SPORT BTEC LEVEL 3: RESPIRATORY SYSTEM QUESTIONS AND THEIR REVIEWED ANSWERS

SPORT BTEC LEVEL 3:
RESPIRATORY SYSTEM
QUESTIONS AND THEIR REVIEWED
ANSWERS


How does the diaphragm move when we inspire?
Down and flat
How does the diaphragm move when we expire?
Up and dome
The alveoli are the 'site' for what process?
Gaseous exchange
What flap of cartilage closes over the trachea when
swallowing?
Epiglottis
Provide 3 characteristics of the alveoli.
Permeable walls, thin walls, large surface area
How do the internal intercostals move the ribs?
Pulling the ribcage upwards and outwards
How do the external intercostals move the ribs?
Pulling the ribcage downwards and inwards
How does the movement of the diaphragm and
internal intercostals enable effective expiration?
The intercostal muscles relaxes, compressing the lungs
inwards and the diaphragm relaxes and pushes the lungs
upwards
How does the movement of the diaphragm and
external intercostals enable effective inspiration?