[EndoGlo]

Although hypertrophy and hyperplasia are two distinct process, they frequently occur together, such as in the case of the hormonally-induced proliferation and enlargement of the cells of the uterus during pregnancy.

Ah!.... lol j/k

Muscle hypertrophy - Wikipedia, the free encyclopedia

Much better.

There are two different types of muscular hypertrophy: sarcoplasmic and myofibrillar (muscles also increase in size due to a small amount of hyperplasia but this contribution is minimal). During sarcoplasmic hypertrophy, the volume of sarcoplasmic fluid in the muscle cell increases with no accompanying increase in muscular strength. During myofibrillar hypertrophy, the myofibrils, comprised of the actin and myosin contractile proteins, increase in number and add to muscular strength as well as a small increase in the size of the muscle. Sarcoplasmic hypertrophy is characteristic of the muscles of bodybuilders while myofibrillar hypertrophy is characteristic of extreme weightlifters.