Washington â The 3,000-mile (4,800-km) mass migration of monarch butterflies in North America is one of the insect world's fantastic feats, with millions embarking on the arduous journey from as far north as Canada down into Mexico and the California coast each autumn.
(November 2007). The glomerulus (plural glomeruli) is a spherical structure located in the olfactory bulb of the brain where synapses form between the terminals of the olfactory nerve and the dendrites of mitral, periglomerular and tufted cells.November 2007). The glomerulus (plural glomeruli) is a spherical structure located in the olfactory bulb of the brain where synapses form between the terminals of the olfactory nerve and the dendrites of mitral, periglomerular and tufted cells.
The glomerulus consists of a coil of capillary lobes that receives blood from the afferent arterioles and drains into the efferent arterioles. It is located within the Bowman's capsule, which forms the beginning of the renal tubule. The glomerulus serves as a non-selective filter of plasma substances not greater than a molecular weight of 70,000.