Which of the following is a sympathetic effect on the reproductive system?

• A. Ejaculation in males
• B. Increased blood flow to the reproductive organs
• C. Stimulation of uterine contractions
• D. Inhibition of vaginal lubrication

Answer: (A)

Verified step by step guidance

1. Understand the role of the sympathetic nervous system: The sympathetic nervous system is part of the autonomic nervous system responsible for the 'fight or flight' response, which generally prepares the body for action.
2. Identify sympathetic effects on the reproductive system: Sympathetic effects typically involve processes that are part of the body's acute stress response, such as ejaculation in males and stimulation of uterine contractions.
3. Consider the physiological processes involved: Ejaculation in males is a process that involves the sympathetic nervous system, as it is part of the body's acute response to stimuli.
4. Evaluate the options: Increased blood flow to the reproductive organs and inhibition of vaginal lubrication are not typically associated with sympathetic activation. Increased blood flow is more often a parasympathetic effect, while inhibition of lubrication does not align with the typical sympathetic response.
5. Conclude with the correct sympathetic effect: Based on the understanding of sympathetic responses, ejaculation in males is the correct answer as it is a direct result of sympathetic nervous system activation.