Cell size and cell division of the anterior pituitary: time course in the growing rat.
Pituitary cells increase their numbers more than 3-fold during the 1st 10 days of life while maintaining the same cell size ratios. In the 25-day-old animal, the rate of cell division slows and there is a slight increase in the number of large cells. An increase in adult weight is attributed to hyperplasia and a shift to a population of larger cells.
D000375:Aging; D000818:Animals; D000831:Animals, Newborn; D002452:Cell Count; D002455:Cell Division; D009929:Organ Size; D010902:Pituitary Gland / Q000166:cytology / Q000254:growth & development*; D051381:Rats