the mammalian respiratory system air enters the respiratory system through the or the. particles...
DESCRIPTION
--> The enlarged portion of the trachea is called the _____ (voice box) and it supports the which is a flap that covers the trachea when we swallow our food (prevents choking). The epiglottis ensures that the food is pushed down into the proper tube which is the. What happens when our epiglottis doesn’t close when we swallow our food or drink?. larynx epiglottis esophagus We choke!TRANSCRIPT
THE MAMMALIAN RESPIRATORY SYSTEM
Air enters the respiratory system through the or the .
Particles that enter through the nose are filtered by the and the .
The nasal cavities also and the air as it enters
The mouth and the nasal cavities join at the .
mouthnasal passages
tiny hairs mucus
warm
pharynx
moisten
-->Respirtion Overview Clip
Two openings branch from the pharynx: (windpipe) and the (food tube)
The trachea also has a filtering system; and , (microscopic hairs that sweep particles up and out)
To prevent the trachea from collapsing, it is made out of .
tracheaesophagus
mucuscilia
cartilage rings
MUCUS
--> The enlarged portion of the trachea is called the
_____ (voice box) and it supports the which is a flap that covers the trachea when we swallow our food (prevents choking). The epiglottis ensures that the food is pushed down into the proper tube which is the .
What happens when our epiglottis doesn’t close when we swallow our food or drink? .
larynxepiglottis
esophagus
We choke!
The larynx is at the top of the trachea and contains 2 thins sheets of elastic ligaments called the ___ . The air vibrates as it is forced through these cords which produces sound A thick band of cartilage that protects the larynx is called the __________________
Before the larynx is the opening of the trachea and it is called the .
When the vocal cords become inflamed and you temporarily lose your voice, it is known as .
Vocal Cords video
vocal cords
Adam’s apple
glottis
laryngitis
Fun Facts!
-Following puberty, the cartilage and larynx of males increase in size and thickness. The larger voice box produces a deeper sound.
-Adolescent boys have trouble controlling the pitch of their voice due to rapid growth of the voice box
-Ever notice that you voice lowers when you have a cold? This is caused by inflammation of the vocal cords which causes swelling and produces lower-frequency vibrations.
After the trachea the air moves into the two which is also have cartilage rings.
The bronchi than branch into tinier airways called , these do not contain cartilage
The air moves into tiny sacs called and are surrounded by .
The alveoli are the site of .
bronchi
bronchioles
alveolicapillaries
gas exchange
__________ Moves form the lungs into the alveoli and than into the capillaries, ____ is exchanged at the exact same time from the capillaries into the alveoli and than into the lungs where it is exhales.
Each lung contains alveoli and provides enough surface area and than into the lungs where it is exhaled.
To reduce friction between the lungs and the chest cavity exists a thin membrane called the , these membranes contain a space that are fluid filled
OxygenCO2
150 million
pleural membrane
Is the inflammation of the pleural membranes and the build up of fluids in the chest cavity, it is caused when the 2 membranes rub together and is normally caused by .
Each lung is divided into lobes. The right lung has 3 lobes and the left has 2 to accommodate the heart.
Pleurisy
Pneumonia, Smoking & Emphysema
PUTTING IT ALL TOGETHER (UPPER RESPIRATORY TRACT)Nostrils/mouth Pharynx Glottis Larynx Trachea Bronchi Bronchioles Alveoli
(LOWER RESPIRATORY TRACT)
Homework
-Read Section 8.2 pg 256-259 -Breath of Life Questions