Lecture 4 Flashcards
What are masters and Johnsons 4 stages of sexual response
Excitement
Plateau
Orgasm
Resolution
What are the two basic physiological processes that occur during masters and johnsons 4 stages?
Vasocongestion (blood engorgement)
Myotonia (muscular tension)
Erection is male phase 1. The blood rushes into…..
Cavernous bodies
Spongy body
What is the main vein that drains the blood from the penis and brings it back to the brain
Dorsal vein
(1)What controls the diameters of the blood vessels/arteries of penis
Smooth muscles
(1) Which state must you be in to have an erection?
Parasympathetic (so that your smooth muscles dilate)
Which hormone is responsible for sexual desire in both men and women ?
Testosterone
Viagra inhibits
PDE5 inhibitors … helps maintain the blood engorgement
In the excitement phase, what happens to the testes and scrotum
Testes elevate towards perenium
Skin of scrotum tenses, thickens and elevates
What are the 2 highways to an erection
Touch receptor
Conscious control
What are other situations that produce erections
Morning wood Sports General anesthetic Asphyxiation Pre-pubescent boys
During plateau stage for men, engorgement is becoming more accentuated. What happens to the glans, cowpers glands and scrotum
Penile glans colour depens
Cowper glans secrete “pre cum”
Scrotum thickens
What are the 2 steps to ejaculation
Orgasm phase
Emission phase
Expulsion phase
In emission phase, you want internal sphincter of prostate to close. Why?
Accumulation of secretion into ejaculatory duct
70% comes from seminal vesicles whereas 30% comes from prostate
What happens if there’s damage to internal sphincter of the prostate?
Retrograde ejaculation
When during emission phase are you at the point of no return?
When external sphincter closes
What happens during expulsion phase, also known as true orgasm phase
External sphincters open and close and base of penis contracts
What happens during resolution phase
All blood brough back to heart
What is the refractory period?
Men cannot get another erection. Depends on age
What happens during excitement phase for females
Vasocongestion of clitoris and outer labia and inner labia
Uterus starts to elevate up and away from vagina
Lubrication
What is the female equivalent to erection
Lubrication
What happens during plateau phase for females
Inner 2 thirds of vagina expands and lengthens
Clitoris disappears
Entrance of vagina becomes narrower thanks to orgasmic platform
What contracts during orgasm phase for females
Uterus, orgasmic platform, anal sphincter
What does multiorgasmic mean
Women can experience another orgasm very quickly after another one without having to go back to baseline
What percent of women need clitoral stimhlatiknto trigger orgasm
75%
Who coined the g spot
Dr. Graffenberg
G spot is not a spot. It’s a region which contains ______
Skene glans (paraureuthral glans)
What is homologous to the prostate
Skene glans
Smaller quantities of squirt are believed to be from _____ (composition of PSA)
Whereas larger quantities of squirt are believe to come from _____
Skene glands
Bladder
The g spot could be seen as a part of
Clitoral complex
What is the best position to orgasm
Any position allowing access to clitoris stimulation
Kaplans triphasic model is what kind of model
Cognitive physiological model
What are the 3 steps in kaplan’s triphasic model
Sexual desire
Vasocongestion (excitement)
Muscular contractions (orgasm)
What are 3 bacterial stis
Chlamydia
Gonorrhea
Syphilis
What is the main prevention for bacterial stis
Condoms
What are the most common main routes of transmission for bacterial stis
Penile vaginal and penile anal
What is the highest prevalent reportable STI in Canada?
Chlamydia
What are the main consequences from chlamydia and gonorrhea for women?
PID that can spread to Fallopian tubes and uterus and cause infertility
What is diagnosis of chlamydia and gonorrhea
Swab or urine sample
Who has the highest incidence of chlamydia
Heterosexual males and females aged 20-24
What are the consequences of chlamydia in men?
Can cause epidymitis (swelling and redness of scrotum) which can lead to urethritis and cause infertility
What is treatment of chlamydia
Oral antibiotics
What are symptoms of chlamydia
Usually ashmptomatic or minimal symptoms (mild discharge)
What are symptoms or gonorrhea
Pus like yellowing green discharge
Throat pain
Ghonorrea is highest among
Cnd men who have sex with men or travellers
What is consequence of gonorrhea to men?
Rarely, untreated can enter blood stream and affect joints; skin and tissues surrounding organs
What is the treatment for fhonorrea
Oral or injectable antibiotics
Injectable used if present in pharynx or consequences happen
Syphilis is not common in general population. What is the diagnosis
Blood test to detect antibodies
What is primary syphilis
Swelling of lymph nodes and painless ulcers
Usually subsides in 3 weeks
What’s secondary syphilus
Rash on hands, sole of feet and trunk. May also include legions, fever ….
What is Tertiary syohilis
Affects blood vessels, heart, eyes and sensory/brain damage
Heightens risk of HIV
What is treatment of syphilis
Injected penicillin (diffused through brains membrane)
What are 4 viral STIS
Herpes, HPV, HIV, Viral hepatitis
Herpes has higher prevalence in
Women
What is the most prevalent on reportable STI in Canada
HPV
What is the route of transmission of HPV
Skin to skin
