Chap. XXI] 



SUMMARY 



465 



Physiology 

 of Gen- 

 erative 

 Organs 



Changes in 

 connection 

 with men- 

 struation 



Connection 

 between ovu- 

 lation and 

 menstruation 



Mammary 

 Glands 



Function ( ^o^^^ation and development of ovum. 



I Retention and sustenance of fecundated ovum. 

 Puberty — Age at which sexual organs become matured and 

 functional. Girl changes to woman. 



Ovulation / ^^°^*^^^ ^^ development and maturation of fol- 

 [ licle and ovum, and discharge of ovum, 

 f A flow of blood from the uterus. Occurs on an 

 average every twenty-eight days. Extends 

 from puberty (14 years) to the menopause, 

 or climacteric (about 45 years). This period 

 represents the child-bearing period of a 

 woman's life. 



1. General congestion of genera- 

 tive organs including 

 breasts. 



2. Hypertrophy and congestion 

 Menstrua- I connection I of mucous membrane of 



tion 1 with men- I uterus. 



Capillary hemorrhage. Epi- 

 thelium is cast off. 

 Following menstruation a new 

 epithehum is formed. 

 ' Probably dependent on internal 

 secretion of ovaries, and pos- 

 sibly is aided by power in- 

 herent in uterine muscle. 

 Purpose — Nature's way of preparing uterine 

 I walls for reception of fertilized ovum. 

 I Menopause — Physiological cessation of the menstrual flow. 

 Accessory organs of generation. 

 Function — To secrete milk to nourish infant. 

 Location / ^^^nd from second to sixth rib. 

 I Sternum to arm-pit. 



' Outer surface convex — papilla projects from 

 centre — called nipple — contains openings 

 of milk ducts. Nipple surrounded by areola. 

 Consists of connective tissue framework which 

 divides the gland into about twenty lobes. 

 Lobes are subdivided into lobules. 

 Lobules are made up of the terminal tubules 



of the duct. 

 Each lobe possesses its own excretory duct, 

 I which is called lactiferous and is sacculated. 



r Axillary. 



< Internal mammary. 

 I Intercostal. 



Structure 



Blood- 

 vessels 



2h 



