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101 Cards in this Set

  • Front
  • Back
Scrotum
contains the testes and is divided into two internal compartments by an incomplete connective tissue septum;
Menstrual cycle is divided into 2 cycles- what are they?
ovarian cycle and the endomerial(uterine)cycle
The location of the testes and epididymides in the scrotum provides
a temperature that is suitable for normal sperm development.
Ovarian cycle
Is divided into follicular phase, the ovulatory phase and the luteal phase
Optimum temperature for sperm production is 3 degrees cooler than body temperature. which location would the testes produce the most sperm?
scrotal sac
Perineum
the area between the thighs bounded by the symphysis pubis anteriorly, the coccyx posteriorly, and the ischial tuberosities laterally
Follicular phase
estrogen dominate when the follicle matures
Urogenital triangle
anterior triangle within the perineum;
contains the base of the penis and the scrotum
Sperm are produced in the
seminiferous tubules
Anal triangle
posterior triangle within the perineum;
contains the anal opening
ovulatory phase
follicle ruptures from the ovary on approximately the 14th day before onset of the next cycle
Testes
small ovoid organs;
primary reproductive organ in the male;
both exocrine and endocrine glands
Which hormone is produced by the testis
testosterone
Tunica albuginea
the outer part of the testis; thick, white capsule consisting of mostly fibrous connective tissue
lutreal phase
progesterone is dominant as the uterus prepares for implantation
Septa (testes)
connective tissue divisions within the testis that divides the internal portion of the organ into numerous lobules
The interstitial cells or Leydig cells
secrete testosterone.
Lobules
cone shaped compartments within the interior protion of the testis;
formed by the incomplete septa of the tunica albuginea
Endometrial cycle
Divided into the proliferative, secretory and ischemic phases
Seminiferous tubules
the sight of spermatogenesis in the testes;
surrounded by a loose connective tissue stroma that surrounds the tubules and contains clusters of interstitial cells
The opening in the abdominal wall through which the testes descend is the
inguinal canal
Interstitial cells
endocrine cells located between the seminiferous tubules; produce testosterone
Proliferative
proliferation of endometrium dominant
Tubuli recti
a set of short, straight tubules into which the seminiferous tubules empty
Male infants can be born with an undescended testis. This means that the testis remains
in the abdominopelvic cavity.
Rete testis
a tubular network into which the tubuli recti empty
secretory phase
progesterone dominant pahse cause endometrial glands to continue to grow and become dense preparatory to implantation
Efferent ductules
each testis contains 15-20 of these tubules into which the rete testis empties into; pierce the tunica albuginea to exit the testes;
inner layer contains ciliated pseudostratified columnar epithelium that helps move sperm cells out of the testis
The Sertoli cells provide
nourishment for development of sperm.
Gubernaculum
a fibromuscular cord that attaches the testes to the tissue that will become the scrotum; developed by the 14th week
ischemic
occurs only if fertilization does not occur. Corpus luteum regresses, progesterone and estrogen production decreases. Endometrium degenerates, capillaries rupture and endometrium sloughs off
Inguinal canal
bilateral oblique passageways in the anterior abdominal wall;
forms between weeks 14 and 28; testes move through them to descend into the srotum;
much smaller in females
isolates sperm cells from the immune system.
The blood-testes barrier
Which substance found in Sertoli cells may be the active hormones that promote sperm cell formation?
dihydrotestosterone and estradiol
FSH
releases androgen-binding protein (ABP)
The ovaries and uterus are held in position within the pelvis by bands of tissue called
ligaments
LH
releases testosterone
Cryptorchidism
a failure of one or both of the testes to descend into the scrotum; the higher temperature of the abdominal caivty prevents nromal sperm production
The ovary is attached to the superior margin of the uterus by the
ovarian ligament
ABP
binds with testosterone to promote spermatogenesis
Sustentacular cells (Sertoli cells)
large cells that extend from the periphery to the lumen of the seminiferous tubule;
nourish germ cells; probably work with interstitial cells in producing numeorus hormones
The ovary is surrounded by a layer of fibrous connective tissue called the
tunica albuginea.
Blood-testis barrier
tight juncitons located between sustentacular cells; isolates sperm cells from the immune system;
significant because as sperm cells develop, they form surface antigens that the immune system would attack
A primary oocyte with a single layer of granulosa cells is most appropriately called
a primordial follicle.
Dihydrotestosterone
a hormone produced in sustentacular cells from testosterone
A primary follicle contains
several layers of granulosa cells
Androgen-binding protein
a protein secreted into the seminiferous tubules by the sustentacular cells;
carries hormones created in the testis to the epididymis
As a secondary follicle enlarges
a theca or capsule is formed around it
A follicle containing a secondary oocyte and a single fluid-filled antrum is called a _____ follicle
graafian or mature
The release of the secondary oocyte from the ovary is called
ovulation
is produced in the ovary and then leaves the ovary?
secondary oocyte
The secondary oocyte completes the second meiotic division when
it is penetrated by a sperm cell.
Follicles in the ovary that are never ovulated
degenerate.
atrophic vaginitis
physiologic changes associated with decreasing amounts of estrogen as women age. Thinning of vaginal tissue, painful intercourse, itching, burning or irritation. pH becomes slightly alkaline increasing susceptibility to infxn
Acrosome
a cap on the head of the spermatozoan;
contains hydrolytic enzymes used to pierce the surface of the secondary oocyte
The corpus luteum is a gland that
secretes progesterone.
