2280 quiz Flashcards
1
Q
after what week of fetal development can muscle fibers be identified
A
16th week
2
Q
growth of voluntary muscle during the prenatal period is both …. and …..
A
hyperplastic and hypertrophic
3
Q
what percentage of total body mass of the fetus halfway through its development consist of individual fibers
A
15%
4
Q
what percentage of type I fibers are made up in the body at birth through childhood? And what percentage of type II?
A
50% of slow twitch of all muscle fibers and 25% of fast twitch
5
Q
What is the percentage of slow and fast twitch fibers during adulthood?
A
its almost 50-50
