This Topic discuss about the parts of brain and function of it, also how the massage transmit to our brain and makes an action.

4. • It is one of the
largest organs in
the body, and
coordinates most
body activities.
• It is the center for
all thought,
memory, judgment,
and emotion.

6. • The outer layer of the cerebrum is the
cerebral cortex, which is composed of folds
of gray matter.
• The cerebrum is subdivided into the left and
right halves called cerebral hemispheres.
Each hemisphere has 4 lobes.
It is the largest
section of the
brain.

7. Most anterior portion
of the cerebrum,
controls motor
function, personality,
and speech
The most superior portion
of the cerebrum, receives
and interprets nerve
impulses from sensory
receptors and interprets
language
The left and right lateral
portion of the cerebrum,
controls hearing and
smell
The most posterior
portion of the
cerebrum, controls
vision.

9. coordinates
voluntary
movements such as
posture, balance,
coordination, and
speech, resulting
in smooth and
balanced muscular
activity.
Can control the
balance, emotions, and
ability to learn things.

11. -acts as a pathway for impulses
to be conducted between the
brain and the spinal cord.
-means bridge—connects the
cerebellum to the rest of the
brain.
-most inferior positioned
portion of the brain; it
connects the brain to the
spinal cord.
-it plays an important role in the regulation
of cardiac and respiratory function,
consciousness, and the sleep cycle.

12. • is along tube like structure which
extends from the brain. The spinal
cord is composed of a series of 31
segments. A pair of spinal nerves
comes out of each segment. The
region of the spinal cord from
which a pair of spinal nerves
originates is called the spinal
segment. Both motor and sensory
nerves are located in the spinal
cord.
• The spinal cord is consists of the
internal gray matter that has the
shape of the letter H and
surrounded by an external white
matter.
four regions
FUNCTION:
The spinal cord is the main
pathway for information
connecting the brain and the
peripheral nervous system .

17. • Neurotransmitters are the chemical messengers of
the brain, and are used to transmit signals from
one neuron to another. This is because neurons
don’t actually touch each other- they have a gap
between them called a synapse or synaptic cleft.
When an action potential reaches the presynaptic
terminal (the terminal button before the synapse)
it stimulates the release of neurotransmitters into
the synaptic cleft. The neurotransmitters then
bind to receptors on the postsynaptic cell (the
dendrite of another neuron, on the other side of
the synapse). When it binds to the receptor, it
will either produce an effect or will inhibit the
effect in the postsynaptic cell.

18. • somatic nervous
system (SNS)
• autonomic
nervous system
(ANS)

19. • It is Voluntary movement, that we can control.
After the brain has processed the information,
the somatic motor neurons respond. Some
somatic nerves are used in reflex arcs and are not
under our conscious control.
• The primary role of the somatic nervous system
is to connect the central nervous system to the
organs, muscles, and skin. This allows you to
perform complex movements and behaviors.
• Examples: dancing or video games

20. -Has many Nerves
• somatic nervous
system (SNS)
• autonomic
nervous system
(ANS)

21. • We do not control the ANS, therefore, it is said to
be under involuntary control. The ANS allows for
homeostasis to occur. These nerves have
opposite effects on the organs they control, one
nerve will speed up the heart and another will
slow it down It is not on and off, it is more like gas
and brake.
• regulates the functions of our internal organs
(the viscera) such as the heart, stomach and
intestines.
• Two Division:

22. Prepares the body for stressful
situations—fight or flight
– Rest and Digest

25. • The number of cells in the human body exceeds
the number of stars in the milky way
• The right side of the brain controls the left
side of the body and the left side of the brain
controls the right side of the body
• By the time it’s born a baby’s brain consists of
about 10 million nerve cells
• The nervous system can transmit impulses at a
tremendous speed of 100 meters per second

26. your brain changes and adapts all the time and all
through your life
your brain learns
and forms
memories by
strengthening
synapses that are
used a lot and
weakening those
that are used less
often