Male Reproductive System - Physiology

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Identify the hormone primarily responsible for male secondary sexual characteristics.

Testosterone is the hormone responsible for male secondary sexual characteristics.

Where is testosterone produced in the male body?

Testosterone is produced primarily in the testes.

What is spermatogenesis?

Spermatogenesis is the process of sperm cell development and maturation.

What is the role of the scrotum?

The scrotum protects the testes and maintains an optimal temperature for sperm production.

Explain the function of the seminal vesicles.

The seminal vesicles produce a fluid that provides energy for sperm and assists in motility.

What does the prostate gland contribute to semen?

The prostate gland contributes a fluid that helps to nourish and protect sperm.

What are the roles of FSH and LH in the male reproductive system?

FSH (Follicle Stimulating Hormone) stimulates sperm production, and LH (Luteinizing Hormone) stimulates testosterone production.

Explain the HPG axis in males.

The hypothalamic-pituitary-gonadal (HPG) axis is the hormone regulation system that controls the production of testosterone and spermatogenesis.

What is the role of inhibin in males?

Inhibin is a hormone that regulates FSH levels by providing negative feedback to the pituitary gland.

What is the epididymis?

The epididymis is a tube where sperm mature and are stored.

What is the anatomy of sperm?

Sperm consists of a head, which contains the genetic material, a midpiece with mitochondria, and a flagellum for motility.

How is prostate health typically monitored?

Prostate health is monitored through PSA (Prostate-Specific Antigen) tests and digital rectal exams.

What enzyme is involved in the conversion of testosterone to dihydrotestosterone?

5-alpha reductase converts testosterone to dihydrotestosterone (DHT).

How does exercise affect male fertility?

Moderate exercise can improve fertility by boosting testosterone levels and enhancing sperm quality, while excessive exercise can have the opposite effect.

What are common signs of androgen deficiency?

Common signs include reduced libido, fatigue, depression, and decreased muscle mass.