A diagram is a two dimensional geometric symbolic representation of information according to some visualization technique. Sometimes, the technique uses a three dimensional visualization which is then projected onto the two dimensional surface. The word graph is sometimes used as a synonym for diagram.
A diagram is a 2D geometric symbolic representation of information according to some visualization technique. The technique uses a 3D visualization which is then projected onto the 2D surface. The term diagram in common sense can have two meanings.
The tongue is a muscle on the floor of the mouth that manipulates food for chewing and swallowing. It is the primary organ of taste, as much of the upper surface of the tongue is covered in papillae and taste buds. A secondary function of the tongue is speech, in which the organ assists. It is sensitive and kept moist by saliva, and is richly supplied with nerves and blood vessels to help it move.
The tongue receives its blood supply primarily from the lingual artery, a branch of the external carotid artery. The floor of the mouth also receives its blood supply from the lingual artery. The triangle formed by the intermediate tendon of the digastric muscle, the posterior border of the mylohyoid muscle. In area is the lingual artery, a good place to stop uncontrolled bleeding in the tongue.
There is also secondary blood supply to the tongue from the tonsillar branch of the facial artery and the ascending pharyngeal artery.
In addition to eating, the human tongue has many secondary uses. These include certain forms of kissing known as tongue kissing or sometimes french kissing in which the tongue plays a primary role. Use of the tongue, or interaction between tongues, appears to be a common gesture of affection, not just in humans but throughout the animal kingdom, and particularly in mammals.
Because of its use in both the phenomenon of human sexual interactions, the tongue sometimes is associated with a sensual or erotic connotation. In art the human tongue is often depicted as a seductive instrument, similar to the status of the lips.
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