Definition

1. Noun:
   • A main organ that is situated inside the body: An "internal organ" is a vital structure within an organism, typically performing specific functions necessary for life. These are distinct from external body parts.

Usage

• The term "internal organ" is used in medical, biological, and general contexts to refer collectively or individually to organs located inside the torso or cranial cavities.
• It is often used in contrast to external body parts (like skin or limbs) or superficial structures.
• Example:

Examples

• Noun:
  • The heart, liver, and kidneys are all vital internal organs.
  • The scan revealed no damage to any internal organ.
  • Certain diseases can affect multiple internal organs simultaneously.

Advanced Usage

• "to donate an internal organ": to agree to have one of your healthy organs surgically removed and transplanted into another person.
  • He made the brave decision to donate an internal organ to save his sister's life.

Variants and Related Words

• Organ (n): A more general term for a part of an organism that is typically self-contained and has a specific vital function. Not all organs are internal (e.g., the skin is an external organ).
• Viscera (n, plural): A formal or medical term referring to the internal organs in the main cavities of the body, especially those in the abdomen.
• Visceral (adj): Relating to the viscera; also used figuratively to describe deep, instinctive feelings.

Synonyms

• Viscus (singular of viscera): A formal term for an internal organ, especially one within the abdomen.
• Innards: An informal, sometimes humorous term for internal organs or guts.

Related Phrases

• Internal organ failure: The condition where one or more vital internal organs cease to function properly.
  • The patient was admitted to the hospital with multiple internal organ failure.
• Internal organ system: A group of internal organs that work together to perform complex bodily functions (e.g., the digestive system).
  • The lecture focused on the internal organ systems of mammals.

Noun

1. a main organ that is situated inside the body