Male Body/STDS Psych 2070
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This 11 page Class Notes was uploaded by Alma G on Thursday October 1, 2015. The Class Notes belongs to Psych 2070 at Georgia State University taught by Dr. Swartout in Fall 2015. Since its upload, it has received 33 views. For similar materials see Intro to Human Sexuality in Psychlogy at Georgia State University.
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Date Created: 10/01/15
Chapter 6 Male Sexual Anatomy and Physiology Lecture Notes Additional Notes External Genitalia Foreskin o Circumcision quotcutting around the penis 2025 of world population 55 of males in US population more popular than other places in the world Varies geographically within the US Religious signi cance in Islam and Judaism Not really for Christianity 0 Due to tradition o Jew boys have 8 day old ceremony Foreskin is retracted and cut off leftover goes over head and is sewn up with little blood Male genital mutilation Not considered since it is quotnormalquot in the society while female genital mutilation seen as quotinhumanequot 0 Double standards in society No medical indication for it at birth quotwow it looks weird let him get circumcised foreskin retracts normally Inability to retract foreskin at birth is NOT reason to circumcise Pros Reduction of urinary tract infancy still lt1 low risk Lowers risk of acquiring some STDs and HIV 0 In less clean countries can see a distinction in risk Lowers risk of penile cancerincredibly rare cancer occurs in foreskin but cancer is generally rare infections in 0 Kid won t look quotdifferent social excuse to look like other little boys Cons 0 Surgical riskinfection risk in hospitals 0 Reduced sensitivity not a lot of difference between men that are and are not circumcised American Academy of Pediatrics no absolute medical indication for routine circumcision of the newborn not needed a choice hemorrhage low I o The Penis no bones only spongy tissue 0 0 Root attaches to body shaft connects to corona and head of penis Corpora cavernosa 2 bulk of erectile tissue ll with blood during an erection Corpus spongiosum 1 maintains space around urethra during erection spongy material during erection Protects urethra from collapsing when corpora cavernosa lls with blood Urethra common tube for urine and semen Covered by corpus spongiosum Urethral meatus opening of urethra same for females Penis Glans mostly corpus spongiosum head of the penis Rim corona or coronal ridge of head Frenulum underside of penis Can be pierced Penis Size 0 Only way to make it longer is surgery 2 12 3 inches accid average 56 inches erected Cut the ligaments to extend penis 0 Only way to make it thicker is through fat injections 0 Most that undergo procedure are unsatis ed shape continues to change overtime o Shaving and weight loss can make penis look bigger Obesity increases pubic fat pad that hides the penis 0 Scrotum o loose bad of skin that contains two testicles descends down the body to the scrotum as boy develops 0 some hair and sweat glands vents scrotum to keep cool 0 one usually lower than the other normal for many men to help prevent crushing o cremaster muscle contracts when cold and during orgasm when hot relaxes and testicles hang freely Internal Genitalia Testes produces and store sperm 0 Cremaster muscle moves to keep sperm at a healthy temp Need to be 712 degrees below body temperature 0 Secretes testosterone control hormone for males 0 In testes Seminiferous tubules smallest tubes that produces sperm 0 Starts at the beginning of puberty producing 150 million a day 0 Site of sperm production spermatogenesis Epididymis as sperm begins to mature in seminiferous tubules will move to epididymis Sperm maturation Vas deferens transports sperm to rest of reproductive system 0 Testicular Cancer 74K in US per year 400 fatalities Consistent but not the largest killer Usually in 2535 year olds Lump pain detected sudden increase in size Males should examine themselves to check for abnormalities Family history frequent marijuana use increased risk Treatment 0 radiation and chemotherapyaffects fertility removal of testicle o prosthetic option for esthetic fake testicle in scrotum to make it look normal Seminal Vesicles2 adds thick secretion at ejaculation 0 Transportation adds proteins and enzymes as nutritional value in the semen along with sperm to keep them alive as they travel to the egg Prostate Gland1 contains alkaline uid secreted at ejaculation o Nourishes uid for sperm and helps neutralize the acidic pH of vagina to keep sperm alive Cowper s Gland2 quotprecum lubricates urethra and ushes urine prior to ejaculation gets urethra ready for semen and sperm to go through 0 No sperm but can mix with sperm from previous ejaculation unless urination occurred Anus as a SeX Organ Applies to both males and females Penetration or oral or manual stimulationtoys Kept closed due to anal sphincter muscles 0 Holds everything in the rectum 0 External muscle under conscious control 0 Internal muscle under control of autonomic nervous system Most sensitive here place where can get sexual pleasure Rectum lowest GI tract 0 Fairly large less sensitivity why people put toys there and can feel stimulation 0 Not selflubricating no glands in anus and need to use lube for comfort Prostate Issues Prostatitis in ammation acute or chronic O O 0 Can occur once or chronic constant in ammation Acute due to urinary tract infection Can occur in young men Not as common in men due to long urethra Causes urge to pee burning vomiting fever forceful urination STDs and anal sex can create infection due to close irritation 0 Prostate Cancer 0 Most commonnon skin cancer in men 220K in US per year 27K mortality in US per year 2r101 largest in cancer mortality Two times more common in African American men Average age