Ventral Root of Spinal Nerve. The ventral root (motor root) of each spinal nerve consists of axons from motor neurons whose cell bodies are found within the gray matter of the spinal cord. A ventral root and a dorsal root unite to form a spinal nerve, which passes outward from the vertebral canal through an intravertebral foramen (bone opening). A posterior branch (posterior ramus) of each spinal nerve turns toward the posterior to innervate muscles and skin of the back.
Studies to date suggest that the planktonic-biofilm transition is a complex and highly regulated process. The results reviewed in this article indicate that the formation of biofilms serves as a new model system for the study of microbial development.tudies to date suggest that the planktonic-biofilm transition is a complex and highly regulated process. The results reviewed in this article indicate that the formation of biofilms serves as a new model system for the study of microbial development.
To better understand andcontrol biofilms on indwelling medical devices, researchers should develop reliable sampling andmeasurement techniques, investigate the role of biofilms in antimicrobial drug resistance, and establish thelink between biofilm contamination and patient infection.ol. 7, No. 2, MarchâApril 2001 277 Emerging Infectious Diseases Special Issue Microbial biofilms develop when microorganisms irre-versibly adhere to a submerged surface and produceextracellular polymers that facilitate adhesion and provide astructural matrix.