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V.THE FEMALE REPRODUCTIVE SYSTEM

A.Organs (continued)

4.Vagina: See Fig 22.19a, page 899

.

a.passageway from cervix to outside;

b.serves to receive erect penis, to convey uterine secretions, and to transport offspring during birth.

c.The hymen is membrane composed of epithelium and Connective tissue, which partially closes the vaginal orifice.

5.Labia: See Fig 22.19a, page 899 and Fig 22.30, page 906.

a.external organs;

b.enclose and protect underlying organs and tissues;

c.composed of labia majora and labia minora.

d.The space enclosed by the labia minora = vestibule of vulva.

6.Clitoris: See Fig 22.19a, page 899 and Fig 22.30, page 906.

a.external excitatory organ;

b.small projection at the anterior end of the labia which corresponds to the male penis;

c.composed of two columns of erectile tissue.

* Erection   =erectile tissues of clitoris become engorged with blood and swell during sexual stimulation.

* * Orgasm    =rhythmic contraction of muscles of perineum, uterine wall and fallopian tubes, which result in a feeling of psychological and physiological release.

See Fig 22.31, page 907.

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