Nervous System Brain Models Flashcards
(20 cards)
Cerebral Spinal fluid is produced in the
choroid plexuses with in the ventricles
cerebrum
The cerebrum is responsible for
the integration of complex
sensory and neural functions and
the initiation and coordination of
voluntary activity in the body.
the cerebrum is bigger in who
mammals
olfactory bulbs and tracts are bigger in who
both
greatly increase in size in reptiles, those that rely
heavily on their sense of smell having very
large bulbs and tracts relative to the other
parts of the brain.
Olfactory bulbs and tracts
are an extension
of the brain rather than true nerves.
pineal body function
regulating circadian
rhythms. Mainly relays sensory information between
parts of the brain and controls some functions of
the autonomic nervous system.
photoreception in
anamniotes, but tends become an endocrine organ in amniotes
diencephalon function
connects the nervous system with the endocrine system
and is involved with memory and emotion via the limbic
system
Limbic System
regulates expression of
emotion and is important for spatial and
short-term memory
the limbic system includes
the cerebral
cortex immediately encircling the corpus
callosum and brain stem, as well as
components of the thalamus,
hypothalamus, amygdala, hippocampus,
cingulate gyrus, and septum. The fornix
serves to connect all of the nuclei of the
limbic system
optic tectum
receives visual information directly from the
retina of the eye and relays this first to the
thalamus and then to the cerebrum
cerebellum
modifies and monitors but does not
initiate motor output. Important for maintaining
equilibrium and for refinement of motor actions
Medulla oblongata
operates
primarily at the reflex level. In
addition, the medulla houses the
primary nuclei of the cranial
nerves as well as the fibers of
many ascending and descending
tracks
do lamprey have a cerebellum
Small/no
cerebellum in
lamprey
trends of cerebellum in fish
In the group as a whole, see an increase
in cerebellum (coordinates input from
lateral line system) and optic tectum
trends in vertebrates
in bony fish, Increase in
cerebellum
and optic
tectum
in reptiles, olfactory bulb increase
in mammals, cerebrum increased
how do you know a lamprey is a lamprey brain
small.no cerebellum bc not active swimmer
how do you know a salmon brain is a salmon
increased optic tectum
how do you know a frog brain is a frog brain
how do you know a alligator brain is an alligator brain
how do you know a dog-brain is a dog brain
