The Medulla Oblongata's General Functions. Whereas the pons is located in the upper part of the brainstem, the medulla oblongata is a structure located in the lower half of the brainstem. Just because the medulla oblongata is beneath the pons, doesn't mean it's any less significant. In fact, they often work in tandem on issues such as breathing.
Cirrus are detached clouds in the form of white, delicate filaments or white or mostly white patches or narrow bands. These clouds have a fibrous (hair-like) appearance, or a silky sheen, or both. Cirrus clouds are composed almost exclusively of ice crystals. These crystals are in general very small, a fact, which together with their sparseness, accounts for the semi-transparency of most cirrus clouds.
Cirrus Clouds are high altitude, wispy clouds, seen in fine weather. Cirrostratus Clouds are made up of ice particles and form a halo around the sun. If a Cirrus filled sky darkens and turns to Cirrostratus it is a sign of rain or snow, depending on temperature. Altostratus Couds form a greyish veil over the sun or moon.