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Transcript
Respiratory and Excretory
Systems
Respiratory System:
Oxygen
Function: gas exchange, bring _______to
the
Carbon Dioxide
blood and remove ________________
from
the blood
Organs:
Filters
Warms and moistens air
1. Nose: _______,
______,
Cartilage
2. Trachea: protected by ________,
contains
the vocal cords
Epiglottis: covers trachea when swallowing
food
3. Bronchi: two branches that lead to the
Lungs
_______
Respiratory System:
4. Lungs: made up of ______
Alveoli
where gas exchange occurs ( oxygen
Enters and carbon dioxide _________
Leaves
_______
the blood)
5. Diaphragm: muscle that controls
Breathing
_______________
Diagrams:
• Respiratory and Circulatory systems work
together by the blood bringing carbon
dioxide to the lungs to be exhaled, and the
lungs taking in oxygen and giving it to the
blood to be transported throughout the body.
Emphysema: a disease that reduces the
Alveoli
number and elasticity of ___________
Nonsmoker Smoker
Excretory System:
Waste
Function: remove ____________
Organs:
Carbon Dioxide
1. Lungs: removes ____________
2. Large Intestine: removes
Solid
_______waste
from the digestive
system
3. Skin: removes ________
Water
and heat
Amino
4. Liver: removes excess _________
acids and worn out _____
RBC (Red Blood Cells)
5. Kidneys: produce urine to remove
________,
salts and nitrogen wastes
Water
Lungs are a respiratory organ because they take in oxygen
and an excretory organ because they get rid of carbon
dioxide
• Human Kidney
Diagrams:
Skin
Lg Intestine
Lungs
Kidney
Liver
Describe the exchange that occurs with
the circulatory system and the body
cells.
The circulatory system delivers and gives the body
cells oxygen and nutrients as it takes away carbon
dioxide and other wastes and delivers them to the
excretory organs
What would happen if your excretory
system didn’t work and why?
Your cells would start to die because waste is toxic
Review - Electricity
• Electricity is due to moving charges
• Like charges repel (two positives or
two negatives)
• Opposite charges attract (Positive and
negative)
• Electricity can travel through
conductors (metals)
• Electricity can not travel through
insulators (plastic, rubber, glass)