1. GRADE 6
POWER POINT PRESENTATION
Gaudete Study Center, Inc.
1st Quarter topic
Unit 2
Lesson 1

2. Good morning &
Listen carefully

3. NERVOUS
SYSTEM

5. Role of the nervous system
 It is the most complicated part and highly
organized system in the human body.
 Nervous system is divided into 2 parts.
 CNS
 PNS

6. Parts of a
neuron

7. Stimulus & Response
 Stimulus – agent factor
that provokes interest,
enthusiasm, or
excitement.
 Response – reaction of
an organism.

8. Stimulus and response

9. What is your response?

10. What is your response?
 We will going to …

11. 3 types of neurons

12.  Sensory neuron –
(skin, eyes, nose, ears &
tongue)
 Interneuron – (brain & spinal
cord)
 Motor neuron – (muscles &
glands)

13. synapse
 The tiny of
microscopic
space
between
two neurons
is called
synapse

14. Glial cells
 Specialized
cells
 These cells
serve as
supportive, nutr
itive, and
service facility
cells for
neurons so that
they can
function well.

15. Node of Ranvier
 The gap within a myelinated sheath axon is
called…