Histology Exam 6

Description:	Male, Female Reproductive, & Endocrine System
Category:	Histology
Created by:	ebaltaro on 2008-12-18

Question	Answer
What is the corpus luteum?	After ovulation occurs, highly vascularized area of ovary, secretes progesterone and low amt. of estrogen.
What is the corpus albicans?	Scar left behind after ovulation.
What stimulates ovulation and the formation of corpus luteum?	LH surge.
What supportive cells are outside the basement membrane of a developing follicle?	Theca externa (outer) and theca interna (closer to follicle)
What is the outer layer of the ovary like a surface mesothelium?	Germinal epithelium
Which cells in the ovary release androgens to assist the developing follicle to have high estrogen?	Theca cells
What is the order of follicle development in the ovary?	Primordial- primary- antral-grafian/ corpus luteum/ luteinized
At which stage does the zona pellucida form?	primary oocyte
Describe a primordial follicle.	oocyte with 1 layer of squamous cells
Which part of the ovary has follicles? Which part is in the center?	Stroma/ cortex, Medulla
Epithelium of the ovary is called?	Tunica albiginea
What is the corona radiata?	6-12 layers of granulosa surrounding the oocyte
Which cell is the major source of inhibin/ activin in follicles? What do these hormones do?	Granulosa, tones down FSH, turns up FSH
At what stage does the antrum develop?	Secondary follicle (antral)
What is zona pellucida?	Special glycoprotein structure at the oocyte-granulosa interface.
When do oocytes complete their first meiotic division? second division?	right after ovulation, after fertilization
Order these: tunica albiginea, blood vessels, germinal epithelium, primordial follicle	germinal epithelium, tunica albiginea, primordial follicle, blood vessels,
Where does fertilization normally occur?	ampulla of uterine tube
In the uterine tubes, where is the musclularis externa is most developed?	isthmus (more muscle toward uterus)
Name the parts of the uterine tube in order from uterus to ovary.	isthmus, ampulla, infundibulum, fimbriae
Describe the endothelium of the uterine tubes.	Columnar with ciliated and secretory peg cells
Which layer of the uterus is shed during mentruation?	Stratum functionale of the endometrium
Layers of the uterine wall from outside to inside.	Perimetrium, myometrium, endometrium
The proliferative, secretory, menstrual endometrial phases are classified by?	cell proliferation, hypertrophy and secretory activity, necrosis
The tissue layer of the uterus that contains estrogen responsive glands is?	endometrium
What part of the endometrium stays behind during menstruation?	stratum basale
What are the main characteristics of mammary glands?	dependence on prolactin, merocrine/ apocrine secretion, myoepithelial cells
In mammary glands, oxytocin stimulates?	alveoli contraction
What is the order of spermatogenesis cells from outward to the ST?	spermatogonium, primary spermatocyte, secondary spermatocyte (very short), eary-late spermatids
At which stage of spermatogenesis does crossing over occur?	Primary spermatocyte
Synctial development occurs in the germline of males or females?	Males
What is the order that a spermatid travels?	Seminiferous tubules, tubuli recti, rete, ductus efferentes, ductus epididymis, ductis deferens, ejaculatory duct, urethra
name the three parts of the testes	testis, mediastinum testis, epididymis
In testis which type of cell is responsible for the blood-barrier of the st? What type of barrier?	sertoli, tight junctions
Which cells in between seminif. tubules contain SER,lipid droplets, mitochondria with tubular christae?	Leydig
Which part of spermazoon contains acroneme & fibrous sheath	middle
How many N's does each stage have: spermatogonia, primary spermatocyte, secondary spermatocyte,spermatid/ spermatozoon?	2n, 4n, 2n, n
Which cells secrete androgen binding hormone in testes? Andorgen?	sertoli, leydig
Where is a one-way valve in the male repro system to keep sperm moving one way?	between ST and tubuli recti
What's spermiogenis vs. spermatogenesis?	the formation of the late spermatid (acrosome cap, extrusion bodies, etc) vs. the whole process
What is cryptorchidism?	undescended testes
Which duct in sperms' journey absorbs fluid and has cilia?	Ductus efferentes
Which duct is the first in the excretory pathway, has pseudostratified columnar epithelium, SM basal lamina, single tube, long branches microvilli?	Ductus epididymis
Which excretory duct has thick SM, lots of elastic fibers?	Ductus deferens
Which male accesory glad produces fructose for the sperm? Acid phosphatase? Lubricating fluid?	seminal, prostate, bulbourethral/ cowper's
Which part of prostate develops begnign hyperplasia? carcinoma?	transitional, peripheral
Which erectile tissue surrounds urethra? deep artery x2?	spongeosum, corpus cavernosum
What glands secrete mucus and are found in the penile urethra?	glands of littre