乳腺

1. Origins, structure, and basic meaning

• Structure: 乳腺 is read as にゅうせん and is an anatomical noun for a mammary gland, the organ that produces milk.
• Basic usage: Learning its location from a model appears in 乳腺の位置を模型から学ぶ, while the structure of an animal’s mammary glands appears in 動物の乳腺の構造.

2. Common pitfalls and similar expressions

• A term for location and structure
  • It is a specialized anatomical term used when explaining an organ’s location and structure in biology or health materials.
• Difference from 乳房
  • Unlike the word for the breast as a body part, this term specifically denotes its milk-producing glandular tissue.