Studied by 69 peopleTags & Description
body, sex
Mitosis produces 2 identical ______ cells, while meiosis produces 4 unique ______ cells.
nucleus, 46
Every cell has a ______ which contains DNA with __ chromosomes.
blood
The fimbriae become filled with ______ as ovulation nears.
egg
The ______ is the size of a grain of sand.
hair
The fallopian tubes are about 2 times the thickness of a human ______.
hormones
______ control both men and women's cycles.
valve
A ______ stops urination during sexual arousal.
golf ball
The prostate is about the size of a what?
seminiferous tubules
The ______ ______ are about 700 feet long.
cooler
Testicles work better in ______ temperatures.
2
The average male produces around __ trillion sperm in their lifetime.
epididymis
If the ______ were stretched out, it would be 15-20 feet.
flagellum, head
A sperm's tail is known as a ______ while the ______ contains the DNA.
20
__% of male sperm is defective.
sensitive
Erogenous zones are the body's most ______ areas.
vagina, 4
After sperm enters the ______, nearly 1/__ of it will die immediately.
48
Sperm remains viable for 28-__ hours.
2
Only 1/__ of sperm will go up the right tube.
50
Of all the sperm, only __ will reach the egg.
tail, DNA
Once inside the egg, the sperm loses its ______ and releases tightly packed molecules filled with ______.
24
The cell begins to divide within __ hours.
zygote, blastocyst
A fertilized egg becomes a ______ , which after 5 days turns into a ______.
10
Within __ days, a blastocyst implants itself into the uterus.
10
After 2 weeks in the uterus the creation is 1/__ of an inch long.
4
After __ weeks, arm buds and the beginning of eyes are formed.
amniotic
The embryo floats inside of the ______ sac.
fetus
After 10 weeks the embryo becomes a ______.
umbilical
The ______ cord is the fetus' link to life.
life
The reproductive system is a unique system that requires one human to interact with another to accomplish its goal - to create ______.
false
True or false; reproductive systems are essential for survival.
fertilization, birth
Role is to provide the eggs for _, nourish the egg, and allow them to grow and develop until _.
1, 2, 520
Girls are born with __ million eggs in each of their __ ovaries. Despite this, they only need __ in their lifetime.
sperm
Men never stop producing ______.
pelvic
Ovaries are located in the ______ cavity.
estrogen
Ovaries produce eggs and ______, the female sex hormone.
fallopian
______ tubes connect the ovaries to the uterus.
fimbriae, catch
______ are finger like projections on the end of the fallopian tubes that "______" the eggs.
womb, bladder, 2, 12
The uterus is also known as the ______. It is located just over the __________ and the baby develops here, stretching it from __" to __".
thick, body
The uterus has extremely ______ walls that and is called the ______.
endometrium, tissue
Inner tissues of the uterus are known as the ______ . It is made out of blood and ______.
placenta
During pregnancy, the endometrium becomes part of the ______.
cervix, uterus
The ______ is located in the lower part of the uterus. It directs sperm from the vagina through to the ______.
10, birth canal
The cervix dilates __ cm at the end of pregnancy to allow a baby to pass through the ______ ______.
release
Secrete means to ______.
mucus
The cervix secretes ______ to form a plug during pregnancy.
ovaries, egg
The fallopian tubes lead from the ______ to the uterus. Sperm usually meets the ______ here.
4
Each fallopian tube is around __ inches long.
copulation
Another word for sex is ______.
cervix, birth canal
The vagina is a tube that connects to the ______. It is used for copulation and as a _______.
yes
Do bacteria always try to enter your body?
vulva
The vagina is connected to a female's external genitalia known as the ______.
clitoris
The ______ is a small mass of tissues that enlarges during sexual arousal.
lubricant
The greater vestibular glands produce a ______.
majora, minora
The labia ______ is on the outside, while the labia ______ is on the inside.
minora, fallopian, acidic, white
The physical protection of the vagina is done by the labia majora and ______, downward flow is created by cilia in the ______ tubes, the vagina is ______, and finally the immune system uses _ blood cells.
fatty
Breasts are made mostly of ______ tissue.
birth, ducts, nipple
Mammary glands produce milk after ______. The milk is then drained into the mammary ______ located in the ______.
nutrients, antibodies
Breast milk is a source of ______ as well as immunization by giving the baby ______.
