Chapter 2.Sexuality.assignment Final.docx - Chapter 2...

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Chapter 2 – Sexual Anatomy Christopher Charleston In your text, review the 4 main reasons to study sexual anatomy – starts on p. 34. I. Historical Perspectives - for most of human history, sexual anatomy has been seen as shameful, and not a proper topic for discussion or research. Because of this attitude, mistaken and sometimes baffling ideas about sexual anatomy have been accepted. Your text lists some of these mistaken assumptions. Which one do you find most interesting, and why? The mistaken assumption I found most interesting is that people used to think sperm came from male brains. I think its interesting because reproductive organs are no where near the brain and it doesn’t make sense. II. The Male Sexual Body A. The Penis is the male organ used in sexual intercourse, as well as a conduit for urine. The human penis contains neither bones nor muscle, although there are muscles that control urination and ejaculation at the base of the penis. Instead, the penis contains three cylinders of spongy erectile tissue, which fill up with blood and stiffen during sexual arousal. 1. The corpora cavernosa are the larger two of the cylinders. These fill up with blood and stiffen during sexual arousal. 2. The corpus spongiosum is the cylinder that runs along the bottom surface of the penis. It contains the urethra - define – the tube that goes from the bladder to urethral opening. It carries urine out of women and men and sperm for men. 3. The penile glans , or head, of the penis is extremely sensitive to sexual stimulation. It is separated from the body of the penis by the corona , AKA the coronal ridge . a. The foreskin define – a layer of skin that covers the glans of the penis b. A secretion called smegma may accumulate below the foreskin, allowing bacteria to flourish. Smegma normally provides lubrication between the foreskin and the glans. b. Circumcision define – removal of the outer skin of a penis Reasons for circumcision include religious rites, prevention of transmission of sexually transmitted infections, a reduced risk of urinary tract
infection (UTI), and a belief that it enhances hygiene. It is generally accepted, however, that circumcision lessens sexual sensations. DO NOT ATTEMPT TO RETRACT YOUR SON’S FORESKIN. Do you think it is ok for parents to choose circumcision for their infants? Why or why not?
4. The body of the penis is called the penile shaft . Unlike the clitoris, it is free-swinging, such that when it is engorged with blood, erection is obvious.

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