Animal Reproduction Quiz 2 (chapters 4-5)
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Male reproductive tract, function and form
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22 Terms
The testis
The site of gamete and hormone production
Where gametes and androgens are bor
The testis
The testis parenchyma
Seminiferous tubules that house developing gametes
What a mammalian gamete needs
Immune privilege, correct hormone signaling, temperature homeostasis
Immune privilege
the blood testis barrier (BTB) saves sperm from self
Where testosterone is made
Leydig cells
The scrotum
Supports and controls temperature of the testis through evaporation
The spermatic cords
Connect the testis to the body
Cremaster muscle
Supports testis
Pampiniform plexus
T return to body, testis heat exchange
What are the primary functions of the testis and the testis support tissues?
Gamete and hormone production
Excurrent ducts
Move and modify gametes
Efferent ducts
Moving and concentrating gametes
Epididymis
Single LONG tubule, surrounded by smooth muscle to move sperm, multiple segments with different cell types to generate different environments
Ductus deferens (vas deferens)
Narrow epithelium surrounded by smooth muscle, moves spermatozoa from caudal epididymis to accessory sex glands
What are the primary functions of the excurrent ducts?
Gamete maturation, gamete delivery, and seminal fluid production and delivery
Accessory sex glands
Generate seminal plasma, includes ampulla, vesicular gland, prostate gland, and bulbourethral gland
Ampulla
Widening of vas deferens, moves fluid and sperm from vas to urethra (smooth muscle), secretes seminal fluid (mucosa)
Vesicular glands (seminal vesicles)
Similar morphology to ampulla, NOT a contiguous portion of the reproductive tract, generates and stores seminal fluid (majority of ejaculate)
Prostate
Species specific morphology, generates prostate fluid, protects sperm after ejaculation, PSA (Prostate Specific Antigen)
PSA (Prostate Specific Antigen)
Reduces semen viscosity
What are the primary functions of accessory sex glands?
Seminal fluid production and delivery
Note 
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