8. Look around you.
List as many things you can see.
What makes you name all those things?
What is responsible to remember those
things?
Do you have the same answer with your
seatmate?
Why?
10. Nervous System – is the
most complex and highly
developed system of all
your body systems.
Control unit of the body
Its function is to integrate
and coordinate bodily
activities
11. I. Central Nervous System – it includes the brain and the
spinal cord.
- it stores and processes information and sends
information to muscles and glands. (brain, spinal cord)
II. PERIPHERAL NERVOUS SYSTEM
It is composed of all the ganglia and nerves outside the
brain and spinal cord
Consists of 43 pairs of nerves
Connects the sensory and motor impulses between the
central nervous system and the body
Nerves that connect the central nervous system to various
parts of the body (nerves)
12. BRAIN – it is the
master control of the
nervous system
it stores and
processes information
and sends information
to muscles and
glands.
13. Nerve Cell or NEURON
it is the basic unit of the
nervous system
its main function is to
deliver messages
14. SPINAL CORD – it is a
dense bundle of
nerves that runs down
the middle of spine
from the brain.
It is the extension of
the brain
It enables us to do
things automatically
16. Take down on your notebook the
definition of the following. Illustrate some if
necessary.
Nerve cell
Central Nervous System
Peripheral Nervous System
Brain
Spinal cord
17. Direction: Write the correct answer on the space
provided.
________1. Basic unit of the nervous system.
________2.Control unit of the body.
________3. Bony structure also known as the cranium.
________4. Master control of the nervous system that
sends messages to the organisms.
________5. Another composition of the central
nervous system.
20. 1. Everybody stand up.
2. Feel behind you your spinal cord.
3. Ask your seatmate’s help if you
can’t.
4. On your own opinion, how
important is your spinal cord?
21. - it includes the brain and the spinal cord
- it stores and processes information and sends
information to muscles and glands.
22. It is composed of all the ganglia and nerves
outside the brain and spinal cord
Consists of 43 pairs of nerves
Connects the sensory and motor impulses
between the central nervous system and the
body
Nerves that connect the central nervous
system to various parts of the body
23. Peripheral Nervous
System
Sensory Division
(These are the sense organs
that receive and act on the
information received.)
Motor Division
(These are the body parts that
do the action or response.
Sensing External
Environment
• ears – hearing
• eyes –seeing
• skin – feeling
• tongue – tasting
• nose - smelling
Voluntary
(Autonomic
Nervous System)
(arms, legs, neck)
Involuntary
(Somatic Nervous
System)
(heart, stomach,
lungs)
Sensing Internal
Environment
• nerves
25. Write C on the space if the given is part of
the central nervous system and P if it’s for
peripheral nervous system.
____1. Cerebellum ____6. Legs
____2. Eyes ____7. Ganglia
____3. Senses ____8. Motor Division
____4. Hyphotalamus ____9. Cerebrum
____5. Neck ____10. Brainstem
29. •– it is the largest and uppermost part of the brain
– it is the largest and uppermost part
of the brain.
- It receives sensory messages and it
acts as the center of emotion,
consciousness, learning and voluntary
movement
- It controls mental processes such as
thinking, memorizing and decision
making
- It is divided into 2 hemispheres [
right and left ]
•– it is the largest and uppermost part of the brain
30. Right
hemisphere
-controls the muscles
of the left side of the
body
Specialized for spatial
relationship ,
imagination, insight
and appreciation of
art and music.
Left
hemisphere
-controls the
muscles of the
right side of the
body
Specialized for
scientific skills,
numeracy skills,
written and
spoken language
and analytical
thought
31. – it is called the “ little
brain “
It controls muscular
actions such as walking
It maintains one’s
sense of balance
It is responsible for
man’s ability to learn
habits and develop
skills
32. it is the elongated area at
the base of the brain.
