…Under the epithelium lies dense connective tissue, which contains a large amount of smooth muscle, the contraction of which expels semen from the ejaculatory duct and secretions from the prostate through the urethra and out of the body. In addition to the secretions, the glandular cavity contains crystalline matter called prostata concretion, which is a concentric layered structure of secretions that sometimes form. The secretions have a pH of 6.5, are slightly milky white, and contain proteolytic enzymes, acid phosphatase, diastase, and β-glucuronidase. … *Some of the terminology explanations that mention "prostata concretion" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…上皮の下には緻密(ちみつ)な結合組織があり,多量の平滑筋を含んでいて,これの収縮により射精管からの精液と前立腺の分泌物を尿道を経て体外へ放出させる。腺腔には分泌物のほかに前立腺結石prostata concretionとよばれる結晶物がみられるが,これは分泌物が凝集したもので,ときに同心性の層状構造を示す。分泌物はpH6.5で,やや乳白色を呈し,タンパク質分解酵素,酸性ホスファターゼ,ジアスターゼ,β‐グルクロニダーゼなどを含む。… ※「prostata concretion」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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