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About

Sexual intercourse may be called coitus, copulation, coition, or intercourse. Coitus is derived from the latin word coitio or coire, meaning a coming together or joining together or to go together, and is known under different ancient latin names for a variety of sexual activities, but usually denotes penilevaginal penetration. In human beings, a pattern of physiological events occurs during sexual arousal and intercourse. These events may be identified as occurring in a sequence of four stages excitement, plateau, orgasm, and resolution. The basic pattern is similar in both sexes, regardless of the specific sexual stimulus. Sexual intercourse the act of inserting the erect penis of the male into the vagina of the female for reproduction and also for sexual enjoyment. The terms sexual intercourse and coitus are used in reference to people. The term for the higher vertebrates and some other animals is copulation.   human physiology is a free online course on janux that is open to anyone. The anatomy of intercourse the muscles of the vagina contract and grip the penis. The clitoris retracts and the pressure on the clitoral hood during penetration may stimulate it indirectly. Human sexual anatomy & physiology major features & functions. Chapter 12 lesson 15 transcript video quiz & worksheet - sexual anatomy & physiology in humans quiz course try it risk-free for. The physiology of arousal in the male is elicited in numerous ways. The neurological mechanisms are what we have an interest in for this course. Sensory organs detect anal stimulation, skin stimulation, perineal stimulation as well as friction on the glans penis. All of these sensations are transmitted via the pudendal nerve to the sacral plexus. Coitus and conception are the initial stages that occur in humans that allow for the establishment of pregnancy. Sexual intercourse that results in the deposition of sperm in the vagina at the level of the cervix is known as coitus. In order for coitus to occur humans need to be sexually aroused. Browse 26,810 human sexual intercourse images stock photos and images available, or start a new search to explore more stock photos and images.

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