Male Reproductive Histology Flashcards
Leydig Cell
Secretions and Their Functions
Testosterone: Gonad development, Spermatogenesis, Accessory sex gland secretion
Insulin-Like Protein 3: Testes descent, promotes meiotic divisions
Leydig Cell
Histological Characteristics
Polygonal, eosinophilic cells with Crystals of Reinke and Lipid Droplets
Sertoli Cells
Histological Characteristics and Functions
Simple columnar with processes extending out from cell and dark nucleolus
Secrete ABP, form blood-testis barrier and support developing spermatozoa
Prostate Gland
Histological Characteristics and Secretions
Simple or Pseudostratified Columnar
Secretes alkaline solution to neutralize vagina
Prostate Gland
Zones and Clinical Significance
Peripheral - touched on DRE, most cancer here
Transitional - Benign Prostatic Hyperplasia here
Central - surrounds urethra and ejaculatory ducts
Periurethral - late Benign Prostatic Hyperplasia
Seminal Vesicle
Histological Characterization and Secretions
Pseudostratified columnar epithelium with folded mucosa
Secretes 75% of semen
fructose, AAs, ascorbic acid, prostaglandins
Bulbourethral Glands
Histological Characterization and Secretions
Simple columnar epithelium with ducts joining spongy urethra
Secretes preseminal fluid to lubricate/neutralize spongy urethra
Sperm Pathway
Seminiferous Tubules Straight Tubule Rete Testis Efferent Ductules Epididymal Duct Ductus Deferens Ejaculatroy Duct
Epididymal Duct
Histological Characterization
Pseudostratified columnar cells with cilia called Principal cells
Cells surround a smooth lumen
Ductus Deferens
Histological Characterization
Pseudostratified columnar cells with cilia
Highly folded mucosa causing rough lumen
Penis Erectile Tissue Characteristics
2 Corpora cavernosa with Deep As. of Penis and Helicine Branches
1 Corpus Spongiosum with spongy urethra
Tunica Albuginea surrounds the three corpora
