Sexual Response, Dysfunction, Arousal and Orgasm: Anatomy, Causes, Treatments

What initiates the female sexual response cycle?

Physiological changes in the external and internal sex organs.

What is the primary sensory organ involved in female sexual arousal?

The clitoris.

What physiological process causes the vagina to expand during arousal?

Vasocongestion.

What is the function of the cervix in the female reproductive system?

It serves as a passageway between the vagina and uterus.

What hormone do the ovaries secrete?

Estrogen, progesterone, and testosterone.

What characterizes female genital arousal?

Increased blood flow to the genitals leading to swelling and lubrication.

What are some physiological factors that can impact sexual arousal?

Decreased estrogen levels, nerve damage, and vascular diseases.

What effect does exercise have on female sexual arousal according to research?

Exercise can increase genital arousal in women.

What are some treatments for sexual arousal dysfunction in women?

Topical lubricants, estrogen creams, and clitoral therapy devices.

What is the placebo effect in the context of sexual function research?

A significant improvement in sexual function reported by women taking a placebo.

What are the categories of sexual dysfunctions?

Disorders of sexual desire, arousal, orgasmic disorders, and sexual pain disorders.

What model outlines the cycle of sexual response?

The linear model proposed by Masters and Johnson.

What cues can influence sexual desire?

Emotional bonding, explicit erotic cues, and evolutionary-based cues.

How do androgens affect sexual desire in women?

Androgens like testosterone play a significant role in enhancing sexual desire.

What psychological factors can impact sexual desire?

Depression, anxiety, and body image dissatisfaction.

What symptoms indicate low sexual desire?

Little interest in sexual activity, few sexual thoughts, and disinterest in initiating sex.

What pharmacological interventions are available for low sexual desire?

Estrogen and testosterone supplementation, and medications like flibanserin and bremelanotide.

What are the external structures of male sexual anatomy?

The penis and scrotum.

What is the role of the testes in male sexual anatomy?

Producing spermatozoa and testosterone.

What is the significance of the perineum in female anatomy?

It is the area between the vaginal opening and the anus, contributing to sexual response.

What is the average size of the uterus?

Approximately 3 inches long by 3 inches wide.

What is the role of vaginal lubrication?

Facilitates sexual activity and is produced by squamous epithelium cells in the vagina.

What can impair sexual desire and performance?

Antidepressants, antihistamines, and certain recreational drugs.

How does aging influence sexual desire?

Through health status, medication use, and beliefs about sex and aging.

What is the relationship between body image and sexual desire?

Body image dissatisfaction can significantly reduce sexual desire, especially in women.

What is the impact of unrealistic expectations on sexual relationships?

They can lead to frustration and ungratifying sexual experiences.

What is the effect of testosterone on sexual desire in women?

Higher testosterone levels, particularly mid-cycle, can increase sexual activity.

What is the role of emotional intimacy in sexual desire?

It can enhance sexual desire by fostering connection and trust between partners.

What is the primary function of the testes?

To produce spermatozoa and testosterone.

What role does testosterone play in male development?

It is crucial for the development of male reproductive organs, sperm production, and secondary sex characteristics.

How are sperm transported from the testes?

Through the epididymis and vas deferens.

What is semen composed of?

Sperm mixed with fluids from the prostate, seminal vesicles, and Cowper's glands.

What initiates sexual arousal in men?

Nerve signals that trigger the release of chemicals, increasing blood flow into the corpora cavernosa.

What is erectile dysfunction (ED)?

Persistent difficulties in obtaining or maintaining an erection, causing significant distress.

What are the age-related prevalence rates of ED?

7% of men aged 18-29, 18% of men aged 30-59, and over 50% of men over 60.

What physiological factors can contribute to ED?

Low testosterone levels, nerve damage, vascular diseases, kidney disease, spinal cord injuries, and high blood cholesterol.

How does chronic alcohol use affect sexual function?

It can reduce testosterone production and lead to testicular atrophy.

What psychological factors can influence ED?

Depression, anxiety, and performance anxiety.

What is Barlow's cognitive model in relation to sexual function?

It describes how sexually functional individuals experience a positive feedback loop, while dysfunctional individuals experience a negative feedback loop.

What treatments are available for ED?

Testosterone replacement therapy, PDE5 inhibitors, alprostadil injections, vacuum constriction devices, and psychological therapies.

What characterizes the psychological experience of female orgasm?

Mood changes, subjective perception of physiological events, and an altered state of consciousness.

What hormone is linked to the intensity of female orgasm?

Oxytocin.

What is female ejaculation?

The expulsion of fluid through the urethra during orgasm, which can include urine, diluted urine, or a milky-white fluid.

What anatomical distance is associated with a higher likelihood of orgasm during intercourse?

A distance of 2 cm or less between the clitoris and the urethral opening.

What is Female Orgasmic Disorder?

A marked delay, infrequency, or absence of orgasm on at least 75% of sexual occasions, causing distress.

What is the success rate of directed masturbation for treating Female Orgasmic Disorder?

88%-90%.

What physiological events accompany male orgasm?

Increased pulse rate, blood pressure, breathing, and body-wide muscle contractions.

What are the two genital events typically associated with male orgasm?

Emission and ejaculation.

What is Delayed Ejaculation?

Marked delay, infrequency, or absence of orgasm on at least 75% of sexual occasions, causing distress.

What is Early Ejaculation defined as?

Ejaculating within one minute of penile insertion on at least 75% of sexual occasions.

What percentage of men report experiencing early ejaculation at some point in their lives?

30-40%.

What are some physiological causes of early ejaculation?

Underlying erectile dysfunction, hormonal imbalances, low serotonin or dopamine levels, or penile hypersensitivity.

What psychological factors can contribute to early ejaculation?

Performance anxiety, lack of confidence, stress, and relationship problems.

What is the relationship between sexual orientation and orgasm frequency?

Heterosexual men report achieving orgasm at a higher rate than heterosexual women.

What behaviors are associated with highly orgasmic women?

Receiving more oral sex, longer sexual durations, greater relationship satisfaction, and effective communication of sexual needs.