In the ovary, Estrogens from granulosa cells are secreted into follicular fluid: [Estrogen] is very high in ovarian follicular fluid Steroid Egg highly specialized A possible function is maternal mRNA production in the maturing oocyte.
Flagstaff. 1  See the Museum of Northern Arizona in Flagstaff. 2  Ski Arizona Snowbowl (or in summer go to the top of Mt. Humphries on a ski lift) 3  See the Indian Ruins at Walnut Canyon near Flagstaff.  Lowell Observatory in 1  Flagstaff. Explore the past at Walnut Canyon National Monument.  Camp or hike at the Flagstaff Nordic Center.
While the Grand Canyon might be the most famous attraction in Arizona, equally beautiful is Antelope Canyon, a slot canyon in the Navajo Nation. It was carved by flash floods gradually eroding through the sandstone and is one of the most photographed and most stunning slot canyons in the world.