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Chapter 13
The Central Nervous System- Brain I-III
27
Anatomy
Undergraduate 3
10/22/2014

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Term
Cerebrum, diencephalon, cerebellum, brain stem (which includes midbrain, pons, medulla oblongata)
Definition
4 main parts of the brain
Term
gray matter
Definition
on the outer part of the brain (cerebellar and cerebral cortex) and also the innermost regions.. it is unmyelinated neurons and neuron cell bodies (called brain nuclei)
Term
white matter
Definition
made of myelinated and some non-myelinated axons
Term
ependymal (neuroglia) epithelium
Definition
The ventricles of the brain are lined with _____________ _____ and filled with CSF.
Term
cerebrum and brain stem
Definition
the ventricles of the brain are found in 4 interconnected cavities in the ______ and ______.
Term
septum pellucidum
Definition
The ______ separates the lateral ventricles.
Term
interventricular foramen
Definition
connects the third ventricle to the lateral ventricles
Term
cerebral aqueduct
Definition
connects the third and fourth ventricles
Term
apertures
Definition
opening in the walls of the fourth ventricle that allow CSF to surround the brain in the subarachnoid space
Term
allows CSF to surround brain in the subarachnoid space
Definition
what is the function of apertures in the walls of the fourth ventricle?
Term
central canal of spinal cord
Definition
the fourth ventricle connects to the
Term
brain stem
Definition
being a passageway for fiber tracts between cerebrum and spinal cord is a function of the?
Term
brain stem
Definition
Cranial nerves and innervation of the face and head is a function of the?
Term
brain stem
Definition
automatic behaviors needed for survival and integration of auditory and visual reflexes are functions of what part of the brain?
Term
medulla oblongata
Definition
this is the most caudal part of the brain stem; it's continuous with the spinal cord
Term
pyramidal tracts
Definition
_____ ____ carry voluntary motor output from the cerebrum to the brain stem.
Term
inferior olivary nucleus
Definition
this part of the brain is the relay station for sensory/proprioceptive info traveling to cerebellum from spinal cord. It processes and sits info then sends it on its way.
Term
reticular formation
Definition
the ____ - runs through the center of the brain stem and coordinates reflexes and autonomic behaviors including cranial nerves.
Term
pons
Definition
located between midbrain and medulla and is separated from cerebellum by fourth ventricles.
Term
pontine nuclei
Definition
________ _________ within pyramidal tracts relay information from cerebrum to cerebellum for coordination of voluntary movements.
Term
cerebral aqueduct
Definition
the internal cavity of the midbrain is called the ______ _________.
Term
midbrain
Definition
located between diencephalon and pons
Term
corpora quadrigemina
Definition
part of midbrain that integrates auditory and visual reflexes
Term
superior colliculus
Definition
the _______ ________ of the midbrain acts for visual reflexes
Term
inferior colliculi
Definition
the ______ ______ of the midbrain responds to sound
Term
midbrain
Definition
the cerebral aqueduct, corpora quadrigemina, superior colliculus, and inferior colliculi are part of the _________.
Term
cerebellum
Definition
this part of the brain smooths and coordinates body movements, helps maintain posture and equilibrium, and makes up 11% of the mass of the brain
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