gland

1. Origins, structure, and basic meaning

• Structure: 腺 is read せん, has 13 strokes, and relates to glands that secrete substances in the body.
• Basic usage: 乳腺 is read にゅうせん, and 汗腺 is read かんせん.

2. Common pitfalls and similar expressions

• 乳腺 and 汗腺
  • 乳腺 means mammary gland.
  • 生物の講義で乳腺の位置を模型から学んだ。 means “In a biology lecture, we learned the location of mammary glands using a model.”
  • 汗腺 means sweat gland.
  • 皮膚の模型では汗腺が青い管で示されている。 means “The sweat glands are shown as blue tubes in the skin model.”