2 edition of Studies on the glandula uropygalis of birds found in the catalog.
Studies on the glandula uropygalis of birds
Written in English
|Statement||by Hsiang-chʻuan Hou.|
|Series||McGill University publications. Series XIV (Physiology), no. 35|
|LC Classifications||QP1 .M16 no. 35|
|The Physical Object|
|Pagination||1 p.l., p. 345-379, 1 l.|
|Number of Pages||379|
|LC Control Number||34014092|
That title goes to Balanus glandula, which wows the tide pool with its prodigious barnacle penis. Permanently cemented to a tidal rock, the barnacle sports a penis 40 times the size of its body. H. A predator-prey system in the marine intertidal region. I. Balanus glandula and several predatory species of Thais. Ecol. Statistical analysis in psychology and education. McGraw-Hill Book Co., New York. FRANK, P. W. The biodemography of an intertidal snail population. Roosts and roosting habits of the Dipper. Bird Study.
Intestinal type: identical to typical cystitis glandularis but with presence of goblet cells &. In patients with long-standing inflammation (indwelling catheters, calculi, etc.), intestinal type cystitis glandularis may become diffuse, at which time is suggested as a possible risk for bladder adenocarcinoma, although this association is currently controversial. the best criterion for distinguishing some natural groups of birds both at the family and generic levels. The glands are best developed in aquatic birds. However, Burton () pointed out that the oil gland is very small in Man- o’-war birds (Fregutu aquda) ; when birds of this species were shot their.
In considering the physiological role of the uropygial gland, it appears that the gland is not necessarily present in all groups of birds. These results suggest that the uropygial gland may not relate, at least physiologically, to the homeostasis of lipids or to the regulation of calcium metabolism. Biogeography of Birds There are a number of ways to distinguish species of birds, the most common being morphology. Beaks, scales on legs, jaw muscles, syrinx, feather tracts, etc. all work to some degree. Physiological aspects also work – blood serum proteins, hemoglobin, and bile salts have all been used as taxonomic characters.
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The present work is based on our earlier studies on the chemistry of skin surface lipids (Haahti, ; Haahti & Horning, ). A comparative scanning of the preen gland lipids of some birds representing different families as well as the effect of the extirpation of the preen gland of chickens was thus chosen as the subject of this by: Search uropygial gland [glandula uropygialis] and thousands of other words in English definition and synonym dictionary from Reverso.
You can complete the definition of uropygial gland [glandula uropygialis] given by the English Definition dictionary with other English dictionaries: Wikipedia, Lexilogos, Oxford, Cambridge, Chambers Harrap, Wordreference, Collins Lexibase dictionaries, Merriam.
The uropygial gland, informally known as the preen gland or the oil gland, is a bilobed sebaceous gland possessed by the majority of birds.
It is located dorsally at the base of the tail (between the fourth caudal vertebra and the pygostyle) and is greatly variable in both shape and some species, the opening of the gland has a small tuft of feathers to provide a wick for the preen oil.
I.S. Hodgson-Jones, V.R. Wheatley, Studies of Sebum 3. Methods for the collection and estimation of small amounts of sebum Biochem. J () H.C Hou, Studies on the glandula uropygialis of birds Chinese J. Physiol 2: () Relation of the preen gland (glandula uropygialis) of birds to rickets.
Feather mites (Arachnida: Acari: Astigmata) feed mainly on secretions of the uropygial gland of birds. Here, we use analyses corrected for phylogeny and body size to show that there is a positive correlation between the size of this gland and mite abundance in passerine birds at an interspecific level during the breeding season, suggesting that the gland mediates interactions.
In vertebrate anatomy, the pituitary gland, or hypophysis, is an endocrine gland, about the size of a pea and weighing grams ( oz) in humans. It is a protrusion off the bottom of the hypothalamus at the base of the hypophysis rests upon the hypophysial fossa of the sphenoid bone in the center of the middle cranial fossa and is surrounded by a small bony cavity (sella turcica.
Thymus gland. The thymus gland, a part of your immune system situated in the upper chest beneath the breastbone, may trigger or maintain the production of antibodies that result in the muscle weakness.
In this class we study Chapter 5 of the Book Alert from the spirit Joanna de Angelis through the mediumship of Divaldo Franco. The uropygial gland is an exocrine gland located above the tail of birds that produces a diverse range of biochemicals.
It has been hypothesized to be involved in chemical protection, water-proofing and maintenance of plumage brightness. Although these not necessarily mutually exclusive functions have received some empirical support, there has been little empirical research on the function of.
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Hou HC () Studies on the glandula uropygialis of birds. Am J Physiol Google Scholar Hsu WS () The Golgi material in the oil glands of chicken, sparrow and pigeon: Its behaviour and topographical relationship to the secretory granules. The uropygial (oil or preen) gland is a paired structure found at the base of the tail in most bird species (Johnston, ), and it is particularly large in many aquatic bird species (Stettenhein, ; Montalti and Sakibián, ; Vincze et al., ).It has been proposed that the bird's level of interaction with water appears to affect the size of the gland: several fully aquatic birds.
Diseases of the Uropygial Gland Summary: The uropygial gland, when present, is a bilobed holocrinc gland with secretions that perform several functions in birds, including waterproofing (although not essential for it), manufacturing vitamin D precursors, keeping the skin, feathers, and bill supple, and performing antibacterial function.
Many problems with this gland are secondary to. In birds is diagnosed in both hyperplastic and colloid forms (the first subtype is the most frequent form diagnosed in the companion birds) (Glazener and Jull, ; Schmidt and Reavill, Cows Grazing on Locoweed. Cows, as well as other ungulates such as sheep and horses, will sometimes seek out a plant called “locoweed”.
This intoxicating plant acts as a tranquilizer, putting animals into a stupor of calmness. 4 Many times, animals will stand in place for extended periods after consuming locoweed, seemingly uninterested in socialization or any other activity.
Examples of how to use “uropygial gland” in a sentence from the Cambridge Dictionary Labs. Uropygial gland definition is - a large gland that occurs in most birds, opens dorsally at the base of the tail feathers, and usually secretes an oily fluid which the bird uses in. Greenish Warbler (Phylloscopus trochiloides) is a species of bird in the Phylloscopidae family.
Subspecific information 4 subspecies Phylloscopus trochiloides trochiloides (c. Abstract. Harderian glands occur in the orbita of all vertebrates except fishes, completely aquatic amphibians and primates.
In birds, Harder’s gland is the dominant orbital gland (Walls ) and besides a lubricating and cleaning function, it plays an important part in.
college Learn with flashcards, games, and more — for free.The uropygial gland is lacking in some species but its waterproofing ability is essential to water birds.
() 3. Oil-secreting gland situated at the base of the tail in most birds. () Syn: glandula uropygius,(informal) preen gland, oil gland. .Uropygial, or preen, glands are found in a variety of avian species including penguins. These glands have a multitude of functions and can develop a variety of conditions including impaction, rupture, adenitis, squamous metaplasia, and neoplasia of various types, with squamous cell carcinoma the most commonly reported.
A case series of uropygial gland squamous cell carcinoma in five penguins.