FINAL - Male Reproductive System Flashcards
Lobules of the testes are composed of what?
Seminiferous Tubules
Epididymis; Outside or Inside the Testes?
Outside
What secretory cells within the testes produce testosterone?
Interstitial Cells of Leydig
Sertoli Cells; Structure and Function?
- Pale cytoplasm, elongated nuclei
- Establish the blood-testes barrier via tight junctions
Germinal Epithelium?
Spermatogenic Cells that undergo meiosis to produce sperm
What is the capsule that surrounds the testes?
Tunica Albuginea
What are the 4 stages of Spermatogenesis?
- Spermatogonia
- Primary Spermatocytes (largest cells seen, prominent chromatin)
- Spermatocytes (have half the number of chromosomes)
- Spermatids (4 from each primary spermatocyte, undergo speriogenesis to become true sperm)
Define Speriogenesis
Process by which Spermatids become true sperm
What/Where is the Epididymis?
Coiled duct found at the posterior end of the testes
Epithelium of Epididymis?
Pseudostratified Columnar Epithelium
Epididymis has cilia, stereocilia, or microtubles?
Stereocilia
3 Main Functions of the Epididymis
- Nourishes the sperm
- Storage of sperm for maturation
- Sperm transport via peristaltic movement
What is the Vas Deferens?
Long straight duct continuing from the Epididymis back into the abdominal cavity
Describe the musculature of the Vas Deferens?
Thick Muscular Wall
Vas Deferens: Function
Transports sperm at time of ejaculation
The Vas Deferens will join the duct of the seminal vesicle to from the ______________ , which empties into the prostate.
Ejaculatory Duct
What are the 4 stages of Spermatogenesis?
- Spermatogonia
- Primary Spermatocytes (largest cells seen, prominent chromatin)
- Spermatocytes (have half the number of chromosomes)
- Spermatids (4 from each primary spermatocyte, undergo speriogenesis to become true sperm)
Define Speriogenesis
Process by which Spermatids become true sperm
What/Where is the Epididymis?
Coiled duct found at the posterior end of the testes
Epithelium of Epididymis?
Pseudostratified Columnar Epithelium
Epididymis has cilia, stereocilia, or microtubles?
Stereocilia
3 Main Functions of the Epididymis
- Nourishes the sperm
- Storage of sperm for maturation
- Sperm transport via peristaltic movement
What is the Vas Deferens?
Long straight duct continuing from the Epididymis back into the abdominal cavity
Describe the musculature of the Vas Deferens?
Thick Muscular Wall
Vas Deferens: Function
Transports sperm at time of ejaculation
The Vas Deferens will join the duct of the seminal vesicle to form the ______________ , which empties into the prostate.
Ejaculatory Duct
What type of gland is a Seminal Vesicle?
Alveolar Type Gland
Epithelium of Seminal Vesicles?
Simple Columnar Epithelium
Seminal Vesicle secretion is high in what, which is used for what?
Secretion is high in fructose. Fructose can be easily converted to energy in the form of ATP which is utilized by the sperm
This gland receives the 2 ejaculatory ducts from the Seminal Vesicles:
Prostate Gland
Describe the fluid the prostate gland ejects?
Slightly acidic, lots of zinc, and small fatty acids called Prostaglandins
At the end of the Penile Urethra, the mucosa changes from ___________ to ______________?
The mucosa changes from Transitional Epithelium to Stratified Squamous
T/F: The Penile Urethra passes through the Prostate Gland
True; Passes through the Prostate Gland and UG Diaphragm
