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113 terms

Quiz 17

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asexual division (mitosis)
When one cell divides and gives rise to two new cells its called _____.
23, 46
Humans normally have _____ chromosomes from each parent. _________ total.
zygotic division, reduction division
Meiosis is also called _____ or _____.
puberty
In human males meiosis is completed after _____.
accessory sex organs
The vagina and penis are examples of _____ organs.
vas deferens
The _____ is normally cut in a male during sterilization.
spermatic fascia
_____ covers the spermatic cord.
cremaster muscle, thermoregulation
The muscle found in the spermatic cord that looks like corned beef is the _____. Functionally it is important for _____.
tunica vaginalis
The remnant of peritoneum forming the innermost layer of the fascial sac is the _____.
cremaster, dartos
The _____ muscle and the _____ muscle contract if the testicle is too cold. They pull the testicle against the body to warm it up.
flagellum
A spermatozoon must develop a _____ in order to swim.
testicle
The tunica albuginea is the outer covering of the _____.
rectum
In human males the prostate gland can be palpated from the _____.
vagina
Semen is normally deposited in the _____.
true - actually it is fructose sugar
True or False? Seminal fluids contain sugar.
false - but dogs, raccoons, and whales do
True or False? Humans have a bone in the penis.
cervix
In a human female the _____ can be palpated from the rectum.
6 weeks
From the time of fertilization to _____ there is no anatomical difference between males and females.
testicle
The ovary in a female is homologous to the _____ in the male.
zygote, death
asexual begins with ________ and ends with _________.
genetically identical to the original cell, same number of chromosomes
The two new cells from asexual are what to the original cell and how many chromosomes?
stays the same
In mitosis the number of chromosomes _____________.
gametes
sexual (meiosis) results in the formation of ___________.
half the normal number
in sexual (meiosis) the number of chromosomes is reduced to what?
fertilization
sexual (meiosis) two cells combine to give rise to one new cell, this is called _____________.
gamete
the gametes combine into one __________.
sperm
male gamete is
ovary
female gamete is
xxy instead of xx
down syndrome for females
xyy instead of xy
down syndrome for males
x instead of xx
turners syndrome
to have two anatomical forms
humans being sexually dimorphic means
testicle
primary sex organ of male?
ovaries
what is the primary sex organ of the female?
mixed
ovaries and testicles are ___________ glands that produce gametes, (spermatoza and ova)
500,000
____________ ova per woman.
before birth
for the ovary, meiosis is thought to be complete when
birth, stops, after puberty
for the testicle, meiosis is thought to begin before __________ and then ________. and is complete ___________.
exocrine products
the gametes from the testicle are ________.
testosterone
testicle produces what hormones __________
estrogen and progesterone
ovary produces what hormones ___________
hormones
adrenal glands produce small amounts of both __________
accessory organs
these help transport spermatozoa to the ovum and upon fertilization help maintain the fetus.
male ducts, cervix, uterus, and oviducts
along with the penis and vagina, what are the other acessory organs?
mammary glands, musculature, skeletal diffferences, adipose tissue location and cycles, agreession and personality, sex drive, maintaining the differences
other than facial and body hair, voice change, what other changes come about at puberty?
pelvic cavity
urinary bladder and urethra of males and females are located in the _____________.
caudally
the male urethra passes ______________ into the penis.
urinary bladder, the bulb of the penis
prostate is an enlargement between the __________ and the _________________.
vas deferens, seminal duct
ejaculatory duct begins where the _______________ and _____________ meet.
pubic arch
the crus anchors the penis to the ___________.
erectile cylinders
the shaft houses the urethra and __________________.
20
the duct of the epididymis is _________ feet long.
fascial sac
what covers the testicle?
glans penis
the ___________ is the end of the corpus spongiosum
abdominal aponeuroses
fascial sac is made up of ______________.
body cavity, inguinal ligament
the testicle originates in the ______________ and descends to the _________________.
spermatic fascia
in the adult the peritoneum is no longer found in the _________
spermatic fascia, cremaster muscle
in the adult the internal abdominal oblique muscle fibers are in the ___________ or the _____________.
tunica vagalinis
in the adult the _____________ is the remaining peritoneum forming the innermost layer of the fascial sac.
internal inguinal ring, umbilicus
the _______________ is the potential problem for inguinal hernias. another place they occur is the ____________.
external iliac
femoral hernias can occur where the ______________ passes deep to the inguinal ligament.
