Histology-Male Reproductive System Flashcards
Identify the structures indicated below:
1) Skin w/dartos 2) Cremaster (skeletal muscle) 3) Epididymus & efferent ductules 4) Vas deferens 5) Seminiferous tubules
Identify the structures indicated below:
1) Cremaster 2) Skin 3) Sebaceous gland 4) Hair follicle 5) Processus vaginalis 6) Epididymus
Identify the structures indicated below:
1) Cremaster 2) Processus vaginalis 3) Tunica albuginea 4) Seminiferous tubules
Identify the structures indicated below:
1) Sperm 2) Spermatogonia (dark stem cell at base of seminiferous tubule) 3) Lymphatic vessel 4) Spermatocyte 5) Spermatid 6) Blood vessels 7) Leydig cells 8) Spermatogonia (pale cell) 9) Sertoli cell
Identify the structures indicated in the image below:
1) Tunica albuginea leading into mediastinum testis 2) Mediastinum testis full of rete testis
Identify the structures indicated below:
1) Rete testis 2) Blood vessels 3) Seminiferous tubule 4) Seminiferous tubule transitioning into a straight testis
Identify the type of cells in the structures indicated below:
1) Simple cuboidal epithelium is found in the rete testis 2) Simple squamous epithelium is found in blood vessels
Identify the structures indicated below:
1) Blood vessels 2) Straight testis 3) Seminiferous tubule 4) Interstitial cells 5) Rete testis
Identify the structures indicated below:
1) Ductus epididymus 2) Ductuli efferentes
Identify the structures indicated below:
1) Maturing spermatozoa in the ductus epididymus 2) Stereocilia on pseudo stratified columnar epithelium 3) Basal cells 4) Smooth muscle
What structures are indicated in the image below?
This is the spermatic cord 1) Pampiniform plexus of veins 2) Vas deferens 3) Cremaster fibers 4) Testicular artery
How many layers of muscle are there in the vas deferens?
3: longitudinal, circular, longitudinal
Where would you expect to find the smooth muscle in the structure shown below:
In the seminal vesicles, smooth muscle layers encircle the continuous lumen and is separate from the connective tissue
What structures are indicated in the image below:
1) Utricle 2) Ejaculatory ducts 3) Seminal colliculus 4) Prostatic urethra w/prostatic sinuses.
What organ is this from?
Prostate: note the secretory elements mixed with a fibromuscular stroma.
What structure is indicated below?
Prostatic concretions
What structures are indicated in the image below:
1) Corpus spongiosum 2) Urethra 3) Corpora cavernosa surrounded by tunica albuginea
What structure surrounds the penile urethra?
Erectile tissue of the corpus spongiosum
How can you tell the difference between the corpus cavernous and the rete testis?
Corpus cavernosum has blood vessels + endothelium + smooth muscle. The rete testis have basophilic simple cuboidal epithelium with blood vessels intermixed.
Cells that make up the tunica vaginalis
Mesothelium (simple squamous)
Working from the outside of a seminiferous tubule in, what cell types do you find as you get closer to the lumen?
Myoid cells (forms tubule sheath) -> Spermatogonia (small cells flattened against tubule wall) -> Primary spermatocytes (large cells in meiosis) -> Secondary spermatocytes (rarely found) -> Spermatids (round dense nuclei buried in Sertoli cells) -> Spermatozoa (free of Sertoli cells)
Cells that make up the epididymis
Pseudostratified colunar epithelium with long branching microvilli (stereo cilia)
Stereocilia vs. cilia
Stereocilia are nonmotile
What forms the walls of the lobules of the seminiferous tubules
Septulae testis
What forms the walls of the efferent ductules?
Columnar epithelium with motile cilia.
What sections of the male genital tract has stereocilia?
Epididymus, vas deferens,
How do you know you are in the seminal vesicles?
The mucosa is extensively folded and has abundant smooth muscle. Blood vessels and small sympathetic nerves reside in the connective tissue.
What do secretions of the seminal vesicles contain?
Fructose
Epithelium of the ejaculatory ducts
Simple to stratified columnar epithelium
What type of epithelium is found in the urethra
Transitional -> simple squamous as you approach the pee hole.
How does the appearance of the Leydig cells relate to their function?
They synthesize steroids and thus have abundant mitochondria and SER
