Search results
Results From The WOW.Com Content Network
For example, as humans are approximately bilaterally symmetrical organisms, anatomical descriptions usually use the same terms as those for other vertebrates. [8] However, humans stand upright on two legs, meaning their anterior/posterior and ventral/dorsal directions are the same, and the inferior/superior directions are necessary. [ 57 ]
The anatomical position, with terms of relative location noted. Anatomical terms used to describe location are based on a body positioned in what is called the standard anatomical position. This position is one in which a person is standing, feet apace, with palms forward and thumbs facing outwards. [11]
For example, a striatal afferent is an afferent originating at the striatum. An efferent nerve fiber is one that arrives at the present point. For example, a cortical efferent is a fibre coming from elsewhere, and arriving to the cortex. That is the opposite of the direction in which the nerve fibre conducts signals.
Forms terms denoting conditions relating to eating or ingestion Greek φαγία (phagía) eating < φᾰγεῖν (phageîn), to eat Trichophagia-phago-eating, devouring Greek -φᾰ́γος (-phágos), eater of, eating phagocyte: phagist-Forms nouns that denote a person who 'feeds on' the first element or part of the word
An anatomical plane is a hypothetical plane used to transect the body, in order to describe the location of structures or the direction of movements. In human anatomy and non-human anatomy, four principal planes are used: the median plane, sagittal plane, coronal plane, and transverse plane.
Anatomical "lines", or "reference lines," are theoretical lines drawn through anatomical structures and are used to describe anatomical location. The following reference lines are identified in Terminologia Anatomica: Anterior median line; Lateral sternal line: A vertical line corresponding to the lateral margin of the sternum.
Most of the principal terms can be combined using their corresponding combining forms (such as mesio-for mesial and disto-for distal). They provide names for directions (vectors) and axes; for example, the coronoapical axis is the long axis of a tooth. Such combining yields terms such as those in the following list.
Venter (or ventrum): The lower (ventral) portion or surface of the body or abdomen; the adjective ventral may be applied to the lower portion or surface of any part of the body; see dorsum Vulva : The internal copulatory organs of a female spider, including the copulatory ducts , spermathecae , and fertilization ducts [ 33 ]