Look up velum in Wiktionary, the free dictionary.

Velum may refer to:

  • Superior medullary velum, part of the nervous system that stretches between parts of the brain
  • Veil (botany), the veil-like membrane of immature mushrooms extending from the margin of the cap to the stem and torn by growth
  • Velum, the locomotory and feeding organ provided with cilia, that is found in the larval veliger or "velum-bearing" stage of bivalves such as mussels and oysters
  • Velum, the circular membrane around the cap of a Cubozoa or jellyfish, which helps with propulsion. Also present in Hydrozoa
  • Velum, the soft palate behind the hard palate
  • Velum, a thin flap of tissue completely or partially covering the adaxial wall of the sporangium in species of Isoetes

See also [link]

  • Vellum, animal skin that is similar to parchment and that is used as medium for writing, book printing, and book binding

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Soft palate

The soft palate (also known as velum or muscular palate) is, in mammals, the soft tissue constituting the back of the roof of the mouth. The soft palate is distinguished from the hard palate at the front of the mouth in that it does not contain bone.

Structure

Muscles

The five muscles of the soft palate, play important roles in swallowing and breathing. The muscles are:

  • Tensor veli palatini, which is involved in swallowing
  • Palatoglossus, involved in swallowing
  • Palatopharyngeus, involved in breathing
  • Levator veli palatini, involved in swallowing
  • Musculus uvulae, which moves the uvula

    • These muscles are innervated by the pharyngeal plexus via the vagus nerve, with the exception of the tensor veli palatini. The tensor veli palatini is innervated by cranial nerve 5 branch V3 (which is the mandibular division of the trigeminal cranial nerve).

    Function

    The soft palate is moveable, consisting of muscle fibers sheathed in mucous membrane. It is responsible for closing off the nasal passages during the act of swallowing, and also for closing off the airway. During sneezing, it protects the nasal passage by diverting a portion of the excreted substance to the mouth.

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    This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Soft_palate

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