21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-08-15 04:15:26

Uncategorized
FRAGMENT FROM NATURE considers for this and next weekend how humans came to have a nose. Embryologically, it is complex, and this only starts to make sense when comparative anatomy and evolutionary considerations come into the picture, resulting in a truly excellent case study of evo-devo (evolutionary/development) perspective on this hybrid organ. Viewing life forms from an evolutionary perspective made sense of inscrutable biology. But adding development int the mix solved Gordian knots. View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-08-16 05:18:42

Uncategorized
ACROSS TAXA. “Phylogenically, the respiratory nose develops between mouth and olfactory nose by rearrangement of the dermal bones of the secondary palate, which appears in early tetrapods. During development, the palatal shelves develop into the palatine processes of the maxillary bones, and with the vomer, palatine, pterygoid and inferior turbinate bones form the walls of the nasal cavity after regression of the transverse lamina.” http://www.wjgnet.com/esps/DownLoadFile.aspx?Type=Digital&SubType=2&DOI=10.5319%2Fwjo.v6.i2.33&FilePath=Pub%5C10.5319%5Cv6%5Ci2%5CWJO-6-33.doc View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-08-16 05:17:06

Uncategorized
EVOLUTIONARY CLUES. “Two major questions which can be addressed to this classic description are why the nose is formed by such a complex intricacy of different anatomical structures, and why the origin and formation of these are not found in the classic embryological description. Examining the formation of the nose in the evolution of species may, actually, give clues to the answers.” http://www.wjgnet.com/esps/DownLoadFile.aspx?Type=Digital&SubType=2&DOI=10.5319%2Fwjo.v6.i2.33&FilePath=Pub%5C10.5319%5Cv6%5Ci2%5CWJO-6-33.doc View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-08-16 05:15:52

Uncategorized
TWO SOURCES. “According to classical concept, the philtrum of upper lip, the nasal dorsum, septum, and primary palate originate from the development of the intermaxillary process, whereas the lateral walls of the nasal pyramid develop from the lateral nasal processes.” http://www.wjgnet.com/esps/DownLoadFile.aspx?Type=Digital&SubType=2&DOI=10.5319%2Fwjo.v6.i2.33&FilePath=Pub%5C10.5319%5Cv6%5Ci2%5CWJO-6-33.doc View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-08-16 05:14:08

Uncategorized
DEVELOPMENT CLUES. “During development, infolding of the olfactory placodes occurs, bringing the medial olfactory processes to form the septolateral cartilage while the lateral olfactory processes form the alar cartilages. The olfactory fascia unites these cartilages to the olfactory mucosa, that stays separated from brain by the cartilaginous olfactory capsule (the ethmoid bone forerunner).” http://www.wjgnet.com/esps/DownLoadFile.aspx?Type=Digital&SubType=2&DOI=10.5319%2Fwjo.v6.i2.33&FilePath=Pub%5C10.5319%5Cv6%5Ci2%5CWJO-6-33.doc View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-08-16 05:12:18

Uncategorized
SMELL FIRST. “The median nasal septum develops inferiorly from the roof of the nasal cavity. These valuable embryologic data do not explain the complex intricacy of the many anatomical structures comprising the nose. The evo-devo theory offers a rational explanation to this complex anatomy. Phylogenically, the nose develops as an olfactory organ in fish before becoming respiratory in tetrapods.” http://www.wjgnet.com/esps/DownLoadFile.aspx?Type=Digital&SubType=2&DOI=10.5319%2Fwjo.v6.i2.33&FilePath=Pub%5C10.5319%5Cv6%5Ci2%5CWJO-6-33.doc View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-08-17 03:41:32

Uncategorized
INDIGENOUS PEOPLES from outside of the Western culture have lived with intimate connections with forests and with plants since humanity began. Their views about plant lives, and how the live in close connection with plants, are radically distinct from the Western Socratic perception. View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-08-17 03:37:50

linkedin post 2020-08-17 03:37:50

Uncategorized
PLANT EXPEDITIONS. “As the 18th century became the 19th, ethnobotany saw expeditions undertaken with more colonial aims rather than trade economics such as that of Lewis and Clarke which recorded both plants and the peoples encountered use of them. Edward Palmer collected material culture artifacts and botanical specimens from people in the North American West (Great Basin) and Mexico from the 1860s to the 1890s. Through all of this research, the field of "aboriginal botany" was established—the study of all forms of the vegetable world which aboriginal peoples use for food, medicine, textiles, ornaments and more.” https://en.m.wikipedia.org/wiki/Ethnobotany View in LinkedIn
Read More