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Male Sexual Response: Erection & Ejaculation

Male Sexual Response: Erection & Ejaculation

Sexual stimulation can take various forms, such as physical touch and visual or auditory cues. When this happens, the parasympathetic reflex in the sacral portion of the spinal cord is activated. This reflex stimulates the release of nitric oxide (NO), which then dilates the arterioles in the penis, increasing blood flow to the erectile tissues - the corpora cavernosa and corpus spongiosum.
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Penis

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The penis serves a dual role in sexual reproduction and urination. It consists of three main regions: the glans penis, the body, and the root, each with distinct functions and unique anatomical features.
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The Micturition Reflex

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Urination, or micturition involves the coordination of the bladder's detrusor muscle and two sphincters to ensure controlled bladder emptying.
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Disorders of the Male Reproductive System

Disorders of the Male Reproductive System

Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
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Psychosexual Stages of Personality: Genital

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The genital stage is the final phase of Sigmund Freud's theory of psychosexual development, beginning at puberty, around age 12. During this stage, sexual energy shifts from self-focused interests to external individuals, marking the development of mature adult sexuality. Freud saw this phase as a time of sexual reawakening, with desires directed toward others outside the family. A healthy transition into this stage, according to Freud, signifies the emergence of two key aspects of adult...

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The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
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Related Experiment Video

Updated: Jun 22, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

[Premature ejaculation].

¹Porst20354@aol.com

Der Urologe. Ausg. A

|June 27, 2009

Summary

This summary is machine-generated.

Premature ejaculation (PE), the most common male sexual dysfunction, affects 20-25% of men. Treatment involves sexual and drug therapies, including SSRIs and topical anesthetics, with Dapoxetine being a key option.

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Area of Science:

Urology
Andrology
Sexual Medicine

Context:

Premature ejaculation (PE) is the most prevalent male sexual dysfunction, affecting 20-25% of men.
Lifelong PE may stem from genetic factors influencing serotonin mechanisms.
Acquired PE can be linked to conditions like erectile dysfunction, prostatitis, and thyroid issues.

Purpose:

To review the characteristics, causes, and treatment options for premature ejaculation.
To highlight current therapeutic strategies for managing PE.

Summary:

PE is defined by a short intravaginal ejaculatory latency time (<1-2 min), lack of ejaculatory control, and associated personal and partner distress.
Treatment approaches include behavioral (sexual) therapy and pharmacological interventions.
Key medications include selective serotonin re-uptake inhibitors (SSRIs), Dapoxetine (a specifically approved PE medication), and topical anesthetics like lidocaine/prilocaine.

Impact:

Provides a comprehensive overview of PE for clinicians and researchers.
Informs treatment decisions by summarizing effective therapeutic options.
Contributes to better management of a common sexual dysfunction, improving patient quality of life.