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XXIV.—The Innervation of the Human Quiescent Nipple, with Notes on Pigmentation, Erection, and Hyperneury

Published online by Cambridge University Press:  06 July 2012

E. P. Cathcart ,
F. W. Gairns  and
H. S. D. Garven
E. P. Cathcart
Affiliation:
Institute of Physiology, University of Glasgow.
F. W. Gairns
Affiliation:
Institute of Physiology, University of Glasgow.
H. S. D. Garven
Affiliation:
Institute of Physiology, University of Glasgow.
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Extract

It has been known from antiquity that involution of the uterus is aided by putting the child to the breast, and the work of Moir (1933) has demonstrated conclusively that suckling brings about waves of contraction of the puerperal uterus. Since suckling must necessarily involve stimulation of the nipple, it seemed of interest to know what sensory apparatus is present in the nipple to receive these stimuli. While histological studies of the mammary gland itself have been numerous, only slight attention has been paid to the histological structure of the areola and the nipple.

It must be appreciated from the outset that the present study is devoted to the innervation of the nipple in the quiescent breast. There may be considerable change during pregnancy and lactation, not only in the size of the organ and its epithelium but also in the other structures. It has been shown that there is an increase in the number of nerve-fibres in the actively secreting mammary tissue, and it is possible that there is an increase in the nerve-structures of the nipple also. The richness of the innervation in the quiescent nipple certainly makes a further study of these nerve-structures during pregnancy and lactation of great interest.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 61 , Issue 3 , 1949 , pp. 699 - 717
Copyright
Copyright © Royal Society of Edinburgh 1949

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