three Accessory gland of human mare reproductive system
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Answer:
accessory glands.
Semen
Okay, class. Today's assignment is simple - all you have to do is count! Count how many sperm are in one tiny little mL of semen. Sounds simple, right? While you do that, let me first go over what exactly semen is.
I know what you're thinking - 'Aren't sperm and semen the same thing?' Well, yes and no. You see, sperm is actually part of the semen and only accounts for about 5% of the total fluid contents of semen. Sperm is produced by the testes and transported up to the male's ductus deferens, where it is stored in a region called the ampulla. It doesn't become part of semen until it is combined with fluids from the male's accessory glands.
So, semen is actually a combination of sperm and fluids secreted from the accessory gland structures found in males. This is what leaves the male's penis during the process known as ejaculation.
Wait, wait. I know your next question - 'What are accessory glands?' Right? Well, accessory glands are specialized structures found in males that produce fluids essential for the motility, nourishment and protection of sperm. These are the topics of today's lesson.
Males have three of these glands, and each one contributes to the production of semen. They are:
the seminal vesicles
the prostate gland
the bulbourethral glands
Prostrate gland, seminal vesicles and the bulbourethral gland are the three accessory gland of human male reproductive system.
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