Respiratory System Flashcards
(36 cards)
Purpose of gas exchange
-provide cells with oxygen
-cells use oxygen to create atp
Diaphragm
-helps breathing
-changing in volume and pressure in lungs
Intercostal muscles
Helps expand ribs
In between ribs
Ribs
-Protection
-Moves to create more space for lungs
Lungs
-organ site for gas exchange
-dense squishy tissue
-right=3 lobes left= 2 lobes
What happens during inhalation
Ribs expand
Diaphragm contracts
Intercostal muscles contract
Thoracic cavity expand
What happens during exhalation
Ribs compress
Diaphragm relaxes
Intercostal muscles relax
Thoracic cavity gets smaller
How is pressure and volume related
Inversely
How does oxygen and carbon dioxide want to travel
High to low
What are the purposes of the respiratory system
-produce vocal sound
-sense of smell
-regulate blood ph
-exchange gases
Structure of cilia
Microscopic hair like structure
Function of cilia
Moving cells, cell signalling
Where is the cilia found
Surface of animal cells
Structure of cartilage
Flexible
Connective tissue
Function of cartilage
Support trachea
Protect vocal cords
Where is cartilage found
Trachea
Bronchi
Nose
Epiglottis
Structure of epiglottis
Cartilage flap
Function of epiglottis
Closes when you swallow preventing food from going into airway
Where is the epiglottis found
The larynx/voice box
Structure of pleural membrane
Fluid filled sac
Function of pleural membrane
Reduce friction
Where is the pleural membrane found
Covers the lungs
how does diffusion of gas work
high concentration to low concentration
Altitudes effects on respiration
-loss of pressure difference
-oxygen molecules spread out
-rate of diffusion slows down
-increase in RBC (mimic blood doping)
-EPO cycle