Questions and Answers
Which cells produce testosterone?
Leydig cells
Sertoli cells are directly involved in what process?
spermatogenesis
Sertoli cells are also known as?
sustentacular cells and nurse cells
How many seminiferous tubules are found in each testis of an average man?
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Which of the following are produced by the Leydig cells?
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What do Sertoli cells produce?
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What does the male genital duct system contain?
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What is the surface modification seen on the cells of the epididymis?
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Microvilli are the finger-like projections seen on the surface of some cells. What do they form?
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What is cilia?
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Keratinization is seen in which part of the body?
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What type of hormone is testosterone?
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What are norepinephrine and epinephrine?
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Which hormones are proteins?
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Examples of hormones that are peptide chains include?
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What are the corpora cavernosa and corpus spongiosum?
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What gland in the male is homologous to the greater vestibular gland in females?
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Skene's glands are also called?
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The bulbourethral glands are homologous to which glands in females?
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Where are Brunner's glands found?
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What is the most commonly seen type of epithelium in the prostate?
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What type of epithelium lines the epididymis?
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Study Notes
Male Reproductive System Key Facts
- Leydig (interstitial) cells are responsible for producing testosterone.
- Sertoli cells are crucial for spermatogenesis, aiding in the development of sperm.
- Sertoli cells are also known as sustentacular cells or nurse cells.
- Each adult male testis contains approximately 400 to 600 seminiferous tubules, where sperm is produced.
- Leydig cells produce testosterone, essential for male reproductive functions.
- Sertoli cells secrete inhibin and androgen-binding protein, regulating sperm production.
- The male genital duct system consists of the rete testes, tubuli recti, ductuli efferentes, ductus epididymidis, and ductus deferens.
- Male accessory glands include the bulbourethral (Cowper's) glands, seminal vesicles, and prostate, contributing to seminal fluid.
- The epididymis features stereocilia, which are elongated microvilli that aid in sperm maturation and storage.
- Microvilli, known as the brush border or striated border, enhance surface area for absorption in various tissues.
- Cilia, hair-like projections on some epithelial cells, are formed from microtubules and facilitate movement.
- Keratinization is observed in the epidermis, where keratin-filled cells form a protective layer.
- Testosterone is classified as a steroid hormone, affecting various physiological processes.
- Catecholamines include norepinephrine and epinephrine, which are involved in the body's response to stress.
- Protein hormones, such as insulin and prolactin, play vital roles in metabolism and lactation, respectively.
- Peptide hormones include antidiuretic hormone and oxytocin, involved in fluid balance and childbirth.
- Erectile tissues consist of corpora cavernosa and corpus spongiosum, facilitating penile erection.
- Cowper's (bulbourethral) glands in males are homologous to the greater vestibular glands in females, providing lubrication.
- Skene's glands, also known as lesser vestibular glands, are found in females and have similar functions to male glands.
- Bartholin's glands in females are homologous to the bulbourethral glands in males, contributing to lubrication during intercourse.
- Brunner's glands, which secrete mucus to aid digestion, are found in the duodenum.
- The prostate is primarily lined with simple columnar epithelium, important for its secretory functions.
- The epididymis is lined with pseudostratified epithelium, essential for sperm maturation and storage.
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Description
This quiz covers essential facts about the male reproductive system, highlighting the roles of Leydig and Sertoli cells in sperm production and hormone regulation. Learn about the structure and function of the testes, genital ducts, and accessory glands, along with their significance in male reproductive health.
