Intro to Male Repro Flashcards
Testes are responsible for?
- Spematozoa production
2. Hormone secretion (testosterone)
3 ducts which collect and store sperm?
- Ductuli efferentes
- Epididymis
- Ductus (vas) deferens
- Ejaculatory duct
What do the exocrine glands of the male repro system do?
Secrete seminal fluid
2 exocrine glands
- Seminal vesicles
2. Prostate gland
Semen consists of?
Seminal fluid + sperm + desquamated duct lining cells
Function of bulbourethral glands?
Secret fluid for lubrication of urethra for passage of semen
Exocrine function of testes
Produce spermatozoa
Endocrine function of testes
Hormone production (testosterone, estrogen)
What cells produce testosterone?
Leydig cells
What cells produce estrogen?
Sertoli cell
Components of capsule
- Tunica albuginea
2. Tunica vaginalis
Tunica vaginalis can also be called?
- Tunica propria
2. Tunica serosa
Tunica albuginea is formed of?
Dense irregular CT
2 parts of testicular stroma
- Mediastinum testis
2. Septula testis
What is mediastinum testis?
CT at anterior pole → surrounds rete testis
What is septula testis?
Septae of CT extending from tunica albuginea to mediastinum → divides testis into lobules
Seminiferous tubules aka?
Tubuli contorti
What surrounds seminiferous tubules?
Basal lamina
Myoid cells
Smooth m. cells outside of basal lamina which aids contraction of seminiferous tubules
Seminiferous tubules have what epithelium?
Stratified epithelium with developing germ cells and Sertoli cells
Sertolie cell functions
- Physical and nutritional support
- Phagocytosis
- Secretion
What does Sertoli cell secrete?
- Estrogen
- Androgen-binding protein
- Activin
- Inhibin
What is androgen-binding protein?
Concentration of testosterone and its derivatives
Activin and inhibin belong to what family?
TGF-beta family protein
Functions of activin and inhibin
- Cell proliferation
- Differentiation
- Apoptosis
