PSY 3122 Lecture Notes - Lecture 3: Clitoral Erection, Human Penis Size, Vaginal Lubrication
9 Oct 2013
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Lecture 3 and 4 september 16th and 30th 2013. Clitoris the only part of the body that has only one purpose, sexual pleasure. Vulva changes colour based on whether one has given birth or not blood during pregnancy makes the change in colour, which stays throughout life people. 5 cm soft, and 4-6 hard, clitoris has 3 times the nerve endings then the penis. Except, bartholin"s glands 2, one on each side, used to be believed to be responsible for vaginal lubrication, but this is not true, Sperm require a much more normal ph environment then normally present at the vaginal opening, the glands make it easier for sperm to survive. Hymen breaks when you lose your virginity: hymen surrounds your vaginal opening, and it"s always open, when you are born, have sex, give birth or die. Three layers of tissue: mucus membrane (inner layer), muscular tissue (middle layer), elastic fiber tissue (outer layer) very elasticy.
