Answer:
Reproduction system song
You’ve heard of the birds, and also the bees Compared to how they reproduce, our way’s a breeze So here’s a little introduction, some mighty good instruction About human reproduction. We’ll start with the female—in ovulation The ovary releases an egg, awaitin’ fertilization In the Fallopian tube, a sperm can pierce the egg’s coat The two nuclei fuse, and you’ve got a zygote The zygote divides many times, forms a hollow ball (the blastocyst) Which implants itself in the uterine wall ‘Til it’s eight weeks old, it’s an embryo Grows through the fetal stage, and then it’s got to go Through the cervix, vagina, then out into the air And if your mother’s lucky, you’re not too hard to bear! Now let’s back up a minute, and bring in the male That provided that sperm, with a flagellum like a tail In the seminiferous tubules of the testes millions of sperm cells are formed They mature in the epididymus, but they can’t get too warm (the scrotum keeps the testes ~2oC below body temperature) In ejaculation the epididymus contracts, Sperm move through the vas deferens and urethra, then out—that’s a fact But the volume from the testes isn’t that great Semen’s mostly from the seminal vesicles (~60%) and the prostate (with a small contribution from the bulbourethral [also called Cowper’s] gland) ‘Course the urethra’s in the penis—used for semen injection In intercourse it’s filled with blood, it’s called an erection Releasing semen in the vagina is just the beginning For sperm to reach the egg, sperm has got to get swimming! Through the cervix and the uterus to the Fallopian tube Where the egg is fertilized—that’s how Mom and Dad made you. Song – Reproductive system.
Sana Makatulong :)
#Carry on Learning
