Red areas are regions of high metabolism; blue areas are regions of low metabolism. Note that during exercise, skeletal muscle becomes more active and areas associated with food digestion and absorption become less active. At all times, however, the heart, liver, and brain are highly active.
Related Images
1022
931
1030
518
504
720
329
185
Comments (0)
Explore
Post your homework questions and get free online help from our incredible volunteers