Lab on Da Brain Flashcards
What type of nerve cord is a chordate
dorsal and tubular
What are the 3 bulges that the brain starts as
forebrain
midbrain
hindbrain
what does the forebrain develop into
cerebrum
and
Diencephalon (thalamus/hypo)
what does the midbrain develop into
mesencephalon?
what does the hindbrain develop into
cerbellum
pons
medulla oblongata
what is the cerebrum responsible for
consciousness, memories, reasoning, etc
what does the longitudinal fissure do
its a deep grovve that splits the brain into the right and left cerebral hemispheres
what is the right hemisphere primarily for
the right NOW,
spacially pictures
what is the left hemispere primarily for
past/future
language, words, speech
what are gyri
lumps/hills
what are sulci
indentations/ grooves
what are the main two sulci
central sulcus and lateral sulcus
what is the function of the frontal lobe
thought processing, memory, motor control of speech
what is the precentral gyrus in
the frontal lobe
what does the precentral gyrus do
it is a primary motor cortex that initiates skeletal muscle activity
parietal lobe main function
to make sense of senses,
puts incoming info together for a fuller experience
where is the postcentral gyrus
in the parietal lobe
what does the postcentral gyrus do
is the primary sensroy association area
what are the 4 lobes
frontal, parietal, occipital, temporal
occipital lobe function
visual processsing
temperal lobe function
auditory procession
what is in the corpus callosum
myelinated axons
what does the corpus callosum do
it allows relay between the 2 hemispheres
what does grey matter have vs white matter
grey has cell bodies
white has myelinated axons
what are the two things associated with grey matter that we talked about
cerebral cortex
and
basal nuclei
cerebral cortex vs basal nuclei
cerebral cortex is superficial and conscious
basal nuclei is deep and subsonscious
what are the 3 types of fibers in white matter
association
commissural
projection
association fibers fxn
communication w/i a hemisphere
commissural fibers fxn
communication btw hemispheres
projection fibers fxn
communication btw cerebrum and other brain parts
what is in the diencphalon
thalamus and
hypothalamus
is the thalamus white or grey matter
white
thalamus functions
relay btwn brain stem and cerebrum
sorts sensroy info
hypothalamus functions
autonomic fxns like (food intake, water intake, and body temp regulation)
and
Modulates pituitary function
what is the pituitary gland
the master gland of the endocrine system
what does the mid brain do
relays info between brain stem and thalamus
coordinates smoothe skeletal muscle activity
what is the superior colliculus do
visual reflexes
what does the infereior colliculus do
auditory reflexes
what are the superirr and inferior colliculuss apart of
the mid brain
what are the main parts of the brain stem
mid brain , pons, medulla oblongata
what is in the metencephalon
pons and cerebellum
pons function
to relay between brain step and cerebellum
to relay between midbrain and medulla oblongata
cerebellum function
coordination
balance
equilibrium
medulla oblongata function
relay between spinal cord
decussation
visceral autonomic center
what is decussation
the crossin gover of axons from right to left sides
what is the visceral autonomic center include
cardiac center
respitroy center
vasomotor center
