Chapter 5 Male Sexual Anatomy and Physiology
Erection Coordinated by autonomic nervous system Arteries expand Capacity for erection is present at birth Psychogenic (mind) physiogenic erections (body)
Penis Size Penis size is seen as a symbol of virility Erect penises show less variation than flaccid Size NOT related to sexual satisfaction Penile augmentation #1 cosmetic surgery for British men Genital retraction syndrome (GRS) Koro, shrinking into body
Concerns about Sexual Functioning Phimosis Extremely tight foreskin Circumcision Hygenic value & risk for STDs? Medical risks Mutilation, shock, psychological trauma American Academy of Pediatrics moderate opposition Sexual satisfaction
Male Genital Health: Penis Health-Care Issues Cleanliness Smegma (dead skin cells, can cause infection) Allergic reaction to vaginal secretions Injuries Don’t use vacuums! Penetration
Male Genital Health: Testicle Health-Care Issues Penile Cancer Over 50, multiple partners, poor hygiene, herpes Testicular Cancer Rare More common in young men (15 to 34 years old) Hard or irregular mass Survival > 90% if detected early Most have normal sexual pleasure post surgery
Male Genital Health: Prostate Cancer Higher among Black men Lower survival rate too Genetic, hormonal, nutritional factors Lacks easily detectable symptoms Digital rectal examination Prostate specific antigen Detectable by blood test