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101 Cards in this Set
- Front
- Back
Scrotum
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contains the testes and is divided into two internal compartments by an incomplete connective tissue septum;
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Menstrual cycle is divided into 2 cycles- what are they?
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ovarian cycle and the endomerial(uterine)cycle
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The location of the testes and epididymides in the scrotum provides
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a temperature that is suitable for normal sperm development.
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Ovarian cycle
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Is divided into follicular phase, the ovulatory phase and the luteal phase
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Optimum temperature for sperm production is 3 degrees cooler than body temperature. which location would the testes produce the most sperm?
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scrotal sac
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Perineum
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the area between the thighs bounded by the symphysis pubis anteriorly, the coccyx posteriorly, and the ischial tuberosities laterally
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Follicular phase
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estrogen dominate when the follicle matures
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Urogenital triangle
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anterior triangle within the perineum;
contains the base of the penis and the scrotum |
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Sperm are produced in the
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seminiferous tubules
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Anal triangle
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posterior triangle within the perineum;
contains the anal opening |
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ovulatory phase
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follicle ruptures from the ovary on approximately the 14th day before onset of the next cycle
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Testes
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small ovoid organs;
primary reproductive organ in the male; both exocrine and endocrine glands |
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Which hormone is produced by the testis
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testosterone
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Tunica albuginea
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the outer part of the testis; thick, white capsule consisting of mostly fibrous connective tissue
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lutreal phase
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progesterone is dominant as the uterus prepares for implantation
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Septa (testes)
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connective tissue divisions within the testis that divides the internal portion of the organ into numerous lobules
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The interstitial cells or Leydig cells
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secrete testosterone.
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Lobules
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cone shaped compartments within the interior protion of the testis;
formed by the incomplete septa of the tunica albuginea |
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Endometrial cycle
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Divided into the proliferative, secretory and ischemic phases
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Seminiferous tubules
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the sight of spermatogenesis in the testes;
surrounded by a loose connective tissue stroma that surrounds the tubules and contains clusters of interstitial cells |
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The opening in the abdominal wall through which the testes descend is the
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inguinal canal
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Interstitial cells
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endocrine cells located between the seminiferous tubules; produce testosterone
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Proliferative
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proliferation of endometrium dominant
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Tubuli recti
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a set of short, straight tubules into which the seminiferous tubules empty
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Male infants can be born with an undescended testis. This means that the testis remains
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in the abdominopelvic cavity.
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Rete testis
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a tubular network into which the tubuli recti empty
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secretory phase
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progesterone dominant pahse cause endometrial glands to continue to grow and become dense preparatory to implantation
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Efferent ductules
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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 |
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The Sertoli cells provide
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nourishment for development of sperm.
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Gubernaculum
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a fibromuscular cord that attaches the testes to the tissue that will become the scrotum; developed by the 14th week
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ischemic
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occurs only if fertilization does not occur. Corpus luteum regresses, progesterone and estrogen production decreases. Endometrium degenerates, capillaries rupture and endometrium sloughs off
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Inguinal canal
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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 |
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isolates sperm cells from the immune system.
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The blood-testes barrier
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Which substance found in Sertoli cells may be the active hormones that promote sperm cell formation?
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dihydrotestosterone and estradiol
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FSH
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releases androgen-binding protein (ABP)
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The ovaries and uterus are held in position within the pelvis by bands of tissue called
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ligaments
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LH
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releases testosterone
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Cryptorchidism
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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
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The ovary is attached to the superior margin of the uterus by the
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ovarian ligament
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ABP
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binds with testosterone to promote spermatogenesis
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Sustentacular cells (Sertoli cells)
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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 |
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The ovary is surrounded by a layer of fibrous connective tissue called the
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tunica albuginea.
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Blood-testis barrier
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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 |
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A primary oocyte with a single layer of granulosa cells is most appropriately called
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a primordial follicle.
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Dihydrotestosterone
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a hormone produced in sustentacular cells from testosterone
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A primary follicle contains
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several layers of granulosa cells
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Androgen-binding protein
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a protein secreted into the seminiferous tubules by the sustentacular cells;
carries hormones created in the testis to the epididymis |
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As a secondary follicle enlarges
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a theca or capsule is formed around it
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A follicle containing a secondary oocyte and a single fluid-filled antrum is called a _____ follicle
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graafian or mature
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The release of the secondary oocyte from the ovary is called
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ovulation
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is produced in the ovary and then leaves the ovary?
