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3 years ago
Involuntary contraction of this smooth muscle layer wrinkles and thickens the walls of the scrotum to prevent heat loss.
A) tunica vaginalis
B) dartos muscle
C) tunica albuginea
D) cremaster muscle
E) internal spermatic fascia
Textbook 
Human Anatomy
Edition: 7th
Authors:
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3 years ago
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Good luck on your exam, snowhite!
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