Unit 3 Flashcards
(36 cards)
neural crest cells form what
dorsal root ganglia
notochord forms what
nucleus pulposus
what does the telencephalon form
cerebral cortex
what does the diencephalon form
thalamus and hypothalamus
what does the mesencephalon form
midbrain
what does the metencephalon form
pons and cerebellum
what does the myelencephalon form
medulla
what do the superior colliculi do
orient to visual stimulus
what do the inferior colliculi do
startle reflex
what do the cerebellar peduncles do
carry info between cerebellum and brain stem
what do the dorsal columns do
carry tactile sensory information from the spinal cord to the brain
what is in the ventral part of the midbrain
cerebral peduncles
what is in the ventral part of the pons
basal portion (basal pontis) middle cerebellar peduncles
what is in the ventral part of the medulla
pyramid and olive
lobe of the cerebellum that puts cerebellum in contact w cerebral cortex
posterior lobe
lobe of the cerebellum that receives input from the spinal cord
anterior lobe
separation between anterior and posterior lobe
primary fissure
what does the vermis do
helps gear our balance system so we don’t fall over
the cerebellum does what
helps the body move in a coordinated fashion
what does the RAS (ascending portion of reticular formation) do
regulates level of consciousness and awareness (sleep wake cycle)
what does the descending portion of the reticular formation do
drives respiration
integrates cardiovascular reflexes
maintains muscle tone
boundaries of the 3rd ventricle
-between 2 thalamic lobes
-floor= hypothalamus
roof=corpus callosum
clusters of neurons with axons projecting to a common destination with a common function
nuclei
carry general/special sensation from incoming systems to cerebral cortex
relay nuclei