of diagnosis 70 years old Screening starting at age 45 0 Important to selfexamine o Detected by increasing prostatespeci c antigen PSA 0 Treatment active surveillance if male is too old knowing it will be chronic and will probably die before the cancer kills them surgery radiation chemotherapy younger men willing to take treatment 0 risk 0 erectile dysfunction 0 urinary incontinence 0 Increased risk if smoke obese 0 Semen o Seminal vesicle uid 70 as sperm is moving from vas deferens that adds nutrients o Prostate 8 Cowper s uid 30 prostate secretes uid to neutralized vagina Cowper s gland secretes precum o 96 water Translucent with white grey yellowish tint Tastes what the male drinks and eats o Salty trace amounts of nutrients Fructose vitamin C sodium bicarbonate proteins magnesium potassium and zinc 0 Volume 35 mL one teaspoon of liquid Sperm 200400 million sperm 1 of sperm 0 Have to be extra careful and be protected Chapter 15 STIs Sc HIVAIDS STIs Who s at risk 0 Approximately 50 occur in people 1524 years old 0 Highest risk racialethnic minorities men who have sex with men Minorities tend to go to public clinic that will report information more than private clinics Men who have sex with menMSM do not always identify as gay and will use less protection Notion of casual sex common in the society increases risk of catching an infection 0 Women are at greater risk of longterm complications Fragile vaginal tissue penis is less fragile Semen stays in vaginal tract can keep the infection in place for a while increasing risk of STIs 0 Every year 19 million cases are reported 0 Education access to healthcare SES Less education no access to healthcare and having no money 0 People will rather eat than get tested 0 Often asymptomatic no symptoms are visible Latency period infection not visible and spread infection during period Attitudes about STIs 0 Sign of quotcorruptedquot sexuality don t know how to have sex correctly or have a deviant sexuality Punishment concept of diseasequotA person got what they deserved o Beliefs interferes with testing and treatment Don t want to be judged for catching an STIs Creates stigma guilt shame depression 0 Fear of how society will think of them STI while Pregnant 0 Miscarriage 0 Infection of developing fetus Through the placenta directly to the fetus Ex syphilis Need to be treated to lower risks of fetus developing infections 0 Infection of newborn baby During breast feeding Ex HIV Can be contracted during vaginal birth Pubic Lice Crabs 0 Bacterial infection that lives on the skin in the pubic hair 0 highly contagious visible to the naked eye 0 Symptoms itching when lice bite leave saliva causing allergic reaction 0 Treatment OTC creams and shampoo long process to kill babies Clean sheets and clothes in hot water and dryer cycles Gonorrhea quotThe Clap 0 Bacterial infection that lives in mucous membrane EX eyes throat vagina cervix Spread through mucous contactvulva vulvavulvamouth 0 Higher incidence among young Black men and women 26X more in AA men than White men 16X more in AA women than White women 0 Higher rates in Southern states Less sex education and promote abstinence instead of informing about infections and protection 0 Symptoms urethral discharge painful urination increase in frequency urgency to urinate Typically asymptomatic in women 0 Treatment Antibiotics easy to get rid when getting treated Syphilis 0 Bacterial infection that occurs in 55400 year 0 Higher incidence among young Black men 0 Three stages 1 Chancres sores around the genitals that show up 1090 days after infected Not painful on the penis vagina mouth lips etc 2 Chancers disappear and invades CNS Rash occur fatigue headaches fever etc 3 If not treated yet can be fatal neurological attack 0 Infection goes into remission but can still be contagious for a year Psychological symptoms and attacks entire body Facial deformity 0 Chlamydia 0 Most common bacterial STI in US 2860000 year Higher in African American men and women in general 0 Rates higher in South 0 Usually asymptomatic quotsilent disease 0 Symptoms Burning during urination and during intercourse pain in lower abdomen Discharge from penis pain in testicles In women can cause infertility 0 Treatment Antibiotics IIerpesIIerpes Simplex Virus IISV 0 Viral infection will never get rid of it in life only can control it 0 Oral herpes and genital herpes HSV 1mouth and face reoccur when stressed sick asymptomatic most of the time 0 Usually transmitted before people are even sexually active because they don t experience blisters or ulcers 0 HSV 2genitals 1 in 5 adults in America since most people don t realize that they have it and spread it 0 Highly contagious even if it is not visible skinto skin contact lIuman PapillomaviruslIPV 0 very common most common STI in US more than 6000000 year 1 in 2 sexually active men and women 0 Most types have no symptoms some cause genital warts Connection between cervical cancer 0 Preventative vaccines starting at age 1 1 Gardasil 3 doses over 6 months both boys and girls protects from 4 most common HPV HIVAIDS o 11 million people in US 5000060000 year Out of those with HIV 55 are gay men 40 African American men 0 HIVHuman Immunode ciency Virus transmitted through bodily uids semen pregnancy and breast milk Attacks T Helper cells which impairs immune system that protects body from bad infections 0 No cure only treatment Highly Active Antiretroviral TherapyHAART drug cocktails Opportunistic diseases attack and compromise immune system Infections that attack body when immune system declines Can kill before the actual HIVAIDS virus kills you 0 AIDSAcquired Immune De ciency Syndrome If HIV positive and not in treatment AIDS in 810 years If treated does not always develop into AIDS if take pills properly a Body will resist pill effectiveness if not taking properly