Anatomy Of The Nervous System Flashcards
What sections does the corpus callousum connect?
Communication between parts of the brain near right and left temples
What is the function of the massa intermedia? What is it?
Cerebral commissure that connects L R lobes of diencephalon
What are cerebral commissures?
Large tracts that span the longitudinal fissure
What are the six primary cortexes?
Motor, somatosensory, gustatory (taste), auditory, visual, olfactory
Where does the primary somatosensory cortex receive input?
From the ventral posterior nucleus and from other thalamic nuclei carrying somatosensory information
Where is the primary somatosensory cortex located?
Post central gyrus
Where does output from the primary somatosensory cortex go?
To the secondary somatosensory cortex
What is the somatosensory homunculus?
Cortical map that has regions of the face depicting the amount of inputs
Where is the secondary somatosensory cortex located?
Inferior to the primary in post central gyrus
Where does output from the secondary somatosensory cortex go?
To the posterior parietal association cortex
What is the meninges composed of?
Connective tissue layer covering all of the nervous system. Dura mater, arachnoid mater, pia mater
What is the function of the meninges?
Protect, give structure, contain cerebrospinal fluid
What are the layers of the brain?
Skull, dura mater, arachnoid space, subarachnoid space with arachnoid trabeculae, pia mater, brain
What is the function of the subarachnoid space?
To contain CSF and suspend the brain in place
What is the function of the pia mater?
Secretion and containment of CSF
What is the function of the frontal lobe?
Voluntary movement, expressive language, manage higher level of executive function (plan organize, initiative, self monitor, control responses to achieve goal)
What is the function of the parietal lobe?
Processing, interpreting,somatosensory input, inform about objects in external environment, proprioception (position movement of body parts), integrates sensory input into a coordinate system to represent the world