Endostyles meaning

Endostyles are specialized glandular structures found in the pharynx of filter-feeding marine invertebrates.


Endostyles definitions

Word backwards selytsodne
Part of speech Noun
Syllabic division en-dos-tyles
Plural The plural form of the word "endostyle" is "endostyles."
Total letters 10
Vogais (2) e,o
Consonants (6) n,d,s,t,y,l

The endostyle is a vital organ found in non-vertebrate chordates, such as tunicates and lancelets. This organ plays a crucial role in filtering food particles from the water and secreting mucus for the transportation of these particles to the digestive system.

Function of Endostyles

The primary function of the endostyle is to aid in the process of filter feeding. It helps in capturing food particles, such as plankton, from the surrounding water. The mucus produced by the endostyle traps these particles and moves them towards the digestive organs for nutritional absorption.

Anatomy of Endostyles

The endostyle is a ciliated groove located on the ventral side of the pharynx in non-vertebrate chordates. It is lined with cells that secrete mucus and contain cilia that help in moving the mucus along the groove. The endostyle is considered the evolutionary precursor to the thyroid gland in vertebrates.

Role in Iodine Metabolism

Endostyles play a critical role in iodine metabolism in chordates. Some species have the ability to concentrate iodine from seawater using the endostyle, which is then used in the synthesis of thyroid hormones. This process is essential for proper growth and development in these organisms.

Filter feeding and iodine metabolism are two essential functions associated with the endostyle. The intricate anatomy and physiological role of this organ underline its significance in the feeding and metabolic processes of non-vertebrate chordates.


Endostyles Examples

  1. The endostyles in certain marine organisms help with filter feeding.
  2. Scientists are studying the function of endostyles in the digestive system of tunicates.
  3. Endostyles play a crucial role in the production of mucus in some invertebrates.
  4. The presence of endostyles can vary among different species of marine worms.
  5. Researchers are exploring the evolutionary history of endostyles in chordates.
  6. Endostyles are unique structures found in certain groups of filter-feeding animals.
  7. The development of endostyles is regulated by specific genetic pathways.
  8. In some organisms, endostyles are involved in the transport of food particles.
  9. The coloration of endostyles can provide clues about the health of certain marine creatures.
  10. Endostyles are an important adaptation for organisms living in nutrient-poor environments.


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  • Updated 11/07/2024 - 18:23:43