• pouch
  • The cheek pouch is a specific morphological feature that is evident in particular subgroups of rodents (i.e. (wikipedia.org)
  • The true cheek pouch, however, is evident in the former Heteromyidae and Geomyidae groups. (wikipedia.org)
  • The widely distributed Rattus rattus is an example organism of the Muridae family of rodents that lack a true cheek pouch, rather, they exhibit more elastic cheeks (not true pouches) due to the organization of their cheek musculature. (wikipedia.org)
  • Concerning the musculature, the cheek pouch is composed primarily of a developed masseter (cheek) muscle that exhibits a high tensile ability. (wikipedia.org)
  • The pouch is clearly divided between a buccal (cheek) and sublingual (below the tongue) portion. (wikipedia.org)
  • region
  • Heteromyidae and Geomyidae (or Gopher)), yet a common misconception is that certain families, like Muridae (including the common black and brown rats), contain this structure when, in actuality, their cheeks are merely elastic due to a high degree of musculature and innervation in the region. (wikipedia.org)
  • volume
  • Volumetric analyses within this study attributed the differences in net cheek volume between male and female rats to the average size of the respective sexes. (wikipedia.org)
  • mouth
  • Cheek pouches are located in the thickness of the flange on both sides of the mouth of some mammals. (wikipedia.org)
  • Cheek pouches contribute to the protection of animals by allowing them to carry their food in the pouches to shelter, allowing them to transport their food to safer locations, as they are pressing these pouches to the back of the mouth with the back of the leg, or moving the jaw. (wikipedia.org)
  • Surgical access to the cheek is done from inside the mouth high up under the upper lip so there is no visible scar. (exploreplasticsurgery.com)
  • form
  • The cheeks can become hollow and wrinkles form which makes you look older than your actual age. (cosmedicentre.com.au)
  • Étienne Geoffroy Saint-Hilaire described that some bats of the genus Nycteris have an amazing form of cheek pouches, as they have a narrow opening, through which the bat can introduce air, closing the nasal canal through a special mechanism and pushing air under the skin, so they expire in the tissue, which unites the very loose skin to the underlying muscles. (wikipedia.org)
  • structure
  • Cheek pouches are more pronounced in certain rodents, such as hamsters, yet this structure is also distinguishable on certain species of rat, like the Gambian pouched rat, of which extensive morphological investigations have been conducted. (wikipedia.org)