Studies on the endocrines of reptiles. I. The morphology of the pituitary gland of the lizard (Anolis carolinensis) with special reference to certain cell types

Poris, Ethel G.; Charipper, Harry A.

doi:10.1002/ar.1090720409

Anat. Rec.

1938

DOI: 10.1002/ar.1090720409

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Studies on the endocrines of reptiles. I. The morphology of the pituitary gland of the lizard (Anolis carolinensis) with special reference to certain cell types

Ethel G. Poris

Harry A. Charipper

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1939

1951

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Cited by 22 publications

References 14 publications

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Seasonal cytological changes in the anterior hypophysis of the garter snake

Hartmann

1944

Am. J. Anat.

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FOUR TEXT FIQURES AND OXYE PLATE (TWELVE FlGURES)The present study was made in an attempt to determine the normal variations exhibited throughout the year by the cells of the pars distalis of the hypophysis of the male garter snake. The relative percentages of these cells were found to be considerably different at different seasons, and certain cytological changes accompanying the quhitative fluctuations were detectable. The possible relation between tbese seasonal changes and the male reproductive cycle is briefly considered, and mill be reported in detail in the future.From the literature that has accumulated in recent years as a result, of morphological, developmental, and experimental studies on the hypophyeis, the desirability of studying normal structural changes in the gland in relation to physiological phenomena of tho organism becomes increasingly important. An understanding of such normal variations in the anterior hypophysis is felt to be of value not only as an addition to the fund of basic information on the anterior hypophysis in general, but also as a basis for understanding and evaluating experimental work already reported, and as a reference point

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Seasonal cytological changes in the anterior hypophysis of the garter snake

Hartmann

1944

Am. J. Anat.

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Some evidences of specific secretory activity of the anterior pituitary gland of the cat

Dawson

1946

Am. J. Anat.

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The comparative anatomy of the hypophysis, with special reference to its blood supply and innervation

Green

1951

Am. J. Anat.

282

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This paper is primarily concerned with the coniparative anatoiiiy of pituitary vessels and nerves. Other aspects of the histology aiid cytology of the gland will also be considered, especially in those species which have received little attention. Except in the niammals, little is known about hypophyseal vessels arid accounts of the innervation of the hypophysis a r e inadequate arid contradictory.Shorter investigatioiis of these structures in some common laboratory mammals (Green and IIarris, '46, '47) , in several amphibians (Green, '47) and in man (Green, '48) have been made. Evidence was brought forward (Green and Harris, '46, '47; Green, '46; Harris, '48) that these vessels a r e SO disposed that they may carry substances f r o m the mediaii eminence to the pars distalis. It was indicated that such an arrangemcrit might be concerned in the regulation of the adenohypophysis by the nervous system and that this hypotliesis did, in fact, accord very well with the experimental evidence. The possibility that the hypophysioportal system may play a p a r t in regulating the activity of the pars distalis has, of course, been foreseen by several observers, e.g. TTiiisep ( '37) , Brooks ( '38) and Harris ( '44). Taubellhaus and ' J o h n and hlnry R. lllnrkle ScIiolar in Medical Sciencr. 2% 226 J O H N DAVIS GREEN PITUITARY VESSELS A N D NERVES 227 numbers in parentheses represent the numbers of spec+iiiiciis. NIaiiy otlier pituitaries were studied in less detail. Cephalochorda : Anvphioxus laiweolatus (36). Cyclostomata : A m m o c e t e s (Entosphenus laiiiotteiiii) (4), Entosphewus lai~otteizii, adult (4) , Ichthyomytaoiz uizicrcspis (1 ), Pctrontyzon, wzarinus (11). Elasmobranchii : Selachii -Sq~ualus acniithias ( 2 ) : Eatoidea -Rnja erivzacca (a), Raja stabuliforiizis ( I ) , R a j a d i a p h a m s (1).

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Studies on the endocrines of reptiles. I. The morphology of the pituitary gland of the lizard (Anolis carolinensis) with special reference to certain cell types

Cited by 22 publications

References 14 publications

Seasonal cytological changes in the anterior hypophysis of the garter snake

Seasonal cytological changes in the anterior hypophysis of the garter snake

Some evidences of specific secretory activity of the anterior pituitary gland of the cat

The comparative anatomy of the hypophysis, with special reference to its blood supply and innervation

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