Nervous System and Behavior Flashcards
Relays sensory motor skills, regulates sleep and alertness
Thalamus
Bridge between nervous system and endocrine system
hypothalamus
Releases FSK, LH, ACTH, GH, TSH, Prolactin, endorphins
anterior pituitary
Releases oxytocin
posterior pituitary
Releases ADH
posterior pituitary
This region of the pituitary is controlled by neuronal input
Posterior
Resting potential of most neurons
-70 mV
AP threshold of most neurons
-55 mV
Efferent
Exiting the brain, motor neurons
Divisions of the peripheral nervous system
Somatic and autonomic
What is the enteric nervous system?
part of nervous system responsible for the GI tract
Primary neurotransmitter of the parasympathetic NS
Acetylcholine
Primary neurotransmitter of sympathetic NS
Norepinephrine
These compose the diencephalon
Thalamus, hypothalamus, pituitary
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Largest structure of the brain
Cerebrum
Divisions of the cerebrum
Cerebral cortex (the two hemispheres) and subcortical structures (olfactory bulb, hippocampus, basal ganglia)
Involved in detecting odor
olfactory bulb
Consolidates short term memory into long term memory
Hippocampus
Is involved in eye movement, voluntary movement, and procedural/ habitual learning
Basal Ganglia
Damage to this area is associated with parkinson’s disease
Substantia nigra, dopinomergic neurons are here and are damaged in parkinsons
This part of the midbrain is associated with hearing/auditor stimuli
Inferior colliculus
This part of the midbrain is associated with visual stimuli
Superior colliculus
What structures play a role in the limbic system?
Basal ganglia, olfactory bulbs, hypothalamus, hippocampus, amygdala, nucleus accubems
This lobe is associated with voluntary movement, planning, motivation, attention
Frontal lobe
This lobe is associated with sensory processing (but not vision)
Parietal lobe
This lobe is associated with vision
occipetal
Lobe associated with visual memories, language, making meaning of visual memories
Part of temporal lobe associated with language comprehension
Wernicke’s area
Part of frontal lobe associated with language production
Broca’s area
The broca’s and wernicke’s areas tend to be in which hemisphere?
Left b/c of lateralization. Most people are left hemisphere dominant.
Link between the PNS to the CNS
spinal cord
Number of vertebrae in the cervical region
7
Number of vertebrae in the thoracic area
12
Number of lumbar vertebrae
5
Number of sacral vertebrae
5
Areas of skin innervated by specific nerves
Dermatomes
Home of dopaminergic neurons that govern voluntary movement
Substantia nigra
Relay station for almost all info entering brain
Thalamus
Collection of dopaminergic neurons which play a role in goal-directed behavior.
Ventral tegmental area, critical in limbic system functioning
True or False: Sensory neurons enter the spine on the ventral side
False, doral
This technique relies on the measurement of electrical acitivity at various points along the surface of the brain. It cannot give you an image of the brain
EEG
This technique relies on the difference in hemoglobin oxygen saturation at various points in circulation
fMRI
This technique uses radiolabeled glucose
PET
This uses x-ray technology but gives you a 3d structure
CT
What parts make up the forebrain midbrain and hindbrain in development?
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