1.2.3

?
R I F O A V B W V I W B R A I P U H Y L V
T N D B T Q L U N G E F F I C I E N C Y W
E C M C D Q I O I R L R Y X I I I T D R S
R I X U A L T L C K V K N J U A O Y S N R
K L H S A I O T S W D L E G U A Q O M M A
Y G A U Y E X T I D A L V O L U M E O G X
D K J G V R K E T M D A Y V W P V M K M B
Q M S L A W I Q V X U B Y F K G A F I U A
J I A J B Y J J K K H F A Y U J P V N F A
X S O U L G D I J A P C E X T G K S G X B
C A R B O N D I O X I D E R E M O V A L X
S U N D O V I T A L C A P A C I T Y X P T
Q W R M D C X A L Q L X V O A C R A X G A
I B W O V L T K J O X S G K G P V Q U S O
T A L B E G S F R L I I X J W A G A G O D
C J E U S S G N F Q A G C E A M X J X W Q
Y H V M S F M G A Q S D U V D T T B R P A
B K S X E O X Y G E N D E B T O F X Y P Q
F J I I L C C F R J O S M Y R V H N M F J
O N V O S M O N S H O K R Q B E N R R P B
C E G O V W Y A A T Q W H S E R K O P G A

Clues

  • The amount of air inspired or expired with each normal breath at rest or during exercise (5, 6)
  • The extra oxygen consumed during recovery from a period of intense physical activity, compared with the amount of oxygen which would usually have been consumed over the same length of time at rest (6, 4)
  • The most amount of air that can be made to pass into and out of the lungs by the most forceful inhale and exhale (5, 8)
  • There are more available as an increase in capillaries around the alveoli means more blood can get into these and through the muscles (5, 7)
  • These are more available as more oxygen can be absorbed by capillaries and more carbon dioxide can be taken from them (7)
  • This causes the alveoli to become less stretchy and efficient and as a result makes it more difficult to get oxygen in adn carbon dioxide out. (7)
  • This is improved as the lungs will deliver oxygen to working muscles better, allowing the body to cope better during exercise (4, 10)
  • This is more efficient as teh body can cope with more carbon dioxide being produced during exercise (6, 7, 7)

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