It controls involuntary
actions such as heartbeat
and breathing
It conveys messages
between the spinal cord
and the brain
It also takes care of reflex
actions such as coughing
and blinking
33. Medulla oblongata – it is located at
the base of the brain
It is a crossing place for nerve
fibers connecting the other parts of
the brain with the spinal cord.
Midbrain – lies between the cerebrum
and cerebellum
It serves as a pathway for nerve
fibers leading to and from various
areas of the brain and spinal cord.
Pons – is a thick tract of nerve fibers in
the brain that links the medulla
oblongata to the brain.
34. Supply the missing words below.
Brain is divided mainly into (1)___________,
(2)_____________and (3)_______________. Cerebrum
controls thoughts and (4) ____________.
(5)_____________ coordinates movements of the
muscles. (6)________________controls involuntary
ACTIONS. The brainstem is divided into (7)________
(8)____________, pons. (9)____________regulates reflex
responses controlling heartbeat, breathing, etc.
Midbrain controls movements of the eyes. Pons relay
impulses between different parts of the
(10)_____________________.
35.
36. it is the basic unit of the
nervous system
its main function is to
deliver messages
37. Cell body - the main part
of the neuron
Dendrites – are the short
fibers around the cell
body
Axons – carry messages
away from the nerves
38. Cranial nerves – transport signals to or from
the brain eyes , nose , ears
spinal nerves – convey signals to or from the
spinal cord muscles and skin of the arms and
legs
39. – it is a rapid automatic response to the
environment that happens without the action
from the brain.
40. Motor reflex – movement
Ex. blinking of eyes
Conditioned reflex – action developed
through memory
42. It is an inflammation of the
meninges that cover the
brain and the spinal cord. It
is caused by a virus or
bacterium. .Person
affected with meningitis
suffers from severe
headaches, slow
respiration, slow pulse, and
partial unconciousness.
43. A disease of mammals such as dogs, cats,
monkeys and bats.The virus is present in the
animal's saliva and is transmitted to a human
being by a bite or by a lick over a break in the
skin.The virus infects the central nervous
system
44. Poliomyelitis or infantile paralysis
may affect children below seven
years of age. It is caused by a polio
virus that attacks a region in the
spinal cord which is composed of
cell bodies of neurons and nerve
fibers called gray matter.The signs
and symptoms of the disease are
headaches, sore throat, vomiting
and muscle weakness.
45. Amnesia is a condition
commonly caused by head
trauma, shock, depression
trauma, or even anesthesia.
People who suffer from
amnesia experience a
temporary or permanent loss
of memory.
46. A Greek word for “seizure.” Convulsions is
another term used. Seizures may have many
causes and not all seizures are epilepsy. High
fevers in young children may trigger seizures
which are short in duration, easily controlled and,
typically, have no permanent aftereffects.
Epilepsy is a specific condition which may
occur ant any age, seizures are more intense,
longer lasting in duration, and recure with some
frequency. The condition may be controlled with
medication, or if unresponsive to drugs, may
require surgery.
47. An abnormal growth
in or on the brain. It may
arise from tissues within
the skull or spread
through the bloodstream
from tumors in some
parts of the body.The
victim suffers from
headaches, nausea, and
vomiting.
48. Stroke- also called 'brain attack'
occurs when the blood supply to
a part of the brain is cut off.The
nerve cells in the affected area
die.When this happens, the
victim may lose the ability to
carry out functions controlled by
the affected part of the brain. A
stroke victim experiences
difficulty in speaking, numbness
in the face, and temporary
blindness in one eye.
49. A partial or complete
brain damage before,
during, or shortly after death
is generally called cerebral
palsy. A person with cerebral
palsy experiences speech
difficulties and convulsions.
There are possible cases of
mental retardation,good
intellectual function is more
often manifested.
50. The inability to
sleep due to excessive
physical or mental
activities, indigestion ,
constipation ,
excitement, or too
much intake of tobacco,
tea ,coffee, or drugs .
