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27 Cards in this Set

  • Front
  • Back
3 regions of brain
medical term
prosencephalon - forebrain
mesencephalon - midbrain
rhombencephalon - hindbrain
forebrain
proencephalon
Diencephalan -
Thalamus, Hypothalamus
Telencephalon -
Cerebrum
Cerebrum
Telencephalon
Cerebral Cortex
Basal nuclei
Mylenated White Matter
Axons Grey Matter
Cerebral Cortex
Large Complex
4 specialized lobe
frontal lobe
association cortex - conscious thought
Broca's area -
language comprehension
motor cortex- permits conscious control of skeletal muscles
parietal lobe
association cortex
somatosensory cortex - sensory areas of the skin
temporal lobe
auditory cortex
Wernicke's area
- speech
sense of smell
occipital lobe
visual cortex
corpus callosum
communication between left and right hemispheres
Thalamus
main input center for sensory information (except olfaction) going to the cerebral cortex and main output center for motor information leaving the cerebrum
Hypothalamus
master gland
critical for homeostasis; controls temperature, hunger thirst, sex, pleasure
Midbrain
mesencephalon
Reticular formation
Substantia Nigra
Ventral Tegmental Area
Ventral Tegmental Area
Packed with dopamine-releasing neurons
Amphetamines and cocaine bind to the same receptors that it activates
Substantia Nigra
Helps "smooth" out body movements (damage to the substantia nigra causes Parkinson's disease)
Reticular formation
Collects input from higher brain centers and passes it on to motor neurons
Involved in sleep and arousal
Hindbrain
rhombencephalon
Medulla oblongata
Cerebellum
Pons
Medulla oblongata
Regulates breathing
Regulates heartbeat
Regulates blood flow
Cerebellum
Coordinates and refines complex muscle movements
Pons
Connects higher brain regions, cerebellum, and spinal cord
Autonomic Nervous System
Sympathetic
Parasympathetic
Enteric
Sympathetic
– activated in “fight or flight” response
Heart beats faster
Liver converts glycogen to glucose
Digestion inhibited
Parasympathetic
promotes calming and return to self-maintenance
functions (“rest and digest”)
Decreases heart rate
Increases glycogen production
Enhances digestion
Enteric
controls activity of digestive tract
Somatic nervous system
carries signals to and from skeletal muscles and is mostly voluntary
Autonomic Nervous System
regulates internal environment by controlling smooth muscle, cardiac muscle, and organ function; is usually involuntary
Cranial nerves
originate in brain and terminate in organs of upper body
Spinal nerves
originate in spinal cord and extend to parts of body below the head