THE PHARMACOLOGY AND ANATOMY OF THE HYPOPHYSIS OF THE PORPOISE<sup>1</sup>¹

Geiling, E. M. K.; Vos, B. J.; Oldham, Frances K.

doi:10.1210/endo-27-2-309

Cited by 22 publications

(3 citation statements)

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“…Similarly, in all forms so far examined, the pars tuberalis bears a constant relation to the hypophysial portal vessels, in that the upper capillaries in the tuber cinereum arise from the plexus of vessels situated in this part of the gland. Even in the pituitary of the porpoise, which possesses a thick dural septum between the infundibular process and the pars distalis (Geiling, Vos & Oldham, 1940), the pars tuberalis passes upwards anterior to the septum, and contains a highly developed system of portal vessels continuous with the sinusoidal loops and tufts of the tuber cinereum (Harris, 1947 b).…”

Section: Resultsmentioning

confidence: 99%

Electrical stimulation of the hypothalamus and the mechanism of neural control of the adenohypophysis

Harris¹

1948

The Journal of Physiology

134

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The means whereby the external environment influences the activity of most endocrine glands is unknown. There is no sound evidence that the thyroid, adrenal cortex or gonads possess a secretomotor nerve supply, and it is likely that the trophic hormones of the pituitary gland are the major factors which directly control their activity. The position regarding environmental influence over these glands would be clarified then if a neural or neuro-vascular connexion could be demonstrated between the adenohypophysis (anterior pituitary) and the central nervous system, particularly the hypothalamus.To investigate the control which the hypothalamus may exert over the secretion of the adenohypophysis a technique for applying prolonged electrical stimulation to these structures in conscious animals has been devised. By this method it is possible to stimulate up to six rabbits simultaneously for several hours daily over periods of weeks or months.

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Section: Resultsmentioning

confidence: 99%

Electrical stimulation of the hypothalamus and the mechanism of neural control of the adenohypophysis

Harris¹

1948

The Journal of Physiology

134

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“…Nevertheless, reports reveal that the human pars intermedia is well developed (Murakami et al, 1968) and α-MSH is also found in the pituitary of the fetus and the neonate (Silman et al, 1978;Mauri et al, 1993). Whales and dolphins lack the pars intermedia, however, they do not lack POMC-related peptides that are produced by melanotrophic cells present in the pars distalis (Geiling et al, 1940). These results suggest that the pars intermedia of the pituitary gland is an essential organ in mammals and that POMC-related peptides produced by melanotrophic cells may have other important physiological functions in mammals besides melanogenesis.…”

Section: Histocytology Of the Pars Intermedia (Fig 1)mentioning

confidence: 80%

The Mammalian Pars Intermedia —Structure and Function—

Takeuchi¹

2001

Zoological Science

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“…12). However, nerve cells have been observed within the neurohypophysis of the porpoise by Geiling, Vos, and Oldham (23). Oldham also has reported neurons in the neurohypophysis of the armadillo (24), and Shanklin has seen them in the dog (25), chick (26), and human (27).…”

Section: Discussionmentioning

confidence: 99%

FINE STRUCTURE OF THE NEUROHYPOPHYSIS OF THE OPOSSUM (DIDELPHIS VIRGINIANA)

Roth

Luse

1964

The Journal of Cell Biology

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The neurohypophysis of the opossum (Didelphis virginiana) was studied by electron microscopy in order to amplify Bodian's classic light microscopic observations in which he demonstrated a definite lobular pattern. The lobule of the opossum neurohypophysis is divided into three regions: a hilar, a palisade, and a septal zone. The hilar portion contains bundles of nerve fibers, the extensions of the hypothalamo-hypophyseal tract containing neuroftlaments but few neurosecretory granules. In the opossum, pituicytes have a densely fibrillar cytoplasm. Herring bodies are prominent in the hilar region. They are large bodies packed with neurosecretory granules that have been described as end bulb formations of axons. From the hilar region, axons fan out into a palisade zone where the nerve terminals packed with neurosecretory granules, mitochondria, and microvesicles abut upon basement membranes. The neurosecretory granules are similar to those present in the neurohypophysis of other mammals, except for an occasional huge granule of distinctive type. Material morphologically and histochemically resembling glycogen occurs as scattered particles and as aggregates within nerve fibers. The septal zone, containing collagen, fibroblasts, and numerous small capillaries, is separated from the adjacent glandular tissue by a basement membrane.

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THE PHARMACOLOGY AND ANATOMY OF THE HYPOPHYSIS OF THE PORPOISE¹¹

Cited by 22 publications

References 0 publications

Electrical stimulation of the hypothalamus and the mechanism of neural control of the adenohypophysis

Electrical stimulation of the hypothalamus and the mechanism of neural control of the adenohypophysis

The Mammalian Pars Intermedia —Structure and Function—

FINE STRUCTURE OF THE NEUROHYPOPHYSIS OF THE OPOSSUM (DIDELPHIS VIRGINIANA)

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THE PHARMACOLOGY AND ANATOMY OF THE HYPOPHYSIS OF THE PORPOISE1¹

Cited by 22 publications

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Electrical stimulation of the hypothalamus and the mechanism of neural control of the adenohypophysis

Electrical stimulation of the hypothalamus and the mechanism of neural control of the adenohypophysis

The Mammalian Pars Intermedia —Structure and Function—

FINE STRUCTURE OF THE NEUROHYPOPHYSIS OF THE OPOSSUM (DIDELPHIS VIRGINIANA)

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THE PHARMACOLOGY AND ANATOMY OF THE HYPOPHYSIS OF THE PORPOISE¹¹