CSN And Motor System Flashcards
Locus ceruleus
In the reticular activating system : start of the mesolimbic dopamine pathway
Olfactory transduction
Odorant molecules binding: G-protein activation : activation of adenyl cyclase : increase of cAMP: opening of ion channels
Locations of 2 types of memory
Declarative memory:
Short term : hippocampus and other temporal lobe structures
Long term (after consolidation): areas of the association cortex
Procedural memory:
Short term: widely spread
Long term: basal nuclei, cerebellum, premotor complex
Everything you know on language
90% left hemisphere
Aphasia: language deficit
Articulation aphasia : Broca’s area
Comprehension aphasia: Wernicke’s area
Two types of motor behavior
Voluntary
Reflexive: all the time, even just to stay stand up
3 types of spinal reflexes
Withdrawal reflexes : protects limbs from injury
Stretch reflexes: controls muscle length
Inverse stretch reflexes: controls muscle tension
Pain and temperature sensory input?
Anterolateral column
Types of afférents in muscle spindles
II (secondary): gives info about static length of the muscle (nuclear chain fibers)
Ia: signal dynamic changes in muscle length (and some static length) (nuclear bag fibers)
Muscle tone
Résistance au stretch
Basal nuclei
Needed to determine the specific sequences of movements needed to accomplish a desired action
Corps calleux
Corpus callosum
Fourth ventricule
Between brain stem and cerebellum
Foramen
Between lateral and third: foramen de Monro
Third and fourth : cerebral aqueduc (midbrain)
Fourth to outside: foramen de Lushka and Magendie
Feet that generate space in subarachnoid space
Trabeculae
2 vertebral arteries form:
Basilar artery
2 laws of perception
Law of specific nerve energies
Law of projection
Hyperalgesia
Lower threshold for pain ( augmentation de la sensibilité après un dommage)
Hydrocephalus
Accumulation of CSL in the cortex ( communicating or non$communicating)
Analgesia: d’où vient l’info
Descending pathways starting from the brain stem. Inhibits the 2nd order neuron. But also the presynaptic neuron with opiate NT (like morphine)
Lateral geniculate nucleus
Relay center for visual info before going into occipital lobe (but it’s after the optic chiasm)
Pinna
Cartilage de ton oreille
Quel nerf pour info auditive et vestibulaire?
8th cranial nerve
info d’une oreille va dans les deux primary auditory cortex
Limbic system
Hippocampus : link entre mémoire et émotions
Amygdale: emotional responses
Olfactory bulb
Afferents of muscle lengths
Ia (primary): notices fast changes of muscle lengths and some static length
II (secondary): signal static muscle length
