comparative physio Flashcards
1
Q
how are whales oxygen storage adapted to hold breath for longer
A
increase in myoglobin which holds onto oxygen better than haemoglobin
2
Q
what cardiovascular adaptations do whales have to hold breath for longer
A
lower heart rate, vasoconstriction and blood redistribution
3
Q
what respiratory adaptations do whales have to hold breath for longer
A
higher lung capacity, more oxygen
4
Q
what molecular and metabolic adaptations do whales have to hold breath for longer
A
-more mitochondria, better oxygen use
-muscle metabolism
-resistance to hypoxia
5
Q
human divers - ….. spleen size
A
increased
6
Q
physical factors which are unchanged between species
A
capillary size and diameter
