Because of its location in the center of North America, the Twin Cities region is subjected to some of the widest range of temperatures in the United States. Temperatures in the Twin Cities region range from an average of 15.6 Â°F (â9.1 Â°C) in January to 73.8 Â°F (23.2 Â°C) in July.
Histology of the Dorsal Root Ganglion. Many of the cell bodies of the sensory and motor neurons of the peripheral neves are grouped into nodules or swellings called ganglia. There are two major types of ganglia in the peripheral nervous system: the craniospinal ganglia contain the cell bodies of sensory neurons of cranial and spinal nerves. The autnomic ganglia of the autonomic nervous system contain the cell bodies of the motor neurons of autonomic nerves.
The visceral mass is the fleshy, boneless, body of the mollusk which contains all the internals of mollusks such as digestive system, excretory system and circulatory system. The tissues of the organs are covered by a mantle. It is a skin-like organ that holds the materials in the shell.ollusks have a body without a cavity, has more than two layers of cell layers, tissues and organs. Mollusks are soft bodied animals with three main regions: head, visceral mass, and foot. The head of the mollusk contains the sense organs such as the brain. It has a pair of eyes, a mouth, sensory and nervous structures.