Brain Vocab Flashcards
Arachnoid villi
Out pocket of the arachnoid into dural sinuses that allows for reabsorption of CSF into blood.
Arachnoid mater
Middle layer of the meninges names for the spider-web-like trabeculae that extend between it and the pia mater
Association fibers
Region of cortex connected to a primary sensory cortical area that further processes the information to generate more complex sensory perceptions
Basal nuclei
Nuclei of the cerebrum that are responsible for assessing cortical movement commands and comparing them with the general state of the individual through broad modulatory activity of dopamine neurons
Blood- brain barrier
Phycological barrier between the circulatory system and the CNS that establishes a privileged blood supply, restricting the flow of substances into the CNS
Brain
The large organ of the CNS composed of white and gray matter
Brain stem
Region of the adult brain that includes the midbrain, pons, and medulla oblongata and develops from the mesencephalon, metencephalon, and meyelincephalon, of the embryonic brain
Central canal
Hollow space within the spinal cord that is a remnant of the center of the neural tube
Cerebellum
Region of the adult brain connected primarily to the pons that developed from the metencephalon and is largely responsible for comparing information from the cerebrum to the with sensory feedback from the periphery through the spinal cord
Cerebral aqueduct
Connection of the ventricular system between the third and fourth ventricles located in the midbrain
Cerebral cortex
Outer gray matter covering the forebrain, marked by wrinkles and folds known as gyri and sulci
Cerebral hemispheres
One half of the bilaterally symmetrical cerebrum
Cerebrospinal fluid
Circulatory medium with the CNS that is produced by ependymal cells in the choroid plexus filtering the blood
Cerebrum
Region of the adult brain the develops from the telencephalon and is responsible for higher neurological functions such as memory , emotion, and consciousness.
Choroid plexus
Specialized structure containing ependymal cells that line the blood capillaries and filter blood to produce CSF in the four ventricles of the brain
Commissural fibers
Tracts that connect hemispheres
Corona radiata
Tracts that radiate from the cerebral cortex and go to the brain stem
Corpus callosum
Large white matter structures that connects the right and left cerebral hemispheres
Cranial nerves
One of twelve nerves connected to the brain that are responsible for sensory or motor functions of the head and neck
Diencephalon
Region of the adult brain retains its name from the embryonic developments and includes the thalamus and hypothalamus
Dura matter
Tough, fibrous, outer layer of the meninges that is attached to the inner surface of the cranium and vertebral column and surrounds the CNS
Electroencephalogram
Patterns of neuronal electrical activity generated by synaptic activity in the cortex
Epithalamus
Region of the diencephalon containing the pineal gland
Fissure
Deep groups that divide the cerebrum into groups
Gray matter
Regions of the nervous system containing cell bodies of neurons with few or no myelinated axons
Gyrus
Ridges that divide the cerebrum into lobes q
Homunculus
Body map that shows inner action of the body.