forelimb

Thân thiện

A dog uses its forelimb to scratch behind its ear.

Definition

Noun: * The front limb (or the homologous structure in other animals, such as a flipper or wing): In vertebrate animals, a forelimb is one of the two upper limbs or appendages attached to the front part of the body. It is the anatomical equivalent of an arm, front leg, wing, or flipper, depending on the species.

Examples of Usage

• Noun:
  • The cat stretched its forelimbs after a long nap.
  • In horses, the forelimb bears most of the animal's weight.
  • The evolution of the forelimb into a wing allowed birds to fly.
  • Scientists study the bone structure of a dolphin's forelimb, which is a flipper.

Advanced Usage

• Comparative Anatomy: The term is used to discuss homologous structures—body parts in different species that share a common evolutionary origin, even if their functions differ. For example, a human arm, a bat's wing, and a whale's flipper are all forelimbs.
  • The forelimb of a human, the wing of a bird, and the pectoral fin of a fish are homologous structures.

Variants and Related Words

• Forelimb is a compound word formed from "fore-" (meaning front or anterior) and "limb."
• Hindlimb (noun): The paired limb or appendage at the rear of the body. It is the direct counterpart to the forelimb.
  • The kangaroo uses its powerful hindlimbs for jumping.

Synonyms

• Front limb: A more descriptive synonym.
• Anterior limb: A technical synonym used in scientific contexts.
• Arm (in humans and primates), front leg (in many quadrupeds), wing, flipper: These are specific types of forelimbs.

Antonyms

• Hindlimb: The rear limb.
• Posterior limb: A technical term for the hindlimb.

Học thuật

Noun

1. the front limb (or the homologous structure in other animals, such as a flipper or wing)