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secondary oocyte
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The secondary oocyte completes the second meiotic division when
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it is penetrated by a sperm cell.
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Follicles in the ovary that are never ovulated
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degenerate.
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atrophic vaginitis
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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
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Acrosome
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a cap on the head of the spermatozoan;
contains hydrolytic enzymes used to pierce the surface of the secondary oocyte |
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The corpus luteum is a gland that
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secretes progesterone.
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Epididymis
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a comma shaped structure on the posterior side of the testis into which the efferent ductus leads;
site of final sperm cell maturation |
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endometriosis
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growth of the endometrial tissue outside the uterus. S/S include lower backache, painful intercourse etc
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follicular stage last to appear
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corpus albicans
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Stereocilia
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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
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PID pelvic inflammatory disease
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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 |
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Ductus deferens (vas deferens)
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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
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Cholesterol and Steroids can be made from Acetate, (Acetyl CoA) and this process is called:
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De novo
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Fibroid tumors (leiomyoma)
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benign tumors that grow in or on the uterus.
S/S excessive heavy menstrual flow, pelvic pressure, dysmenorrhea, abdominal enlargement and constipation |
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dysmenorrhea
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painful menstruation. Common in nulliparous women, not having intercourse.
S/S uterine cramping, irritation and contractions |
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Amonorrhea
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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)
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cystocele
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support between the vagina and bladder is weakened
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Male urethra
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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 |
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urethrocele
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downward displacement of the urethra into the vagina
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Prostatic urethra
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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 |
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rectocele
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weakening between the vagina and rectum
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Membranous urethra
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shortest part of the urethra;
extends from the prostate gland through the perineum |
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fistula
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abnormal opening between internalorgans or between an organ and the exterior body
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Spongy urethra
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the longest part of the urethra;
extends from the membranous urethra through the length of the penis |
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vesicovaginal fistulas
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between vagina and bladder that causes urine to leak into the vagina
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rectovaginal fistulas
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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
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Sertoli cells secrete
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Inhibin, Mullerian inhibitory factor/hormone
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Cryptorchidism
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Failure of of one or both of testes to descend into scrotum
Prevents normal sperm development |
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Spermatozoa produced in
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seminiferous tubules
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Spermatogonia divide (mitosis) to form
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primary spermatocytes
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Seminal vesicles
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sac-shaped glands located next to the ampullae of the ductus deferentia; have capsules containing fibrous connective tissue and smooth muscle cells
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Primary spermatocytes (first division of meiosis) divide to form
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secondary spermatocytes
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Prostate gland
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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
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Secondary spermatocytes (second division of meiosis) divide to form
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spermatids
Spermatids develop an acrosome and flagellum |
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Bulbourethral glands
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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
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the production of a secondary oocyte
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Oogenesis
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Semen
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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 |
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cells from which oocytes develop
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Oogonia
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surround by granulosa cells and called a primordial follicle
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Primary oocytes
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Primordial follicle becomes a primary follicle when
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oocyte enlarges and cells change
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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
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Graafian follicle become
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corpus luteum
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corpus albicans
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corpus luteum not fertalized
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What are the primary effects of LH on the male reproductive system?
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binds to interstital cells in the testes and causes them to increase their rate of testosterone synthesis and secretion
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What are the primary effects of FSH on the male reproductive system?
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binds primarily to sustentacular cells in the seminiferous tubules and promotes sperm cell development
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Inhibin
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a hormone secreted by the sustentacular cells of the seminiferous tubules; inhibits FSH secretion from the anterior pituitary
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Human chorionic gonadotropin (HCG)
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a gonadotropin-like hormone secreted by the placenta;
stimulates the synthesis and secretion of testosterone by the fetal testes before birth |
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Broad ligament
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an extension of the peritoneum that spreads out on both sides of the uterus and to which the ovaries and uterine tubes are attached;
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Mesovarium
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a peritoneal fold that attaches each ovary to the posterior surface of the brad ligament
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Suspensory ligament
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extends from the mesovarium to the body wall, helping to support the ovaries
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Ovarian ligament
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attaches the ovary to the superior margin of the uterus
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