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Home Q & A Board Biology-Related Homework Help Cell Biology
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8 years ago
Which sphincter is composed of skeletal muscle between the anus and external environment?
A) external anal sphincter
B) internal anal sphincter
C) sphincter of Oddi
D) lower esophageal sphincter
E) upper esophageal sphincter
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venuskyvenusky
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...hello Author
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8 years ago
this is exactly what I needed
sweetalia
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Yesterday
Good timing, thanks!
patod1
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2 hours ago
Thank you, thank you, thank you!
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