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  2. Anatomical terms of location - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terms_of_location

    For example, as humans are approximately bilaterally symmetrical organisms, anatomical descriptions usually use the same terms as those for other vertebrates. [59] 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. [ 60 ]

  3. Anatomical terminology - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terminology

    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]

  4. Anatomical terms of neuroanatomy - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terms_of_neuro...

    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.

  5. Prone position - Wikipedia

    en.wikipedia.org/wiki/Prone_position

    In anatomy, the prone position is a position of the human body lying face down. It is opposed to the supine position which is face up. Using the terms defined in the anatomical position , the ventral side is down, and the dorsal side is up.

  6. Anatomical plane - Wikipedia

    en.wikipedia.org/wiki/Anatomical_plane

    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 and non-human anatomy, three principal planes are used: The sagittal plane or lateral plane (longitudinal, anteroposterior) is a plane parallel to the sagittal suture. It divides the body ...

  7. Contralateral brain - Wikipedia

    en.wikipedia.org/wiki/Contralateral_brain

    The optic tract grows from the retina to the optic tectum. Because dorsal and ventral are inverted in the anterior head region, the tracts grow at first toward the ventral side, to meet in the midline to form a chiasma. Since the optic tectum lies on the dorsal midbrain, each tract then continues dorsally to the contralateral optic tectum. [10]

  8. Anatomical terms of motion - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terms_of_motion

    Motion, the process of movement, is described using specific anatomical terms.Motion includes movement of organs, joints, limbs, and specific sections of the body.The terminology used describes this motion according to its direction relative to the anatomical position of the body parts involved.

  9. Glossary of spider terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_spider_terms

    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 ]