water vascular system

Thân thiện

A sea star uses its water vascular system to move across the ocean floor.

Definition

1. Noun:
   • A system of fluid-filled tubes and canals found in echinoderms (such as starfish and sea urchins) that is used for locomotion, feeding, and respiration. It operates primarily through hydraulic pressure.

Usage

• The term "water vascular system" is a specific biological term used to describe a key anatomical feature of echinoderms. It is used in scientific, zoological, and educational contexts.
• It functions as a singular noun. Example: "The water vascular system is unique to echinoderms."

Examples

• Noun:
  • The starfish moves its tube feet using its water vascular system.
  • A key function of the water vascular system is to transport oxygen and nutrients.
  • Biologists study the water vascular system to understand echinoderm evolution.

Advanced Usage

• The system's main component is the madreporite, a sieved plate that allows water to enter.
• The term is often discussed in relation to specific structures it comprises, such as the ring canal, radial canals, and tube feet.

Variants and Related Words

• Water vascular (adjective): Pertaining to the system. Example: "The water vascular anatomy is complex."
• Hydraulic system: A broader engineering term for systems using fluid pressure, sometimes used analogously but not synonymously.
• Ambulacral system: A closely related term, often used interchangeably with "water vascular system," specifically referring to the parts associated with the tube feet and grooves.

Synonyms

• Ambulacral system (in many biological contexts).

Related Phrases

• Tube feet operation: Describes a primary function enabled by the water vascular system.
• Locomotory system: A general term for movement systems; the water vascular system is the specific locomotory system for echinoderms.

Học thuật

Noun

1. system of fluid-filled tubes used by echinoderms in locomotion and feeding and respiration