Epididymis
a comma shaped structure on the posterior side of the testis into which the efferent ductus leads;
site of final sperm cell maturation
endometriosis
growth of the endometrial tissue outside the uterus. S/S include lower backache, painful intercourse etc
follicular stage last to appear
corpus albicans
Stereocilia
elongated microvilli within the duct of the epididymis that function to increase the surface area of the epithelial cells that absorb fluid from the lumen of the duct
PID pelvic inflammatory disease
pathogenic invasion of the fallopian tubes, ovaries or both. May be gonococcus, streptococcus and staphylococcus and other infxn that are ascending in nature. Risk factors include multiple sexual partners, frequent intercourse, IUDs and childbirth.
S/S low grade fever, pelvic and abdominal pain, foul-smelling vaginal dischange
Ductus deferens (vas deferens)
the emerging end of the epididymis, ascends along the posterior side of the testis medial to the epididymis and become associated with the blood vessels and nerves that supply the testis
Cholesterol and Steroids can be made from Acetate, (Acetyl CoA) and this process is called:
De novo
Fibroid tumors (leiomyoma)
benign tumors that grow in or on the uterus.
S/S excessive heavy menstrual flow, pelvic pressure, dysmenorrhea, abdominal enlargement and constipation
dysmenorrhea
painful menstruation. Common in nulliparous women, not having intercourse.
S/S uterine cramping, irritation and contractions
Amonorrhea
absence of menstruation. Primary is absence of menstruation by age 17.(anatomical or genetic abnormalities such as Turner syndrome) Secondary is absence after 6 months of regular periods or 12 months or irregular periods. (anatomic abnormalities, nutritional deficits, excessive exercise, decreased body fat, endocrine dysfunction, emotional disturbances, medication side effects, pregnancy and lactation)
cystocele
support between the vagina and bladder is weakened
Male urethra
extends from the urinary bladder to the distal end of the penis;
passageway for male reproductive fluids and urine; divided into three parts, prostatic, membranous, and spongy
urethrocele
downward displacement of the urethra into the vagina
Prostatic urethra
a section of the male urethra that is connected to the urinary bladder and passes through the prostate gland;
ejaculatory ducts and other ducts join the urethra here
rectocele
weakening between the vagina and rectum
Membranous urethra
shortest part of the urethra;
extends from the prostate gland through the perineum
fistula
abnormal opening between internalorgans or between an organ and the exterior body
Spongy urethra
the longest part of the urethra;
extends from the membranous urethra through the length of the penis
vesicovaginal fistulas
between vagina and bladder that causes urine to leak into the vagina
rectovaginal fistulas
rectum and vagina and cause flatus and feces to enter vagina. Both fistulas cause excoriation and irritaiton and may lead to severe infxn. some fistuls spontaneously heal, others require surgical excision
Sertoli cells secrete
Inhibin, Mullerian inhibitory factor/hormone
Cryptorchidism
Failure of of one or both of testes to descend into scrotum
Prevents normal sperm development
Spermatozoa produced in
seminiferous tubules
Spermatogonia divide (mitosis) to form
primary spermatocytes
Seminal vesicles
sac-shaped glands located next to the ampullae of the ductus deferentia; have capsules containing fibrous connective tissue and smooth muscle cells
Primary spermatocytes (first division of meiosis) divide to form
secondary spermatocytes
Prostate gland
consists of both glandular and muscular tissue and is about the size and shape of a walnut; dorsal to the symphysis pubis at the base of the urinary bladder
Secondary spermatocytes (second division of meiosis) divide to form
spermatids
Spermatids develop an acrosome and flagellum
Bulbourethral glands
a pair of small glands located near the membranous part of the urethra; small ducts from each gland unite to form a single duct which enters the songy urethra at the base of the penis
the production of a secondary oocyte
Oogenesis
Semen
a composite of sperm cells and secretions from the male reproductive glands;
60% from the seminal vesicles
30% from the prostate gland
5% from the testes
5% from the bulbourehtral glands
cells from which oocytes develop
Oogonia
surround by granulosa cells and called a primordial follicle
Primary oocytes
Primordial follicle becomes a primary follicle when
oocyte enlarges and cells change
Follicle swells and ruptures, secondary oocyte is released from ovary
Second meiotic division completed when secondary oocyte unites with sperm cell to form zygote
Ovulation
Graafian follicle become
corpus luteum
corpus albicans
corpus luteum not fertalized
What are the primary effects of LH on the male reproductive system?
binds to interstital cells in the testes and causes them to increase their rate of testosterone synthesis and secretion
What are the primary effects of FSH on the male reproductive system?
binds primarily to sustentacular cells in the seminiferous tubules and promotes sperm cell development
Inhibin
a hormone secreted by the sustentacular cells of the seminiferous tubules; inhibits FSH secretion from the anterior pituitary
Human chorionic gonadotropin (HCG)
a gonadotropin-like hormone secreted by the placenta;
stimulates the synthesis and secretion of testosterone by the fetal testes before birth
Broad ligament
an extension of the peritoneum that spreads out on both sides of the uterus and to which the ovaries and uterine tubes are attached;
Mesovarium
a peritoneal fold that attaches each ovary to the posterior surface of the brad ligament
Suspensory ligament
extends from the mesovarium to the body wall, helping to support the ovaries
Ovarian ligament
attaches the ovary to the superior margin of the uterus