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A selective dorsal rhizotomy (SDR), also known as a rhizotomy, dorsal rhizotomy, or a selective posterior rhizotomy, is a neurosurgical procedure that selectively cuts problematic nerve roots in the spinal cord. [3][note 1] This procedure has been well-established in the literature as a surgical intervention and is used to relieve negative ...
Anatomical terminology. [edit on Wikidata] In amniotes, the clitoris (/ ˈklɪtərɪs / ⓘ KLIT-ər-iss or / klɪˈtɔːrɪs / ⓘ klih-TOR-iss; pl.: clitorises or clitorides) is a female sex organ. [1] In humans, it is the vulva 's most erogenous area and generally the primary anatomical source of female sexual pleasure. [2]
In mammals, the vulva (pl.: vulvas or vulvae) comprises mostly external, visible structures of the female genitalia leading away from the interior parts of the female reproductive tract, starting at the vaginal opening. For humans, it includes the mons pubis, labia majora, labia minora, clitoris, vestibule, urinary meatus, vaginal introitus ...
the part of the antenna distal to the pedicel composed of one or more segments, called flagellomeres. foramen magnum. (Anatomical feature) the posterior opening of the head capsule, covered by the cervix. forewing. (Anatomical feature) the pair of wings of a four-winged insect closest to the head.
e. Standard anatomical terms of location are used to describe unambiguously the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on.
The dermatome is the dorsal portion of the paraxial mesoderm somite which gives rise to the skin . In the human embryo, it arises in the third week of embryogenesis . [ 2 ] It is formed when a dermomyotome (the remaining part of the somite left when the sclerotome migrates), splits to form the dermatome and the myotome. [ 2 ]
Development of the tracheal system in Drosophila melanogaster. An insect 's respiratory system is the system with which it introduces respiratory gases to its interior and performs gas exchange. Air enters the respiratory systems of insects through a series of external openings called spiracles. These external openings, which act as muscular ...
subesophageal ganglion. mouthparts. Insect morphology is the study and description of the physical form of insects. The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. Three physical features separate insects from other arthropods: they have a body divided into three ...