Module 11 - Male Reproductive Anatomy

Scrotum - 2 Muscles

Dartos - outer + retract

Cremaster - extension of abdominal

Spermatic Cord

Artery/vein/nerves

Vas deferens

Pampiniform plexus

Pampiniform Plexus

Veins

Countercurrent heat exchanger

2-3 deg cooler temp

Order of Tubules

Seminiferous

Straight

Rete

Efferent

Sertoli (Sustentacular) Cells

Support

Secrete ABP

Blood-testis barrier

Androgen Binding Protein

Bind to testosterone to maintain high conc for spermatogenesis

Epididymis - Histology

Pseudostratified columnar

Stereocilia

Stereocilia - Function

Increase SA

Fluid absorption

Capacitation

Sperm become fully functional + motile

Remove cholesterol from plasma membrane

Fibrinogen vs Fibrolysin

Seminal vs prostate

Urethra - 3 Parts

Prostatic

Membranous

Spongy

Erection vs Ejaculation - NS

PNS vs SNS