Function of Nervous System.pptx

1. EDUCATION
IDEA
STRATEGY
TARGET
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Parts and
Function of
Nervous
System

2. III. Innovation /Intervention Strategy
The Nervous System is the
control unit of the body . Its function is
to integrate and coordinate bodily
activities. It coordinates the activities and
communicates with the sense organs
and the other body systems through the
wire like nerve cells or neurons that
transmits messages passing through
spinal cord to the brain and back to the
nerve cells or neurons for the
interpretation of the senses .

3. III. Innovation /Intervention Strategy
The Nervous System and its Function
The Nervous System is the control
unit of the body . Its function is to
integrate and coordinate bodily
activities. It coordinates the activities and
communicates with the sense organs and
the other body systems through the wire
like nerve cells or neurons that transmits
messages passing through spinal cord to
the brain and back to the nerve cells or
neurons for the interpretation of the
senses .

4. III. Innovation /Intervention Strategy
 The brain is an amazing organ that
performs different functions such as
processing memory, judgement , and
reasoning. It controls body movement,
emotions , feelings and vital sign of life
such as breathing. The brain has three
main parts: cerebrum , cerebellum and
the brainstem or the medulla oblongata.

5. III. Innovation /Intervention Strategy
Cerebrum
The cerebrum constitutes the largest part of the
human brain. It is also known as the cortex and is
responsible for performing a great number of
important brain functions, including action and
thought processing. The cerebrum is further
subdivided into four different sections that have their
own respective functions and are termed as lobes. The
names of these lobes are; frontal lobe, occipital lobe,
parietal lobe and temporal lobe.
 Frontal Lobe: The frontal lobe is tasked with the
duty of performing functions like expressive
language, reasoning, higher level cognition and
motor skills. It is positioned at the front portion of
the brain. Any damage to it can lead to changes of
socialization, attention, sexual habits, etc.

6. III. Innovation /Intervention Strategy
 Parietal Lobe: The parietal lobe is responsible for
processing the information sent to the brain by the
tactile senses like pain, pressure and touch. It is
placed in the center of the brain. Any damage to it
can cause problems with language, ability of
controlling eye gaze and verbal memory.
 Occipital Lobe: The occipital lobe is tasked with the
duty of interpreting the information being sent to the
brain by the eyes. It is positioned at the back of the
brain. If it is damaged, your visual ability will be
affected, like unable to recognize colors, words and
objects.
 Temporal Lobe: The temporal lobe is responsible for
forming memories and processing the sounds being
recorded by the ears. It is placed at the bottom of the
brain. Any damage to it can cause problem with
language skills, speech perception and memory.

7. III. Innovation /Intervention Strategy
Cerebellum
 The cerebellum is known as the little brain and
resembles the cerebrum for it has a highly folded
surface and distributed in 2 hemispheres. This part
of the brain is responsible for performing functions
like balance, posture and coordination of movement.
movement. Even though the cerebellum is smaller in
size, it contains more neurons than the entire brain
itself. The cerebellum is located at the back of the
brain stem and on top of the pons.
Limbic System
 The limbic system lies inside the cerebrum. It is also
sometimes called the emotional brain because it
takes charge of our emotional response. The
thalamus, hypothalamus, amygdala and the
hippocampus are the four different sections that
make up the limbic system.

8. III. Innovation /Intervention Strategy
Brain Stem
 When we talk about parts of the brain and their
functions, brain stem should never be overlooked.
The brain stem is located underneath the limbic
system. This section of the brain is tasked with the
duty of supervising important tasks such as blood
pressure, breathing and heartbeat. Moreover, the
brain stem organizes reflexes and coordinates the
fine movement of the face and limbs. It is composed
by midbrain, pons and medulla.

9. III. Innovation /Intervention Strategy
 Another organ in the nervous system is the
spinal cord. It a cord like material inside the
backbone. It bridges impulse between the
brain and the body. This means all the signals
that go to and from the brain pass through
the spinal cord and deliver it to the right
muscles and senses .

10. III. Innovation /Intervention Strategy
 Neuron is also another organ in the
nervous system. It is a wire like organ that
is found all over the body. Its main
function is to deliver messages within the
nervous system and between other body
system. It is divided into three parts:
axon, cell body and dendrites .

11. III. Innovation /Intervention Strategy
 Neurons can be classified based on the
direction in which they send information
.These can be sensory neurons , motor
neuron and inter neuron .

