These microscopic "tadpoles" directly involved in the conception of new life, and we know about them as much as they should.
How to look and behave sperm to fulfill its primary mission? How many "spermatozoa" is necessary for conception, and how many of them can make the average man? These and other interesting facts about sperm - in front of you.
ON, higher, faster
Standard (! And there are others) sperm as small as 5 microns (0.055 mm is) moving at high speed - up to 4 mm per minute. The slowest of speeds up to 1 mm per minute. Quitters!
200 million COMPETITORS
That's the number of sperm is usually contained in the "portion" of semen during ejaculation. Although fertilization only need one "zinger". Stiff competition, what can I say...
SPEED swim
semen ejaculation rate at 70-80 km / h.
Way to Goal
Way mini "warrior" to the egg is complicated and long, from the point of view of the sperm. The average length of the fallopian tube - about 15-17 cm, and then - each "tadpole" must be overcome in terms of human distance 6500 km! Theoretically, these "sprinters" have to go the distance in 45 minutes, but in practice - "float" as much as 3 days.
AGAINST THE STREAM
The duration of the promotion of "spermatozoa" to the target due to the fact that in general they are moving against the tide - against fluid flow due to spiraling spinning his tail. And only every 5th sperm unable to go with the flow.
Half a teaspoon
Such sperm volume "issues" normal healthy man with each ejaculation. Even this modest amount is sufficient to the army, "tadpoles" has done its job.
Sperm sperm EQUAL
"Zinger" - only a small part of the seminal fluid, which is based on the nutrients (a sort of fuel from sugar fructose). These substances liquefy semen when it penetrates the female, or sperm can not move.
LIFE 72 HOURS
How long sperm "lives" in the body of a woman after having sex? Usually 2 to 3 days, although some "talents" manage "tour" more than a week.
From what life depends? From the "friendliness" of the cervical fluid of a woman who, by the way, protects the sperm and helps it last longer remain in the body - that is "live" in an active state prior to ovulation (release of the egg from ovary). If the cervical fluid is too "sour" in composition, sperm in her short-lived.
In SPERMATOZOA "SOLID" HEAD
They need it to be implemented, it is literally screwed into the egg shell is quite firm. Moreover, a kind of "helmet" (acrosome ") on the head" Daisy "contains special substances with which it manages to dissolve the outer shell of the egg and penetrate.
One testicle ENOUGH?
It's true. Even one egg man produces sperm as much as enough to conceive a child. And not one.
WORKING PROCESS 24/7/365
It is in this mode produced sperm in men. Even a man of advanced age "zinger" continue to be produced, except that their motor skills deteriorate. A woman receives a "dowry" a limited number of eggs, which are formed 40 days before the birth.
Dead sperm is able to create a living child
Not the traditional way, of course, and in vitro fertilization. For fertilization need not all "zinger" - head and tail - but only the DNA inside it.
MODE "coolness"
Comfortable temperature for life sperm - 30-31 degrees, so the testicles - the hostel "spermatozoa" - led out.
If a man is often crosses his legs, is melting, which raise high balls to the body, the sperm have started "global warming" and "Armageddon."
