by bivy56


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Front Back
The ____ is a continuation of the spinal cord and consists of the mdeulla oblongata, pons, and midbrain.
brain stem
The ____ is the second largest part of the brain.
cerebellum
The ____ gives rise to the thalamus, hypothalamus and epithalamus.
Diencephalon
The ____ is the newest and largest part of the brain.
Cerebrum
There are 3 extensions of the dura mater, list them:
Falx cerebri: seperates the two cerebral hemispheres

Falx cerebelli: seperates the two cerebellar hemispheres

Tentorium cerebelli: seperates the cerebrum from the cerebellum
Ventricles:

The lateral ventricles consist of the ____.
cerebral hemispheres
Ventricles:
The third ventricle consists of the ____.
diencephalon
Ventricles:

The cerebral aqueduct consists of the ____.
midbrain
Ventricles:

The fourth ventricle consists of the ____.
brain stem and cerebellum
____ - networks of capillaries in the walls of the ventricles.
choroid plexuses
Plasma is drawn from the ____ through ____ into the ventricles to produce CSF.
choroid plexuses; ependymal cells
List the order of circulation of CSF from the lateral ventricles:
1.) interverticular foramina
2.) third ventricle
3.) cerebral aqueduct
4.) fourth ventricle
5.) subarachnoid space or central canal
It is then reabsorbed into the blood by arachnoid villi
____- a common site for decussation of ascending and descending tracts.
medulla oblongata
List the centers of the medulla oblongata: (9)
Vital centers: cardiovascular, respiratory

Other centers: vomiting, swallowing, sneezing, coughing, hiccuping

Houses cranial nerves VIII-XII and part of fourth ventricle
The ____ acts as a bridge connecting the spinal cord with the brain and parts of the brain with each other.
pons
(along with the medulla, areas of the pons help control breathing)
The ____ extends from the pons to the diencephalon and contains part of the cerebral aqueduct.
midbrian (mesencephalon)
____: axons of the corticospinal, corticopontine, and corticobulbar tracts.
Cerebral peduncles
____: parts of the midbrain that are situated posteriorly and contain four rounded elevations: two superior colliculi and two inferior colliculi.
Tectum
____: large area of the midbrain where control of subconcious muscle activities takes place.
Substantia nigra
____: part of the midbrain that helps to control movements of the limbs.
Red nucleus
Loss of neurons in this area of the brain is associated with Parkinson's disease.
Substantia nigra
The midbrain contains cranial nerves ____.
III-IV
The ____ helps maintain conciousness and prevents sensory overload by filtering out insignificant information.
reticular activating system (RAS)
The anterior and posterior lobes of the cerebellum contribute to ____.
subconcious aspects of skeletal movement.
The flocculonodular lobe on the inferior side of the cerebellum contributes to ____.
equilibrium and balance
____: gray matter in the cerebellum in the form of parallel folds called folia.
cerebellar cortex
____: tracts of white matter in the cerebellum.
arbor vitae
____: attach the cerebellum to the brain stem.
cerebellar peduncles (three pairs: superior, middle, inferior)
List the 3 functions of the cerebellum:
1.) coordinate movements

2.) regulate posture

3.) balance
The thalamic structures lie within which part of the brain?
Diencephalon
The ____ is a major relay station for all sensory impulses except smell.
thalamus
List the 3 functions of the hypothalamus:
1.) control of the ANS

2.) production of hormones

3.) regulation of emotional and behavioral patterns, eating and drinking, body temperature, and circadian rhythms.
List the 2 major functions of the epithalamus:
1.) secretion of melatonin by the pineal gland

2.) the habenular nuclei mediate emotional responses to odors
____: seperates the frontal and parietal lobes of the cerebrum.
central sulcus
____: primary motor area of the cerebrum.
precentral gyrus
____: primary somatosensory area of the cerebrum.
postcentral gyrus
____: help initiate and terminate movements, supress unwanted movements and regulate muscle tone.
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