12. III. Innovation /Intervention Strategy
Learning Task 1: Determine if each sentence is
correct or incorrect. Write C on the line if it is
correct. If it is Incorrect, encircle the word(s) that
make(s) it incorrect and write the correct word(s)
on the line.
_________1. The cerebrum is the largest part of the
brain
_________2. The brain is the control center of the
nervous system.
_________3. The brain is made up of the cerebrum,
cerebellum and spinal column.
_________4. The nervous system consists of the
heart, brain and spinal column.
_________5. The nerves interpret the meaning of
what is perceived by the sense organs.

13. III. Innovation /Intervention Strategy
Learning Task 2: Answer the questions by writing
True or False. If it is false, replace the underlined
word with the correct word to make the statement
correct.
__________1. The nervous system is the control
system of the body.
_________ 2. The nerve cells is the basic unit of the
nervous system.
_________ 3. The brain is found all over your body.
_________ 4. The brain has three main parts :
cerebrum , cerebellum and the medulla
oblongata.

14. III. Innovation /Intervention Strategy
The nervous system maintains internal order within
the body by coordinating the activities of muscles and
organs, receives input from sense organs, trigger
reactions, generating learning and understanding, and
providing protection from danger. This is primarily
conducted through electrochemical signaling between
nerves and other cells.
How Does the Nervous System Work?
The nervous system in a human is made of the brain,
spinal cord, sensory organs and all the neurons that
serve as communication channels between the various
organs of the body. It is primarily made of a single type
of cell called the neuron. Colloquially, they are also
called nerve cells. Neurons are made of a central cell
body and a number of extensions. The cell body is also
known as the soma, and extensions can be either
dendrites or axons.

15. III. Innovation /Intervention Strategy
Nervous System Function
Coordinating Movement of the Body Parts
The primary function of the nervous
system is to receive information and to generate a
generate a response to a given stimulus. The
information and the response could be simple,
subtle or complex. For instance, when a hot object
is touched, its temperature is conveyed quickly to
the central nervous system and the response is an
immediate reflex of removing the hand, through
the action of skeletal muscles. A few such incidents
could also lead to the formation of learning and
long-term memory encoded as a series of neural
connections.

16. III. Innovation /Intervention Strategy
Perceiving and Responding to the Senses
Among the primary modes of input into
the nervous system are the electrical impulses
that arise from sense organs. Touch, sound,
sight, smell, and taste are conveyed to the
nervous system, in order to integrate
information and assess the nature of the
external world. Similarly, a number of neurons
act as sensors for the internal state of the body.
For instance, sensory neurons in the eyes, nose,
and tongue can inform a person about the
presence of delicious food, and create a desire to
eat.

17. III. Innovation /Intervention Strategy
Learning Task 3: Number the sentence from 1-5 to
show the direction of the information to reach
the desired response to the given stimulus. Write
the numbers on the lines.
_______ 1. The sensory nerves send the impulse to
the brain through the spinal cord.
_______ 2. The receptors (eyes) receive information
from the environment.
_______ 3. The motor nerves carry the impulse the
effectors.
_______ 4. The brain interprets the impulse.
_______ 5. The message goes back to the spinal
cord to the motor nerves.

18. III. Innovation /Intervention Strategy

19. III. Innovation /Intervention Strategy
Learning Task 1: Determine if each sentence is
correct or incorrect. Write C on the line if it is
correct. If it is Incorrect, encircle the word(s) that
make(s) it incorrect and write the correct word(s)
on the line.
_________1. The cerebrum is the largest part of the
brain
_________2. The brain is the control center of the
nervous system.
_________3. The brain is made up of the cerebrum,
cerebellum and spinal column.
_________4. The nervous system consists of the
heart, brain and spinal column.
_________5. The nerves interpret the meaning of
what is perceived by the sense organs.
Key Answer
C
C
C
Brain stem
Neurons

20. III. Innovation /Intervention Strategy
Learning Task 2: Answer the questions by writing
True or False. If it is false, replace the underlined
word with the correct word to make the statement
correct.
__________1. The nervous system is the control
system of the body.
_________ 2. The nerve cells is the basic unit of the
nervous system.
_________ 3. The brain is found all over your body.
_________ 4. The brain has three main parts :
cerebrum , cerebellum and the medulla
oblongata.
Key Answer
True
True
True
False

21. III. Innovation /Intervention Strategy
Learning Task 3: Number the sentence from 1-5 to
show the direction of the information to reach
the desired response to the given stimulus. Write
the numbers on the lines.
_______ 1. The sensory nerves send the impulse to
the brain through the spinal cord.
_______ 2. The receptors (eyes) receive information
from the environment.
______ 3. The motor nerves carry the impulse the
effectors.
_______ 4. The brain interprets the impulse.
_______ 5. The message goes back to the spinal
cord to the motor nerves.
Key Answer
1
2
3
4
5