Week 4: human sexuality

Question 1

List the four phases of human sexual response cycle

Answer 1

1. excitement
2. plateau
3. Orgasm
4. resolution

Question 2

Describe the physiologic changes in the male during the sexual response cycle

Answer 2

1. Excitement
   - erection in response to mental imagery, visual or tactile stimuli
2. plateau
   - testes elevated, turgor in penis increases
   - penile circumference increases
   - scrotal skin thickens
   - increases in bp, heart rate, flushing
3. Orgasm
   - penile and urethral contractions
   - internal sphincter of bladder closes
   - prostate gland contracts, seminal vesicles contract, and rectal sphincter contracts
4. Resolution
   - refractory period

Question 3

Describe the physiologic changes in the female during the sexual response cycle

Answer 3

1. excitement
   - pyschogenic, tactile stimuli
   - cliteris enlarges, labia swells, vaginal lubrication appears
   - uterus elevates, creates more space in vagina
2. plateau
   - more of whats happening during excitement
   - color change in labia
3. Orgasm
   - contractions in uterus and vagina
4. resolution
   - returns to unexcited state
   - believed to not experience refractory period

Question 4

Sexual dysfunction in men and women

Answer 4

• in men focuses on erectile dysfunction
• in females, focuses on deficits in desire and arousal. Can be categorized as sexual desire disorder, sexual arousal disorder, orgasmic disorders, sexual pain disorder