Sexual response cycle

Feb 14, 2017 | 0 comments

Feb 14, 2017 | Miscellaneous | 0 comments

Sexual response cycle is a term used in describing the changes that take place in the body of women and men when they become sexually aroused (University of Minnesota & Multi-Media Resource Center, 2007). According to Masters& Johnson (1966), the biological responses of females and males to sexual response cycle or sexual stimulation are quite similar. The sexual response cycle is divided into four phases, which includes; excitement, plateau, orgasm and resolution phases. Caldwell et al (2002) pointed out that myotonia and vasocongestion characterize sexual response cycle. Vasocongestion is the swelling with blood of the genital tissues. This results into penis erection and swelling with blood in the vaginal opening surrounding area. Furthermore, the nipples, testes and the earlobes swell as the vessels of blood dilate in these body parts. Myotonia, on the other hand, is muscle tension. It results into spasm in the feet and hand, facial grimaces, and finally the orgasm spasms.

  1. The excitement phase

Masters and Johnson (1966) indicated that the first phase of sexual response cycle is the excitement phase. This gets characterized by vaginal lubrication among the females and erection in males. Moreover, in both males and females, heart rate increases and they exhibit myotonia. In young men, vasocongestion causes erection 3-8 seconds after the onset of sexual stimulation. The scrotal skin becomes thick and less baggy. The testes also become elevated and increases in size.

The vaginal lubrication in women starts 10-30 seconds after the onset of sexual stimulation. The clitoris swells due to vasocongestion and the vaginal lips spreads and flattens. Moreover, the inner vaginal parts expand, breast enlarges and the surface blood vessels become prominent.

University of Minnesota et al (2007) pointed out that in the excitement phase, both male and female shows similar features like the rosy sex flush skin which more pronounced in women. Furthermore, the nipples in both men and women become erect blood pressure and heart rate also increases.

  1. Plateau phase
  1. Masters, W. H., Johnson, V. E., & New York Academy of Medicine,. (1966). Human sexual response. Boston: Little, Brown and Company.
  2. University of Minnesota., & Multi-Media Resource Center. (2007). Anatomy and physiology of sexual response cycles. Minneapolis: The Program.
  3. Caldwell, K., & Multi-Media Resource Center. (2002). Sexual response cycle. San Francisco: Multi-Media Resource Center.