球海绵体肌

骨盆肌肉

会阴横肌

男性的外生殖器被肌皮膜包围，该膜内衬有复层鳞状非角化上皮。它呈窄条状，从尿道外口沿阴道两壁延伸至会阴。在底部

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Dr. William Whitbourne

Dr. William Whitbourne