Download 5th Grade Chapter 3 Notes Continued

5th Grade
Chapter 3 Notes Continued
Respiratory, Digestive and Urinary
systems
Respiratory System
Mucus
• ____________
is a sticky, thick fluid that traps
dust, germs, and other things that may be in the
air.
• 1. Air enters through the _______or
________.
nose
mouth
• 2. __________warm
and moisten the air.
Sinuses
• 3. With its hairs and layer of ________,
the nose
Mucus
traps dust and germs.
• 4. Air passes from the sinus to the back of the
throat and into the _________.
Larynx
Vocal Cords
• 5. The larynx contains the ______________.
How Air Travels into and Through your
Body Continued
• 6. Trachea
___________ is a tube that carries air from
the larynx to the lungs.
• 7. The trachea leads to two branches called
Bronchi
Lungs
___________that
go into the _______.
• 8. In the lungs, these tubes branch into
bronchioles
smaller and smaller tubes called__________.
Asthma
___________is
a disease in which these tubes
may become narrowed. This prevents air from
easily traveling through the lungs.
How Air Travels into and Through your
Body Continued
• 9. The bronchioles end in clusters of tiny thinwalled pouches or ________
in the lungs Air sacs
oxygen enters the blood and carbon dioxide
leaves the blood. Air sacs are also called
alveoli
_______.
diaphragm
• 10. The _________is
a dome-shaped muscle
that forms the bottom of the chest area muscle _________it
moves _______
and gets
muscle
down
flatter
_______.
Cilia
• _______are
tiny, hairlike
Cilia
structures on cells in the
linings of many parts of
the respiratory system,
such as the trachea.
- Cilia help clean air by
waving
__________
very rapidly - pushes dirty
__________
out of the _________
mucuc
Lungs
to the _________,
where it is
Throat
swallowed.
Respiratory and Circulatory Systems
Working Together
• Respiratory and circulatory systems work
oxygen to the cells.
together to get ________
• The respiratory system gets the oxygen to tiny
Air sacs inside your ______.
lungs
________
• The _______picks
up the oxygen there and
blood
cells
carries it to all your _____.
• In the _______:
Air sacs
– __________
leaves the lungs and enters the blood.
oxygen
Carbon dioxide leaves the blood and enters the
– _______________
lungs.
Output / Input
• Output of one system is the input of the other
system.
• Several systems working together to make
sure your cells get oxygen - EXAMPLE
Carbon dioxide
When you hold your breath, ____________
brain
builds up in your blood. Your _______
can
sense this. Your brain sends a message to the
____________
and rib _________
telling them
diaphragm
muscles
to _________..
breathe
Digestive System
changed
• Food has to be ___________
before your cells
can use it - broken down into very small
materials.
blood
• Then the food can enter the __________
to
get to your ________.
cells
organs
• Digestion takes many ________
working
together. Each organ has __________
that
structures
help it do its part of the job.
Mouth and Esophagus
chewing
• _____________
is the first step of digestion makes food small enough to swallow, and it
makes
the job of the rest of the digestive system easier.
esophagus
• The ____________
is a tube that carries food to
the stomach - pushes food to the stomach by
muscles
squeezing its rings of __________
in a pattern.
• Food travels through the esophagus to the
stomach in about two or three ___________.
seconds
Stomach
• ___________
stomach - At the bottom of your esophagus - a tight
round muscle.
• When you swallow, this muscle relaxes and opens to let
food into your stomach. Then the muscle closes to keep the
food from moving back into your esophagus.
• Stomach's walls can stretch
_______ to store all the food from a
meal.
• The stomach produces ________
that help to digest foods.
fluids
squeeze
• As strong muscles in the stomach's walls __________,
these fluids mix with the food.
• After the food becomes a soupy _________,
it is ready to
paste
leave your stomach.
Intestines
• The stomach squeezes the partly digested food into a
Small Intestine
narrow, winding tube called the _____________
Liver
pancreas
• __________
and _____________are
organs that send
chemicals to your small intestine to help digest food.
• When digestion is finished, the particles of digested
food can move into ________________
that are in the
Blood vessels
walls of your intestine.
• Tiny finger-shaped structures called _________are
villi
found all over the inside walls of the small intestine.
Surface area
• Villi give the small intestine more ______________
to
absorb food.
Large Intestine
• At the end of the ________________,
some food
Small intestine
that cannot be digested remains.
• This food waste moves to a wider tube called the
Large intestine - also known as the ______.
colon
______________
Helpful bacteria live here.
water
• The large intestine takes _________
and
_______from
the wastes making the waste more
salts
solid.
• Finally, muscles squeeze to push the ________
waste
out of the body.
Urinary System
• ___________________
- rid the body of wastes that are in
Urinary system
the blood.
• ______________
are a pair of organs that remove wastes
kidneys
from your blood. They are on either side of your
____________,
just under your lowest ribs.
backbone
• When wastes are filtered out of the blood, many other
materials also leave the blood - water, salt, calcium,
nutrients, and other chemicals your body needs.
• The ____________
has to put the right amount of these
kidney
materials back into the blood to keep the body healthy.
• Kidneys help keep the amounts of these materials from
regulates
getting too high or too low - ____________
Urine
• Mix of wastes and water is urine
___________.
• A tube
_________ carries urine away from the kidneys
to the _______________.
Urinary bladder
bladder
• ____________stores
urine until it leaves the
body.
• The kidneys are not the only organs that get rid of
cells’ wastes.
– _______________
Carbon dioxide is a waste product removed by the
lungs.
– ______________Sweat Glands also release a small amount of cells’
wastes in sweat.