Lesson 1, Topic 1
In Progress

Physiology of the Male Reproductive System

April 11, 2024

Learning Objective: Examine the physiology of the male reproductive system.
Several hormones are involved in the male reproductive system, including testosterone, follicle-stimulating, and luteinizing hormones.

FIGURE 27.15  Male reproductive system with inset of sperm production. From Shiland B: Medical terminology & anatomy for ICD-10 coding, ed 2, St. Louis, 2016, Mosby.

Testosterone
Learning Objective: Describe the role of testosterone in the male reproductive system.
At puberty, the interstitial cells in the testicles begin to produce testosterone. Testosterone is responsible for maintaining reproductive structures and for the development of sperm cells. Testosterone also helps with the development of secondary sex characteristics, which include a deep voice, broad shoulders, narrow hips, and additional body hair.


Follicle-Stimulating and Luteinizing Hormones
Learning Objective: Describe the role of follicle-stimulating and luteinizing hormones in the male reproductive system.
In addition to testosterone, follicle-stimulating hormone (FSH), secreted by the pituitary gland, promotes the formation of spermatozoa. The pituitary gland also produces luteinizing hormone (LH), which stimulates the interstitial cells to produce testosterone. Under the influence of these hormones, sperm cells develop and move into the epididymis to mature.