RS System Flashcards
(31 cards)
What is the alvioli surrounded by
Capillaries
To allow exchange of oxygen and co2
Another name for the windpipe
Trachea
The upper part of the trachea
Larynx
Contains vocal cords
What is the epiglottis
Anflap which opens and closes as we swallow
The trachea branches into two tubes called the
Bronchii
Leading to rather lung
The bronchii split into
Bronchioles
Cells found in the tubes
Glandular- produces mucus to trap bacteria from entering the lungs
Cilia- small hairs which brush mucus waking with the bacteria back to the theorist to be swallowed
What does smoking do
Damages the cilia
And therefore the lungs become dirty due to not removing the mucus and bacteria cough to remove dirt
The lung cavity is called a
Thorax
What surround each lung
Plural membrane
Double layer with plural fluid in the cavity between
During inspiration the lungs are stretched causing the alvioli to
Open and inflate with air
Wha muscles are used to force the rib cage down with greater force
Internal intercostal
Muscles used during inspiration
Diaphragm
External intercostale
What happens if the plural membrane is punctured
The lung on that side will not inflate
Reduced oxygen inhailed
Alveoli are the site of
Gaseous exchange
Adaptations of alveoli to increase gaseous exchange
Vast air sacs to increase surface area and therefore more exchange of nurturers
Thin walls so minimal distance for the gases to pass through
Inner wall is coated in water to allow oxygen to dissolve before travelling through walls
Where does cellular respiration occur
Cytoplasm and mitochondria
Food supplies us with what energy
Glucose
What happens when the glucose is broken down
Water and co2 relaxed
The energy that was holding the molecule together is also released
ATP
Energy got by the breakdown of glucose from ADP
What happens during glycolysis
Glucose into pyruvic acid and energy in the cytoplasm
Relaxing ATP
Kreb cycle
In the mitochondria
More ATP is generated
Stage 3
Electron transport chain
In the walls on the mitochondria
Needs oxygen
Aerobic respiration
Co2 by product
Anaerobic respiration
Pyruvic acid is converted to lactic acid
No oxygen required
Can cause oxygen dept