→ The oviducts (fallopian tubes), uterus and vagina constitute the female accessory ducts.
→Structure of Oviducts:
→ Each fallopian tube is about 10-12 cm long.
→ It extends from the periphery of each ovary to the uterus.
→ The part closer to the ovary is the funnel-shaped infundibulum.
→ The edges of the infundibulum possess finger- like projections called fimbriae, which help in collection of the ovum after ovulation.
→ The infundibulum leads to a wider part of the oviduct called ampulla.
→ The last part of the oviduct, isthmus has a narrow lumen and it joins the uterus.
→ Structure of Uterus :
→ The uterus is single and it is also called womb.
→ The shape of the uterus is like an inverted pear.
→ It is supported by ligaments attached to the
pelvic wall.
→ The wall of the uterus has three layers of tissue.
(i) The external thin membranous perimetrium.
(ii) middle thick layer of smooth muscle, myometrium.
(iii) inner glandular layer called endometrium that line the uterine cavity.
→ The endometrium undergoes cyclical changes during menstrual cycle while the myometrium exhibits strong contraction during delivery of the baby..
→ The uterus opens into vagina through a narrow cervix.
→ The cavity of the cervix is called cervical canal which along with vagina forms the birth canal.