. The endocrine organs; an introduction to the study of internal secretion . A B FIG. 48.—Blood-supply of the pituitary body. (Dandy and Goetsch.) A. Arterial blood-supply,seen from the ventral aspect. A large number of small arteries are seen converging fromthe circle of Willis to the neck of the gland, which has itself been removed. B. Venousblood-supply. The principal veins are shown passing from the pituitary to a venous circle,which roughly corresponds with the arterial circle of Willis. Both figures show the partssomewhat magnified. media may extend for some distance into the pars nervos
. The endocrine organs; an introduction to the study of internal secretion . A B FIG. 48.—Blood-supply of the pituitary body. (Dandy and Goetsch.) A. Arterial blood-supply,seen from the ventral aspect. A large number of small arteries are seen converging fromthe circle of Willis to the neck of the gland, which has itself been removed. B. Venousblood-supply. The principal veins are shown passing from the pituitary to a venous circle,which roughly corresponds with the arterial circle of Willis. Both figures show the partssomewhat magnified. media may extend for some distance into the pars nervosa between itsneuroglial fibres; they impart to it an important functional significance,which will be referred to later in considering the mode of secretion ofthe pars intermedia. It is not difficult to split the gland across the middlein the situation of the intraglandular cleft, thus separating the larger parsanterior from the combined pars nervosa and pars intermedia. When sucha separation is effected the term posterior lobe has been given to parsnervosa plus pars int
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