PSYCH 2810 Lecture Notes - Lecture 5: Vas Deferens, Ejaculation, Vasectomy
Document Summary
56% of women rated their partner"s penis average . 50% of penises are between 5. 3 and 5. 8 girth measurements vary more. The average vagina is the same length as the average penis. The function of the foreskin is to keep the glans protected and lubricated. Frenar band function is elastic and keeps everything covered and moist. Frenulum is the most sensitive part of the penis; barely present, if at all, with circumcised men (25-33% of nerve endings have been removed in circumcised men: foreskin reduces the friction during sex. The penis slides in and out of the foreskin. Prostate gland produces 30% of the semen volume. Bulbourethral gland (cowper"s gland)- pre-cum, neutralizes the ph in the urethral, cleans out urine before semen is ejected. Vas deferens- moves sperm from testes to the base of the penis for ejaculation; what is clipped during a vasectomy.
