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The sublingual region underneath the front of the tongue is an ideal location for the administration of certain medications into the body. The oral mucosa is very thin underneath the tongue, and is underlain by a plexus of veins.
The tongue starts to develop at about four weeks. The tongue originates from the first, second, and third pharyngeal arches which induces the migration of muscles from the occipital myotomes. A U-shaped sulcus develops in front of and on both sides of the oral part of the tongue.
The oral cavity is bounded at the sides and in front by the alveolar process (containing the teeth) and at the back by the isthmus of the fauces. Its roof is formed by the hard palate. The floor is formed by the mylohyoid muscles and is occupied mainly by the anterior two-thirds of the tongue.
The body of the hyoid bone is the central part of the hyoid bone. [clarification needed]At the front, the body is convex and directed forward and upward. It is crossed in its upper half by a well-marked transverse ridge with a slight downward convexity, and in many cases a vertical median ridge divides it into two lateral halves.
The tip of the tongue ; The upper front surface of the tongue just behind the tip, called the blade of the tongue ; The surface of the tongue under the tip ; The body of the tongue which is sometimes further divided into front and back; The base a.k.a. root of the tongue and the throat
The lingual nerve supplies general somatic afferent (i.e. general sensory) innervation to the mucous membrane of the anterior two-thirds of the tongue (i.e. body of tongue) (whereas the posterior one-third (i.e. root of tongue) is innervated via the glossopharyngeal nerve (CN IX) [citation needed]), the floor of the oral cavity, and the mandibular/inferior lingual gingiva.
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Gross anatomy - systemic or region-wise study of human body parts and organs.Gross anatomy encompasses cadaveric anatomy and osteology.; Comparative anatomy - the study of evolution of species through similarities and differences in their anatomy.