| 释义 |
neurohypophysis Med.|njʊərəʊhaɪˈpɒfɪsɪs|
[f. neuro- + hypophysis.]
The portion of the hypophysis that develops from the embryonic brain, comprising the posterior lobe and usually the infundibulum and median eminence, and differing from the adenohypophysis in having little glandular activity and in being richly supplied with nerve fibres, which originate in the hypothalamus (being the means by which the latter exercises its control of the hormonal activity of the anterior lobe) and release the hormones oxytocin and vasopressin following their production in the hypothalamus.
1912H. Cushing Pituitary Body & its Disorders i. 2 The tip becomes thickened into the infundibular body (neurohypophysis, or pars nervosa). Ibid. 3 The neuro⁓hypophysis itself is connected with the tuber cinereum by a stalk which varies in length in different species. 1939Res. Publ. Assoc. Res. Nerv. & Mental Dis. XX. 24 It is convenient to regard the neurohypophysis as being divisible into two major divisions, namely, the neural lobe and the neural stalk. 1954L. C. Martin Clin. Endocrinol. (ed. 2) i. 2 The neural division or neuro-hypophysis consists of the pars nervosa or infundibular process, the pituitary stalk or infundibular stem, and the median eminence of the tuber cinereum. 1968A. van Tienhoven Reproductive Physiol. Vertebr. viii. 249/1 Some of the hypothalamic hormones, e.g. oxytocin and vasopressin, are stored in the neurohypophysis. 1968Passmore & Robson Compan. Med. Stud. I. xxv. 15/2 The neurohypophysis is a point of contact between neurological and hormonal control mechanisms. 1972Sci. Amer. Nov. 24/3 This double organ..is the pituitary gland, or hypophysis. The part that migrated from the brain is the posterior lobe, or neurohypophysis; the part that migrated from the pharynx is the anterior lobe, or adenohypophysis. |