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Questions and Answers
What is the primary function of the testes?
What is the primary function of the testes?
Which structure connects the rete testis with the epididymis?
Which structure connects the rete testis with the epididymis?
How many seminal vesicles are present in the male reproductive system?
How many seminal vesicles are present in the male reproductive system?
What is the primary function of the prostate gland?
What is the primary function of the prostate gland?
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Which part of the male urethra is the longest?
Which part of the male urethra is the longest?
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What structure surrounds each testis?
What structure surrounds each testis?
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What is the main role of the epididymis?
What is the main role of the epididymis?
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What is the shape of the prostate gland?
What is the shape of the prostate gland?
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What type of cells are Sertoli cells associated with?
What type of cells are Sertoli cells associated with?
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Which part of the male urethra is considered the narrowest?
Which part of the male urethra is considered the narrowest?
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Study Notes
Male Reproductive System
-
Testis (Testes):
- Primary male sex organ
- Produces sperm
- Secretes testosterone
- Two testes
- Oval shape
- Suspended in scrotum, outside abdominal cavity, supported by spermatic cord
- Tunica vaginalis: outer membrane covering each testis
- Tunica albuginea: tough, white fibrous capsule surrounding each testis; forms septa dividing it into lobules
- Seminiferous tubules (1-2 per lobule): contain germinal cells (produce sperm) and Sertoli cells (nourish sperm)
- Testicular stroma: lies between tubules, contains cells secreting testosterone
- Rete testis: network of small tubes at end of seminiferous tubules
- Vasa efferentia: small tubules connecting rete testis to epididymis
Epididymis
- Single, convoluted duct (6 meters long)
- Stores and matures sperm
- Located along posterior aspect of testis
- Divided into head, body, and tail
Vas Deferens
- Continuous with epididymis' tail
- Enters abdomen, travels to pelvis, runs on the back of bladder
- Joins duct of seminal vesicle to form ejaculatory duct, which opens into prostatic urethra
Accessory Glands
-
Seminal Vesicles (2):
- Positioned at base of urinary bladder
- Secrete fluid for sperm nutrition.
- Unite with vas deferens (forms ejaculatory duct)
-
Prostate (1):
- Cone-shaped
- Surrounds prostatic urethra, below neck of bladder
- Secretes seminal fluid to nourish sperm
-
Bulbourethral Glands (Cowper's Glands) (2):
- Located in perineum
- Open into penile urethra
- Secrete fluid for sperm nutrition
Ducts
-
Ejaculatory Ducts:
- Formed by union of vas deferens and seminal vesicle duct
- Penetrates prostate, opens into prostatic urethra
-
Male Urethra (20 cm):
- Three parts: prostatic, membranous, penile (spongy)
- Prostatic: widest part
- Membranous: narrowest and shortest
- Penile (spongy): longest part
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Description
This quiz explores the anatomy and functions of the male reproductive system, including key structures like the testes, epididymis, and vas deferens. You'll learn about the role of each component in sperm production, maturation, and transport. Test your knowledge and understanding of male reproductive health!
