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Questions and Answers
What is the primary role of the male reproductive system in sexual reproduction?
What is the primary role of the male reproductive system in sexual reproduction?
- To regulate hormone levels in females
- To store urine before excretion
- To produce and deliver sperm cells (correct)
- To produce eggs for fertilization
Which structure in the male reproductive system is responsible for sperm production?
Which structure in the male reproductive system is responsible for sperm production?
- Scrotum
- Epididymis
- Urethra
- Seminiferous tubules (correct)
What is the approximate length of the seminiferous tubules if stretched out?
What is the approximate length of the seminiferous tubules if stretched out?
- 250 meters
- 300 meters
- 400 meters
- 500 meters (correct)
Why do the testes descend into the scrotum prior to birth?
Why do the testes descend into the scrotum prior to birth?
How much cooler is the temperature in the scrotum compared to the body's internal temperature?
How much cooler is the temperature in the scrotum compared to the body's internal temperature?
Flashcards
Diploid Zygote
Diploid Zygote
A cell formed by the union of two haploid gametes, containing two sets of chromosomes.
Testes
Testes
Male reproductive organs that produce sperm and hormones; typically two, located in the scrotum.
Seminiferous Tubules
Seminiferous Tubules
Tightly coiled structures within the testes where sperm production occurs through meiosis.
Scrotum
Scrotum
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Sperm Production Temperature
Sperm Production Temperature
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Study Notes
Male Reproductive Structures
- Sexual reproduction involves the formation of a diploid zygote from two haploid gametes
- Male role: Produce sperm and deliver to female system to fertilize egg
- Testes (singular, testis): Gamete producing organs
- Size: Approx. 4 cm long, 2.5 cm in diameter
- Compartments: Approx. 250
- Seminiferous tubules: Tightly coiled compartments within testes
- Length: Approx. 80 cm per tubule - Approx 500m combined
- Sperm development: Occurs through meiosis in specialized lining of tubules
- Scrotum: External sac containing the testes
- Temperature: 2°C to 3°C cooler than body temperature (37°C) to allow sperm development. This cooler temperature is necessary for normal sperm development.
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