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Respiratory And Excretory System
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20
Science
7th Grade
11/04/2012

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Term
The process in which oxygen and glucose undergo a complex series of chemical reactions inside cells.
Definition
Respiration
Term
Tiny hairlike extensions that move together in a sweeping motion.
Definition
Cilla
Term
The throat; part of both respiratory and digestive systems.
Definition
Pharynx
Term
The windpipe; passage through which air moves in the repiratory system.
Definition
Trachea
Term

The passages that direct air into the lungs.

Definition
Bronchi
Term
The main organs of the respiratory system.
Definition
Lungs
Term
Tiny sacs of lung tissue specialized for the movement of gases between air and blood.
Definition
Alveoli
Term
The process by which wastes are removed from the body.
Definition
Excretion
Term
A chemical that comes from the breakdown of proteins.
Definition
Urea
Term
A major organ of the excretory system which removes urea and other wastes from the blood.
Definition
Kidney
Term
A watery fluid produces by the kidneys that contains urea and other wastes
Definition
Urine
Term
A narrow tube that carries urine from one of the kidneys to the urinary bladder.
Definition
Ureter
Term
A sacklike muscular organ that store urine until it is eliminated from the body.
Definition
Urinary Bladder
Term
A small tube through which urine flows from the body.
Definition
Urethra
Term
Small filtering stucture found in the kidneys that removes wastes from blood and produces urine
Definition
Nephron
Term
What substances are produced during respiration?
Definition
Energy, water, and carbon dioxide
Term
Where in the respiratory system does gas exchange occur?
Definition
The walls of the alveoli
Term
During gas exchanges, what substance moves from the alveoli into the blood?
Definition
Oxygen
Term
What is the main function of the excretory system?
Definition
The excretory system collects wastes produced by cells and removes wastes.
Term
What chemical is produced from the breakdown of proteins that must be eliminated from the body?
Definition
Urea
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