Male Reproductive System - Physiology

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Identify the hormone primarily responsible for male secondary sexual characteristics.
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Testosterone is the hormone responsible for male secondary sexual characteristics.
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Where is testosterone produced in the male body?
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Testosterone is produced primarily in the testes.
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What is spermatogenesis?
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Spermatogenesis is the process of sperm cell development and maturation.
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What is the role of the scrotum?
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The scrotum protects the testes and maintains an optimal temperature for sperm production.
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Explain the function of the seminal vesicles.
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The seminal vesicles produce a fluid that provides energy for sperm and assists in motility.
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What does the prostate gland contribute to semen?
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The prostate gland contributes a fluid that helps to nourish and protect sperm.
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What are the roles of FSH and LH in the male reproductive system?
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FSH (Follicle Stimulating Hormone) stimulates sperm production, and LH (Luteinizing Hormone) stimulates testosterone production.
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Explain the HPG axis in males.
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The hypothalamic-pituitary-gonadal (HPG) axis is the hormone regulation system that controls the production of testosterone and spermatogenesis.
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What is the role of inhibin in males?
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Inhibin is a hormone that regulates FSH levels by providing negative feedback to the pituitary gland.
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What is the epididymis?
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The epididymis is a tube where sperm mature and are stored.
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What is the anatomy of sperm?
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Sperm consists of a head, which contains the genetic material, a midpiece with mitochondria, and a flagellum for motility.
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How is prostate health typically monitored?
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Prostate health is monitored through PSA (Prostate-Specific Antigen) tests and digital rectal exams.
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What enzyme is involved in the conversion of testosterone to dihydrotestosterone?
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5-alpha reductase converts testosterone to dihydrotestosterone (DHT).
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How does exercise affect male fertility?
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Moderate exercise can improve fertility by boosting testosterone levels and enhancing sperm quality, while excessive exercise can have the opposite effect.
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What are common signs of androgen deficiency?
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Common signs include reduced libido, fatigue, depression, and decreased muscle mass.
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