Pterylae
WebDefinition of pterylae in the Definitions.net dictionary. Meaning of pterylae. What does pterylae mean? Information and translations of pterylae in the most comprehensive dictionary definitions resource on the web. WebDefinition of pterylae in the Definitions.net dictionary. Meaning of pterylae. What does pterylae mean? Information and translations of pterylae in the most comprehensive …
Pterylae
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WebFeathers are not arranged haphazardly on the bird, but in major distinct tracts called pterylae. The featherless areas between the pterylae are called apteria. Types of feathers. As there are different types of hair on furred animals, birds have different kinds of feathers, each having a particular function. The types of feathers include: WebFeb 25, 2011 · Unlike mammals whose hair sprouts uniformly from the skin, most birds’ feathers sprout in tracts called pterylae with bare patches of skin between them. Pterylae …
WebMar 30, 2024 · 1.1.1 实验材料 本实验所用水生植物材料为小水榕（Anubias nana）、金鱼藻(Ceratophyllum demersum）、黑藻（Hydrilla verticillata）、矮珍珠（Glossostigma elatinoides）、香菇草（Hydrocotyle vulgaris）、虎耳草（Saxifraga stolonifera）、南美青竹（Tradescantia albiflora）、绿菊（Cabomba ... feather patterns of passerines. In passeriform: Plumage and pterylosis. …from relatively narrow tracts (pterylae) in the skin. From the pterylae the feathers fan out and cover the remainder of the bird’s body. In passerines, the feathers are arranged in eight distinguishable tracts, with apteria (relatively bare skin) … See more …arranged in feather tracts (pterylae) separated from one another by regions of almost naked skin (apteria). The only exceptions are the ostrichlike birds, the … See more …from relatively narrow tracts (pterylae) in the skin. From the pterylae the feathers fan out and cover the remainder of the bird’s body. In passerines, the feathers … See more
Webpter·y·la. (tĕr′ə-lə) n. pl. pter·y·lae (-lē′, -lī′) An area on the skin of a bird from which feathers grow. [New Latin : Greek pteron, wing, feather; see -pter + Greek hūlē, forest, matter .] American Heritage® Dictionary of the English Language, Fifth Edition. WebDefine pterylae. pterylae synonyms, pterylae pronunciation, pterylae translation, English dictionary definition of pterylae. n. pl. pter·y·lae An area on the skin of a bird from which …
Webarrangement of feathers. In feather. …areas of bare skin (apteria) between. The latter may contain the small soft feathers called down. Read More. In bird: Feathers. …separated by bare areas (apteria) and develop from follicles in the skin. Read More.
WebContour feathers grow in tracts (pterylae) separated by bare areas (apteria) and develop from follicles in the skin. Other articles where tail feather is discussed: bird: Feathers: …wing (remiges) and tail (rectrices) and their coverts function in flight. Contour feathers grow in tracts (pterylae) separated by bare areas (apteria) and develop ... google docs best featuresWebThe feathers of primitive birds appear to grow at random all over the body, but in most orders the feathers appear in well defined patterns of rows or tracts called pterylae. The number of feathers a bird has depends very much on its size, its lifestyle and where it lives, generally, a third of a birds feathers are located on its head. google docs bewerbungsformularWebPterylae definition: any of the tracts of skin that bear contour feathers , arranged in lines along the body... Meaning, pronunciation, translations and examples LANGUAGE … chicago health and human servicesWebSep 1, 2004 · Induction and analysis of supplementary pterylae (sp) in the midventral apterium (mva). (A) Microsurgical procedure: fragments of 2-dayold ventral neural tube plus chord, or aggregates of cells ... chicago health and rehab clinicWebImprove bird's hearing ability. Pterylae. tracts where feathers are located; Feathers in pterylae overlap one another. Apteria. bare areas of skin between pterylae. Feather mites. can chew and consume parts of the feather vanes. wear and tear. lighter tips of flight and tail feathers can be worn off. google docs bifold templateWebفي أسفل الريش توجد أشواك غشائية طليقة، وظيفتها العزل، وتوجد في Pterylae و Apteria، في الطيور البالغة.يتكون ريش الطيور من مادة - موسوعة - الموسوعة العربية الشاملة يتكون ريش الطيور […] chicago healthcareWebd) Pterylae contradict an initially thermoregulatory role. e) Feathers are fundamentally designed to be aerodynamic structures. The first of these objections is entirely irrelevant, as no one postulates that down feathers seen in extant birds represent the original feather morphology in any context, whether thermoregulatory or aerodynamic. google docs bild hinter text