor) neurons