3 to 4
in order for normal spermatozoa development the testicle must be ____________ degrees Celcius cooler than body temperature.
cremaster muscle and dartos muscle
If the testicle is too cold what two muscles contract? this brings the testicles closer to the body wall to warm it up.
tunica albuginea
____________ is the outer covering of the testicle.
seminiferous tubles, spermatoza
inside testicle are _____________________ (microscopic) these produce _____________.
rete testes
spermatoza move from seminiferous tubules to _________
dendritic system
______________ drains into the vas efferens
epipdidymis, posterior
spematozoa spend 20 days in the duct of the ____________ on the ________ side of the testicle.
23
head of the spermatozoon has how many chromosomes?
mitochondria
midpiece of spermatozoon has ___________
spermatozoa to vas deferens
smooth muscles in the walls of epididymis contract during ejaculations this is to help pump _______________
phagocytized, endothelial cells of duct
if no ejaculation occurs within several months, the spermatozoa are ________________ by ____________________.
uterine contractions
seminiferous fluids contain stimulants the cause ___________.
immune response against spermatozoa by female
seminiferous fluids contain chemicals to reduce
motility of spermatozoa
seminiferous fluids contain chemicals to increase
clot semen and later liquefy it
seminiferous fluids contain enzymes that
ejaculatory duct
the union of the seminal duct and the vas deferens forms the ___________.
prostate gland
the __________ is a gland with 30 to 40 glands and can be palpated from the rectum.
bulb of penis
semen move to the __________.
bulbourethral glands
________________secretions are mostly mucus, and lubricate the urethra to neutralize the acids of the urine.
corpus spongiosum
____________ makes up the glans
corpora cavernosa
__________________ continuous with the crura and end up on the posterior side of the shaft.
crura
_________ anchor penis to pubic arach through the ischiocavernosus muscle.
corpora
the _____________ are highly vascular when filled with blood they cause the erection.
erect
anatomical position of the penis is _____________.
gubernaculum
the _______________ is the origin for the round ligament of the ovary and the round ligament of the uterus
round ligament
______________anchors the ovary to the uterus
infundibulum
the __________ covers the ovary
infundibulum
the ________________ has ciliated epithelial cells that sweep the ovum to the oviduct.
corona
the _________ is digested y the first spermatozoa that arrive before fertilization can occur
polar body
the ____________is one of the cells produced during meiosis its is non functional and cannot be fertilized.
5
it takes about _________ days for the oviducts cilia to sweep the ovum or zygote to the body of the uterus.
distal third of oviduct
fertilization is normally in the _______________
rectum
the cervix can be palpated from the __________
vagina
semen is deposited in the _________
external, internal
in humans the vestibule is __________ in cats it is _____________. it is a common urogenital sinus
secrete mucus for lubrication during intercourse
there are greater vestibular glands (bartholins galnds ) along the posterior lateral margin of the vestibule - these do what?
bulbourethral glands
the greater vestibular glands (bratholins glands) have a common origin with the __________ of the male.
anatomical difference between males and females
from fertization to six weeks there is no ____________
gonad
there are two pairs of ducts, and a pair of gonads and gebernaculum with each what
little governor
gubernaculum means
it becomes part of the renal system of the adult male
what happens to the mullerian duct in the male?
round ligament of the ovary and round ligament of the uterus
in the female the gubernaculum becomes the
the two round ligaments
the broad ligament of the uterus is peritoneum and ______________ is not
it became part of the renal system of the adult female
what happend to the wolffian duct in the female?
clitoris
the homologus structure to the penis is the
testicle
homologus structure to the ovary is the
male urinary tract
homologus structure to the female acessory organ is the
part of the female urinary tract
homologus structure to the male accessory organs is the
greater vestibular gland
homologus structure to the bulbourethral gland is the
labium jaor
homologus structure to the crus of the penis is the
labia minora
homologus structure to the bulb of the penis is the
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