Retroverted or Curled Epiglottis. We came across a curled epiglottis recently as part of a cervical spine evaluation. Keats does not list this as a variant. The otoaryngology literature describes a retroverted epiglottis touching the base of the tongue that can cause symptoms of globus pharyngeus.The symptoms resolved in this case series of 4 patients following laser excision of the retroverted part of their epiglottis.eats does not list this as a variant. The otoaryngology literature describes a retroverted epiglottis touching the base of the tongue that can cause symptoms of globus pharyngeus. The symptoms resolved in this case series of 4 patients following laser excision of the retroverted part of their epiglottis.
Reinforced steel mesh is used heavily in the construction industry, to strengthen concrete slabs and limit cracking. The reinforcing steel mesh is stocked in three grades A142, A193, and A252. Mesh aperture size 200mm x 200mm. Mesh sheet size 2400mm x 1200mm.
Versus the nanotubeâs neatly organized, tightly bonded configuration, carbon fiber is what quantum chemists call turboÂ­stratic, meaning flat layers, each one a single carbon atom thick, stacked somewhat haphazardly on top of one another. The carbon nanotubeâs superior atomic-bonded crystal structure is what makes it the strongest, stiffest material known to man and nearly 20 times stronger per pound than carbon fiber. Carbon Fiber: In comparison to a nanotube, carbon fiberâs turbostratic structure is messier and weaker.