15
It takes 10-__ minutes to empty one breast.
True
True or false; every cell has the same DNA.
pubic
The ______ bone is the front of the pelvis.
reproduction, hormones, scrotum
Testes are male organs for ______. They produce and store sperm cells along with sex ______ associated with reproduction. They are stored in the ______.
penis, ejaculated
The vas deferens are a tube that connect each testicle to the ______. During intercourse, mature sperm cells pass through the vas deferens and are ______ into the urethra.
acid, 2
The prostate gland secretes (releases) a fluid that help the sperm move and neutralizes the vagina's ______. __ other glands help, but they aren't as important.
seminiferous, epididymis
Testes are made out of ______ tubules. The ______, located just above the testes, stores the sperm.
pouch
The scrotum is a ______ of skin that stores the testes.
blood, urethra
______ fills the penis during sexual intercourse causing it to become erect. The ______ carries sperm out of the penis.
400, 1
There are __ million sperm in each ejaculation, equivalent to about __ teaspoon(s).
erectile
The penis has ______ tissue.
labia, flow, acid
The man's body perfectly counters the girl's defenses. The penis pushes past the ______, the sperm's tails swim against downward ______, the semen neutralizes the ______, and the sheer amount of sperm overwhelm the girl's immune system.
eggs
Oogenesis is the production of ______.
sperm
Spermatogenesis is the production of ______.
uterine, uterus, 28
The menstrual cycle includes the ovarian and ______ cycle. This prepares an egg and ______ for a potential pregnancy. The cycles restart after _ days.
5, lining, ovulation, luteum
Day 1-_, menstruation occurs, and the ____ of the uterus is shred, day 6-13, the follicular and proliferative phase begins, day 14, ______ occurs, and around this time is the only time it is possible for a girl to get pregnant, day 15-28, the luteal and secretory phase occurs. The endometrium is made stronger, and corpus ______ is released in case of a pregnancy.
Menopause
______ is the natural cessation (end, you should know what that means) of the cycle. No more kids and bleding.
follicle, largest, 2
______ surrounds the development of an egg. MATURED eggs are about the size of a grain of sand, the ______ cell in the human body. Girls lose 1-__ ounces of blood during their menstrual cycle.
luteum
Corpus ______ makes the endometrium softer and more able to detect and catch sperm.
million
Men produce several ______ sperm a day.
Y, X
Males are X__, while girls are X__.
gonia, cytes, zoa
Spermato______ > Spermato______ > Spermato______ which develop into sperm cells.
40
Pregnancies last __ weeks or 9 months.
umbilical
Things that are a part of the baby are the body, the placenta, the ______ cord, and the amniotic fluid, while the mother only owns the endometrium.
6
The heartbeat starts at __ weeks.
amniotic
When the placenta cracks, ______ fluid will flow out and this has come to be known as "water breaking."
feet
______ first birth leads to a cesarian section which leads to cutting out the placenta and baby and then stitching the mom back up.
pain
Epidural blocks the ______ of childbirth.
2, 1, separated
Fraternal twins are __ sperm and egg(s), while identical twins are __ sperm and egg(s). Conjoined is the same as identical, only they never ______.
Ovary
(vertebrates) one of usually two organs that produce ova and secrete estrogen and progesterone
Oviduct
tube that conveys egg cells away from the ovary toward the uterus; the usual site of fertilization
Fallopian Tubes
transports eggs from ovaries to uterus
Uterus
The thick, muscular, pear-shaped organ in the female mammal in which the embryo develops.
Cervix
opening to the uterus
Vagina
a canal that leads from the uterus to the outside of the body
Vulva
external parts of the female genitalia
Testes
The male gonads, which produce sperm and secrete male sex hormones.
Vas deferens
A coiled tube that carries the sperm out of the testes.
Prostate Gland
A gland within the male reproductive system that is located just below the bladder.
Penis
the male organ that transfers sperm to a female and that carries urine out of the body.
Scrotum
the external pouch that contains the testes
Menstrual Cycle
The monthly cycle (around 28 days) of discharge of blood and tissues from the uterus.
Note
Flashcard