2. The Nervous System
-Sensory information is processed by the central nervous system
(CNS). Motor messages then exit the CNS to command muscles
and glands. Sensory nerves of the peripheral nervous system
(PNS) bring information to the CNS, while motor nerves carry
commands away from the CNS.
-The brain and spinal cord of the CNS work together with the
cranial and spinal nerves of the PNS to help the body function
properly.
Weakness (-paresis) can occur in the body’s motor
skills if the nervous system is not working properly.
Speech (-phasia) can also be affected, since the
brain of the CNS regulates language and
communication.
3. ● hemiparesis [hemi/paresis]
○ hemi- = half, -paresis = weakness
○ “weakness or loss of motion on one side
(half) of the body
-paresis = weakness
5. ● aphasia [a/phasia]
○ a- = without, -phasia = speech
○ “inability to communicate (without)
verbally or in writing due to damage of the
speech of language centers in the brain
-phasia = speech
6. ● dysphasia [dys/phasia]
○ dys- = abnormal, difficult, -phasia = speech
○ “difficulty communicating verbally or in
writing due to damage of the speech or
language centers in the brain”
-phasia = speech
7. Nervous System: CNS & PNS
-Is responsible for coordinating all of the body’s activity, including motor commands and
language centers of the brain
-paresis = weakness
-hemiparesis, monoparesis
-phasia = speech
- aphasia, dysphasia
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