Questions and Answers 100% Pass
What makes up the nervous system? - ✔✔The brain and spinal cord
What space surrounds the brain and spinal cord, is filled with cerebrospinal fluid and
provides cushion, nourishes the CNS and removes waste materials? - ✔✔Subarachnoid
space
What is the subarachniod space and what does it do? ( 3 things) - ✔✔It surrounds the
brain and spinal cord and is filled with cerebrospinal fluid which is formed in the
ventricles or the brain and flows through the ventricle into the space
-provides cushion
-nourishes the CNS
-removes waste materials
Name the four divisions of the brain - ✔✔Cerebrum
Diencephalon
Brain stem
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,Cerebellum
What is the cerebrum composed of? - ✔✔the right and left cerebral hemispheres
the corpus callosum
What are the four lobes of the cerebral hemispheres? - ✔✔Parietal
Frontal
Occipital
Temporal
This bundle of nerve fibers is responsible for communication between cerebral
hemispheres - ✔✔Corpus Callosum
What does gray matter in the cerebral lobes do? - ✔✔Mediates higher-level functions
such as:
-Memory
-Perception
-Communication
-Initiation of voluntary movements
Where is the diencephalon located? - ✔✔Beneath the cerebral hemispheres
The diencephalon consists of? (2 things) - ✔✔The hypothalamus and thalamus
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, The thalamus is responsible for what? - ✔✔Screening and directing impulses to specific
areas in the cerebral cortex
The hypothalamus regulates what body functions? (6) - ✔✔-water balance
-appetite
-vital signs( BP, Respiratory rate,Temp,Pulse)
-sleep cycles
-pain perception
-emotional status
Where is the brain stem located? - ✔✔Between the cerebral cortex and the spinal cord
Name the 3 parts of the brain stem - ✔✔-Midbrain
-Pons
-Medulla Oblongata
This serves as a relay system for ear and eye reflexes and relays impulses between the
higher cerebral centers and the lower pons, medulla,cerebellum and spinal cord -
✔✔The Midbrain
What does the pons "link"? - ✔✔The cerebellum to the cerebrum and the midbrain to
the medulla
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