The nervous system consists of the central nervous system (brain and spinal cord) and peripheral nervous system (cranial and spinal nerves). The central nervous system processes sensory information and sends motor commands to the body. The peripheral nervous system carries sensory information to the central nervous system and motor commands from it to the muscles and glands. The document then discusses two suffixes: -plegia, meaning paralysis, and -ataxia, meaning disorder. It provides paraplegia and ataxia as examples, describing their symptoms which result from damage to different parts of the central nervous system.

1. THE NERVOUS SYSTEM Eurydice
Cardona

2. FUNCTIONS
 The nervous system is responsible for coordinating and
controlling body function and activity. It receives information
from both internal and external sensory receptors and adjusts
the activity of muscles and glands accordingly to match the
body’s needs.
 The nervous system consists of the central ner vous system
(CNS) and the peripheral ner vous system (PNS).

3. CENTRAL NERVOUS SYSTEM
 The central nervous system consists of the brain and spinal
cord. Sensory information comes into the central nervous
system to be processed and motor messages exit carrying
commands for the glands and muscles.

4. PERIPHERAL NERVOUS SYSTEM
 The peripheral nervous system consists of cranial and spinal
ner ves. These sensory nerves carry information to the central
nervous system while motor nerves carry the commands to
the muscles and glands.

5. SUFFIXES
 I will be presenting two suf fixes and use them to provide an
example of their use in the nervous system.
 The suf fixes I will be reporting on are :
 -plegia
 -taxia
The suf fix –plegia means “paralysis”
The suf fix –taxia means “internal ordering or arrangement”

6. PARAPLEGIA
 Paraplegia is a type of paralysis that af fects all or part of the
trunk, legs and pelvic organs and is characterized by loss or
impairment of motor or sensory functions.
 It is the result of a lower spinal cord injury, usually from
motor vehicle injuries, sports accidents or falls.
 When the spinal cord (CNS) is damaged, impulses will no
longer travel to and from the brain correctly and muscles and
glands will not receive proper commands.

7. THE SYMPTOMS
 Symptoms include:
 -loss of sensation, motion and reflexes
 -loss of bladder and bowel control
 -sexual dysfunctions
 -pain caused by damage to spinal nerves
 Dif ficulty breathing and coughing

8. ATAXIA
 Ataxia is characterized by a lack of muscle coordination
during voluntary movements such as walking or picking up
objects.
 It is the result of damage to a certain section of the brain :
the cerebellum.
 The cerebellum, second largest portion of the brain, aids in
coordinating voluntary body movements.

9. THE SYMPTOMS
 Ataxia’s symptoms include :
 Poor coordination
 Unsteady walk and a tendency to stumble
 Change in speech
 Dif ficulty swallowing
 Dif ficulty with fine -motor tasks such as eating and writing
 Involuntary back and forth eye movements