Respiratory/Excretory/Smoking Vocabulary
Word
Definition
Respiratory System
Respiration
Path of air
1)
2)
3)
4)
Pharynx
Trachea
Bronchi
Lungs
Alveoli
Gas exchange process
Diaphragm
Larynx
After air enters an __________________, oxygen passes through the
wall of the _________________ and then through the
_________________ wall into the blood. _____________
________________ and water pass from the ________________ into
the alveoli.
Vocal cords
Tar
Carbon monoxide
Nicotine
Addiction
Bronchitis
Emphysema
Lung cancer
Cancerous growths, or ______________, take away space in the
_____________ that should be used for _________ ___________.
Smoking and heart
attacks
Compared with nonsmokers, smokers are more than ______________
as likely to have heart attacks.
Passive smoking
People _______________________ inhale smoke from other people’s
cigarettes, cigars, or pipes.
Excretory system
Excretion
Urea
Kidneys
Urine
Ureters
Urinary bladder
Urethra
Nephrons
Stages of urine formation
1)
2)
Other organs of excretion
1)
2)
3)
Respiratory/Excretory/Smoking Vocabulary
Word
Definition
Respiratory System
Moves oxygen from the outside environment into the body. It also
removes carbon dioxide and water from the body.
Respiration
Process in which oxygen and glucose undergo a complex series of
chemical reactions inside cells. Respiration produces carbon dioxide
and water.
Path of air
1) Nose
2) Pharynx
3) Trachea
4) Bronchi
Pharynx
The THROAT, it is the only part of the respiratory system that is shared
with another system-----the digestive system.
Trachea
It is lined with cilia and mucus and is also known as the WINDPIPE.
Bronchi
The passages that direct air into the lungs.
Lungs
The main organ of the respiratory system.
Alveoli
Tiny sacs of lung tissue whose structure is specialized for movement of
gases between air and blood. Where GAS EXCHANGE takes place.
Gas exchange process
After air enters an alveolus, oxygen passes through the wall of the
alveolus and then through the capillary wall into the blood. Carbon
dioxide and water pass from the blood into the alveoli.
Diaphragm
Located at the base of the lungs, its a dome shaped muscle that plays
an important role in breathing.
Larynx
Also known as the VOICE BOX, located in the top part of the trachea
underneath the epiglottis.
Vocal cords
The folds of connective tissue that produce your voice, stretch across
the opening of the larynx.
Tar
The dark sticky substance that forms when tobacco burns.
Carbon monoxide
A colorless, odorless gas that is produced when substances burn like
tobacco. It is harmful to inhale because its molecules bind to
hemoglobin in red blood cells and take up space needed for oxygen.
Nicotine
Chemical found in tobacco, it is a drug that speeds up the activities of
the nervous system, heart, and other organs.
Addiction
A physical or psychological dependence on a substance or something.
Bronchitis
Irritation of the breathing passages in which the small passages
become narrower than normal and may be clogged with mucus.
Emphysema
Disease that destroys lung tissue and causes difficulty breathing.
Lung cancer
Cancerous growths, or tumors, take away space in the lungs that
should be used for gas exchange.
Smoking and heart
attacks
Compared with nonsmokers, smokers are more than twice as likely to
have heart attacks.
Passive smoking
People involuntarily inhale smoke from other people’s cigarettes,
cigars, or pipes.
Excretory system
The system in the body that collects wastes produced by cells and
removes the wastes from the body.
Excretion
The process of removal.
Urea
A chemical that comes from the breakdown of proteins, its a waste
product that is removed by the kidneys.
Kidneys
Major organs of the excretory system, they eliminate urea, excess
water, and other waste materials.
Urine
Watery fluid produced by the kidneys.
Ureters
Two narrow tubes that transports urine from the kidneys to the urinary
bladder.
Urinary bladder
A sacklike muscular organ that stores urine.
Urethra
A small tube where urine exits the body.
Nephrons
The tiny structures that remove wastes from blood and produce urine
Stages of urine formation
1) Both wastes and needed materials, such as glucose, are removed
from the blood.
2) Much of the needed material is returned to the blood.
Other organs of excretion
1) Lungs
2) Skin
3) Liver