nervous system Flashcards
flow of CSF
lateral ventricles > interventricular foramina > 3rd ventricle > cerebral aquaduct > 4th ventricle > lateral and median apertures > subarachnoid space> arachnoid villi> blood of superior sagittal sinus
longitudinal fissure
Separates the right and left cerebral hemispheres
Transverse fissure
Separates the cerebrum from the cerebellum
Parieto-occipital fissure
Separates the parietal lobes and occipital lobes
Lateral sulcus (fissure)
Separates the temporal lobes and parietal lobes
central sulcus
Separates the parietal lobes from the frontal
lobes; is a deep sulcus
Cerebral Cortex
Site of perception, memory
learning and communication
Place where voluntary
movements are initiated
Place where sensation is
perceived and localized
Cerebral white matter
Connects areas within cerebral
hemispheres, connects
cerebral hemispheres to each
other and connects cerebral
hemispheres to other brain
areas
Basal ganglia (cerebral
nuclei)
The amygdala is part of the
Limbic system
They start, stop and monitor
movements initiated in the
cortex and regulate the
intensity of these movements
they may be involved in
regulating attention and may
be involved in cognition
Primary motor area
Conscious control of skeletal muscle activity
Impulses are carried in the spinal cord by pyramidal tracts (also called corticospinal tacts) which cross (decussate) in the medulla
what makes CSF?
choroid plexuses
Conus medullaris
tapered
end of the spinal cord
filum terminale
fibrous extension
of the pia mater that anchors the
cord to the coccyx
denticulate ligaments
attach the cord laterally to the walls of the vertebral column
