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40 Cards in this Set
- Front
- Back
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motor neurons
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signals from the CNS to the muscles and tissues
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sensory neurons
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messages from the sense receptors to the CNS
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acetylcholine
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neurotransmitter for muscle contraction
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somatic nervous system
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aka skeletal nervous system
responsible for voluntary actions |
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interneurons
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connect motor and sensory neurons to CNS also make up the brain and spinal cord
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autonomic nervous system
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controls glands and involuntary life processes
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sympathetic nervous system
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triggers arousal (release of adrenaline, heartbeat etc)
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parasympathetic neervous system
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relaxes and calms the bosy (by releasing hormones etc)
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epinephrine/ norempinephrine
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aka adrenaline released by adrenal gland
fight or flight |
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reticular formation
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found in brainstem- controls muscle reflexes, breathing, pain perception, arousal
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EEG
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can see electrical waves in the brain
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corpus callosum
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connects right and left hemispheres
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motor cortex
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responsible for motor functions- depending on complexity certain parts of the body take up more of the motor cortex
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thalamus
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receives messages from senses (except smell) and sends it to the cortex
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glial cells
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protect and repair neurons
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PET scan
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uses radioactivity to monitor brain's glucose use
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cerebellum
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coordination and balance
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frontal lobe
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speaking, judgement planning, muscles movement
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association areas
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areas of the cortex that interpret sensory signals
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Limbic system
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center of the brain
regulates motivation, memory and emotions |
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parietal lobe
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touch and body position
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aphasia
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language disorder from damage to Broca's or Wernicke's area
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brainstem
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spine meets skull
survival functions |
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amygdala
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part of limbic system deals with emotion
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medulla
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breathing, muscle tone, circulation
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Pons
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arousal and focus while awake
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hippocampus
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fighting, fleeing, feeding , mating
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cerebral cortex
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outer layer of the cerebrum divided into 4 lobes
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Wernickes area
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LEFT side of the brain
comprehension of language |
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broca's area
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LEFT side of the brain
production of speech |
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occipital lobe
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visual processing
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temporal lobe
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auditory processing
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Right hemisphere
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visual spatial
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left hemisphere
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language
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prefrontal cortex
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rational thinking
personality |
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Somatosensory cortex
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touch perception part of parietal lobe
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visual cortex
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processing , understanding visual info
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auditory cortex
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processing sound
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Afferent
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neurons take msgs to spinal cord away from stimulus
division of somatic system |
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efferent
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neurons from CNS to PNS
part of somatic |
