The HUmaN bODy
By: Charlotte, Meghan, and Maddi
Featuring: Mythical Creatures!
After this lesson, you will be able to…
● Identify main organs in the human
body
● Describe their functions
I can’t
wait to
learn!
In the human body, we have 11 major organ systems. In our
presentation, we will be talking about:
● Circulatory System - Heart
● Nervous System - Brain
● Respiratory System - Lungs
● Digestive System - Stomach and Intestines
● Skeletal System
● Muscular System
Organs & Body Systems!
Looks interesting!
The Circulatory System
● Delivers nutrients and oxygen to all
the cells in the body
● 3 main types of blood vessels:
arteries, veins, and capillaries
The Heart● Sends blood around your body, providing
your body with the oxygen and nutrients it
needs
● The right side of your heart receives blood
from the body and pumps it to the lungs, while
the left side of the heart receives blood from
the lungs and pumps it out to the body
Fun Facts: Your heart is
a muscle and is about
the size of your fist!
The Nervous System
● Responsible for the control over
the body and communication
between its parts
● The left side of the human brain
controls the right side of the body
and the right side controls the left
side of the body.
The biggest part of
the brain is called the
Cerebrum, it
controls your
thoughts and senses.
The second
biggest part is
called the
Cerebellum, it
controls your
movement and
your skeleton
The last part of
your brain is
called the
brainstem &
medulla, they help
keep your spine in
place
The Brain
The brain is in
charge of all
the things
your body
does to keep
you alive
The Respiratory System
● Gives oxygen to every part of the
body through breathing in oxygen
and exhaling carbon dioxide
● Oxygen that is taken in is never
permanently kept in the body
● The Respiratory System relies on
the Circulatory System to carry
oxygen throughout the body
● Allows oxygen in the air to be taken
into the body, while letting the body
get rid of carbon dioxide
● Lungs are the main organ in
breathing
The Lungs
The Digestive System
● A group of organs working
together to make food into energy
and necessary nutrients to feed the
whole body
●The Stomach
● Makes acid so it can break down food
and liquids
● Stomach muscles get smaller from
time to time, stirring up food to boost
digestion
Stomach----->
The Intestines
● Large intestine: Absorbs water from
indigestible food and carries waste
from the body
Small intestine: Absorbs nutrients and
minerals from food
Did You Know? For an adult, the large
intestine is 5 feet long and the small
intestine is about 22 feet long.
Large intestine
Large intestine
The Skeletal System
● Babies are born with 300
bones and an adult has 206
bones.
● Bones don’t move on their
own, they need the help of
the muscles attached to
them.
● The skeleton protects the
organs inside the body and
provides movement.
The Muscular System
● About 700 muscles are
attached to the bones of the
skeletal system
● Muscles can contract (to get
smaller), pull, and relax, but
they can’t push or stretch
themselves
● The Muscular & Skeletal
systems are responsible for
moving the body
● We have 5 sensory organs:
eyes, skin, nose, ears, and
our tongues
● Using the 5 senses we have
sight, touch, smell, hearing,
and taste
● The sensory organs take in
sensory information that
gets transferred to the
brain, and the body
responds to these messages
The Five Senses(Sensory Organs)
Touch Sight, smell, & taste
Hearing
Movement: The skeleton and muscular system share a job. When the brain sends
signals to the muscles attached to the bones, the muscles contract, making the bones
move.
Support: The pelvic bones (where your hips are) are very important, they give the
body protection and support. The spinal column, with all the bones attached, except
the head, arms, and legs, gives shape and support to the part of the body known as the
torso.
Respiration: The Respiratory system and the lungs help with breathing and making
sure oxygen is given to every part of the body.
Circulation: The Circulatory system makes sure blood, oxygen, and nutrients are
flowing throughout the body.
What Body Parts Enable Movement, Support,
Respiration, and Circulation?
● The body makes something called sweat to keep itself cool. Sweat is a liquid make by
your skin when your body gets hot.
● Under the skin is something called sweat glands, that’s where it starts, then sweat comes
out through tiny holes in your skin called pores.
● Sweat is mostly made of water and some salts.
How does the Body Stay Cool?5th Grade ONLY
Mm =millimeters
Activity
For the activity we will be having you play BINGO! with body parts. Please
follow directions and listen carefully!
1. Get your blank Bingo sheet and write your name on it
2. Write the heart, stomach, brain, small intestine, large intestine, lungs,
skin, and muscle randomly in the boxes
3. When we start, organ functions will be read aloud and you will write an
X on the organ name you believe is the correct answer.
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