30 Questions
Which organ is the main male sex organ responsible for producing semen and sperm?
Testicles
What is the function of the urethra in the male reproductive system?
To excrete urine
What happens to the penis when the male becomes sexually aroused?
It becomes erect
What is the function of the scrotum in the male reproductive system?
To hold and protect the testicles
What causes the wrinkled appearance of the scrotum?
Contraction of the dartos muscle
Which arteries supply blood to the penis?
Pudendal arteries
What is the function of the glans in the male reproductive system?
To protect the penis
What is the role of the testicles in the male reproductive system?
To produce semen
What is the function of the dartos muscle in the male reproductive system?
To give the scrotum a wrinkled appearance
What is the role of the cremaster muscle in the male reproductive system?
To bring the scrotum closer to the body
During which week do the testes descend into the scrotal sac?
28th week
What causes the elongation and differentiation of the phallus into a penis?
Androgens
What structures form the spermatic cord?
All of the above
What causes the fusion of the urogenital folds surrounding the urethral groove?
Androgens
What determines the genetic sex of an individual?
Presence or absence of a Y chromosome
What causes the male secondary sexual characteristics to be manifested during puberty?
Androgens
What structures form from lateral outgrowths of the caudal end of each mesonephric duct?
Seminal vesicles
What structure arises from an endodermal outgrowth of the urogenital sinus?
Prostate gland
What structures develop from outgrowths in the membrane-like portion of the urethra?
Bulbourethral glands
What is the purpose of the gubernaculum in the descent of the testes?
To pull and translocate the testis down into the developing scrotum
Which structure connects the scrotum to the abdomen or pelvic cavity?
Spermatic cord
Where are the Leydig cells located?
Testicles
What is the function of the epididymis?
To concentrate sperm
What is the vas deferens also known as?
Sperm duct
Which gland is responsible for producing seminal fluid and helping regulate urine flow?
Prostate gland
What do the three accessory glands provide to the duct system?
Fluids that lubricate
What is the process called when the male reproductive organs grow, mature, and are established?
Sexual development
What determines the genetic sex of the zygote at fertilization?
X or Y chromosome in the sperm cell
Which structures are masculinized by secretions of the testes?
Genital tubercle
At what stage of development do the external genitalia become distinctly male or female?
10th-12th week post conception
Test your knowledge about the male reproductive system and its key organs with this informative quiz. Explore the functions of the penis and testicles, as well as the process of sperm production and fertilization. Gain a deeper understanding of human reproduction through this engaging quiz.
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