Psychology 2075 Midterm: Test 2 Textbook Notes.docx

• School: Western University
• Department: Psychology
• Course: Psychology 2075
• Professor: Erin Demaiter

Document Summary

Erection: corpora cavernosa and the corpus spongiosum full with blood, erection may be produced by direct physical stimulation or erotic thoughts (paralyzed people need direct stimulation, vasocongestion happens very quickly, and in young men erection can happen within seconds, age, intake of alcohol and being tired will impact how fast, closer to orgasm a man gets he may see little drops of clear fluid (from the. Cowper"s gland) not ejaculate, they may contain a few sperm: several arteries supply the corpora cavernosa and cs for an erection to happen these arteries must dilate (vasodilation), at the same time these veins are compressed to prevent out flow (which is why there is an erection, multiple neurotransmitters involved (nitric oxide, viagra operates on the no system, reverse process: called vasoconstriction (for example after orgasm, the neurotransmitters epinephrine and norepinephrine are involved, note: when looking at the diagrams you can tell the difference between excitement and plateau because the penis turns purply.