Physiological Reactions & Human Sexual Response

• Vasocongestion- the filling of a tissue with blood caused by increased blood flow through the arteries.
• Myotonia - increased muscle tension of both skeletal and smooth muscles.
• Excitement Phase - preparation of penis and vagina for coitus.
• Vasocongestion - erection of the penis and clitoris.
• Myotonia - nipple erection or tension of the arms and legs.
• Plateau Phase - a depression that receives sperm at the back of the vagina is formed.
• Plateau Phase - breathing increases and heart rate rises, sometimes to 150 beats per minute as an involuntary response to stimulation of the autonomic nervous system.
• Orgasm Phase - characterized by the rhythmic, involuntary contractions of the reproductive structures in both sexes.
• Orgasm Phase - Is the shortest response of the sexual cycle, usually lasting only a few seconds.
• Resolution Phase - completes the cycle and reverses the responses of the earlier stages.