Reproductive System Flashcards
Stage during which the embryo cannot be identified as male or female?
Indifferent stage
stage during when embryo can be identified as male or female?
Sexual differentiation stage
Development of Gonads: Indifferent stage, includes?
- Formation of the gonadal ridge
- Incorporation of priomordial germ cells into the gonadal ridge
- Formation of gonadal cords
Supporting cells are derived from?
Incorporation of priomordial germ cells into the gonadal ridge
splanchnic mesoderm
Primordial germ cells are derived from?
Yolk sac endoderm
Gonadal tubules form loops namely?
Seminiferous tubules
Semineferous tubules connect with a network of tubules namely the?
Rete testis
Primordial germ cells inside seminiferous tubules?
Spermatogonia
Some spermatogonia that enter the prophase stage of meiosis?
Primary spermatogenic cells
Cords of epithelial cells from mesonephric tubules?
Sustentacular (Sertoli) cells
Mesenchymal cells from gonadal ridge?
Interstitial (Leydig) cells
A sheet of mesenchyme from gonadal ridge?
Tunica albuginea
It continues as the tubuli recti, which conenct with the rete testis within the mediastinum testis?
Convulated seminiferous tubules
A columnar with an oval euchromatic nucleus and prominent nucleolus?
Sertoli cell
Primordial germ cells inside primordial follicles?
Oogonia
Each oogonium enters the prophase stage of meiosis?
Primary oocyte
Small, round body located at the periphery of the ovarian cortex and composed of a large primary oocyte surrounded by a single layer of flat follicular cells?
Primordial follice
Slightly larger round body composed of a large primary oocyte surrounded by a single layer of cuboidal or columnar follicular cells?
Primary follicle
Round body larger than the primary follicles?
Growing or secondary follicle
The largest follicle that may bulge from the surface of the ovary. It has the same structure as the growing follcle?
Mature follicle
In carnivores, ovarian follicle with more than one oocyte are found which are called?
Polyovular or polyoocytic follicles
Blood clot, follicular bleeding in porcine ovary?
Corpus hemorrhagicum
Mesonephric tubules that fuse with seminiferous tubules?
Efferent ductules
Glomerular capsules of the above tubules?
Rete testis
Mesonephric duct located within the mesonephros
Ductus epididymis
Mesonephric duct outside of the caudal to the mesonephros?
Ductus deferens
Urogenital sinus in caudal part?
Pelivic urethra
Ciliated and non-ciliated cells, is the l.e. of what?
Efferent duct
lining epithelium of ductus epididymis?
Taller psudostratified columnar epithelium
Uterine tube or F.T. is composed of 4 segments which are?
- Infundibulum
- Ampulla
- Isthmus
- Intramural part
It is the cranial funnel shaped portion?
Infundibulum
It is a thin walled part extending caudally fromthe infundibulum?
Ampulla
Numerous finger-like processes present in the infundibulum?
Fimbriae
L.E. of the folds in equine uterine tube?
Simple columnar secretory and ciliated epithelium
A narrow muscular segment that joins the uterus?
Isthmus
Wall of uterine horn, has inner layer called?
Endometrium
Wall of uterine horn, has a muscular layer called?
Myometrium
Wall of uterine horn, has an outer serous mebrane layer called?
Perimetrium
The gland is a compound tubuloalveolar mucous in type and the secretory units are lined by simple columnar or pyramidal epithelium
Bulbourethral gland
In male, the epithelium of mesonephric duct evaginates then becomes?
Seminal vesicle
In female, the epithelium of mesonephric duct evaginates then becomes?
None
The seminal vesicle is lined by?
Simple columnar serous secretory epithelium
Indifferent Stage:
Lateral mesoderm near the cloacal membrane, genital tubercle becomes the?
Penis
Indifferent Stage:
Lateral mesoderm near the cloacal membrane, genital swellings becomes the?
Scrotum
Indifferent Stage:
Lateral mesoderm near the cloacal membrane, genital folds becomes the?
Penile urethra
Right and left cloacal folds fuse in the midline b/w the anal orifice and urogenital orifice to the?
Genital rephe
In ungulates, a circular band of muscles called? It forms a ring that pulls the penis against the body wall.
Umbilical sphincter
At the descent of the testes, cranial fold?
Dipahragmatic ligament of mesonephros
At the descent of the testes, caudal fold?
Lingual ligament of mesonephros
Lingual ligament of mesonephros becomes the?
Gubernaculum
Peritoneum reflected over the testes?
Visceral tunica vaginalis
Peritoneum that lines the scrotal pouch?
Parietal tunica vaginalis
Indifferent Stage:
In female, lateral mesoderm near the cloacal membrane, genital tubercle becomes the?
Clitoris
Indifferent Stage:
In female, lateral mesoderm near the cloacal membrane, genital swellings becomes the?
It degenerates.
Indifferent Stage:
In female, lateral mesoderm near the cloacal membrane, genital folds becomes the?
Labia minora of vulva
