Tracheal gills - respiration, Biology

Tracheal Gills - Respiration

In many species of aquatic insects the air in the trachae is replenished by diffusion of oxygen via tracheal gills. Many aquatic insects carry a temporary store of air as a bubble on the body surface which replenishes the air in tracheae during submergence. In other aquatic insects a constant volume of air is held as a thin layer close to the body surface by water repellent hair forming a plasteron (or layer of air).

As long as water is well aerated insects with plasteron can remain submerged for many months. As much as one-third or half of the total capacity of the air system can be emptied in one expiration giving a renewal of about half the volume of the respiratory system. This is much greater than in a mammal at rest, where in each breath only 1/5 of the air contained in the system is renewed.

Posted Date: 1/15/2013 7:40:42 AM | Location : United States







Related Discussions:- Tracheal gills - respiration, Assignment Help, Ask Question on Tracheal gills - respiration, Get Answer, Expert's Help, Tracheal gills - respiration Discussions

Write discussion on Tracheal gills - respiration
Your posts are moderated
Related Questions
Problems with untreated/ammoniated crop residues Besides the low energy and protein contents, crop residues generally contain low content of minerals such as Calcium, Phosphor

Q. What is the special route that lipids follow during digestion? What are chylomicrons? Triglycerides emulsified by the bile within micelles suffer the action of lipases that

How many alleles of genes that condition X-linked traits do female and male individuals respectively present? For every correspondent gene to an X- linked trait women present a

Describe about The implant surgeon The implant surgeon should have basic knowledge of the macroscopic and microscopic anatomy of the jaw bones with their associated neurovascul

Q. Plant classification according to Ancient Greeks and Romans? Hippocrates, "The Father of Medicine" (460-377 B.C.) is reputed to have been one of Democritus 's disciples. He

Explain about Adhesive tape of many varieties Adhesive tape of many varieties with backing materials coated with an adhesive to keep the dressing in place. The adhesive bandage

Antimicrobial prophylaxis Antimicrobial prophylaxis is generally not indicated for cardiac catheterization, varicose vein surgery, most dermatologic and plastic surgery, arteri

Insulin promotes muscle glucose uptake and metabolism. In presence of insulin muscle cells take up glucose and use it as a source of energy. Insulin also promotes storage of insuli

Diagnostic Evaluation   A  study of complete blood count (CBC) and blood chemistry mainly uric acid levels, is necessary for dignostic evaluation.  Radiologic  studies  are

Neurological Assessment The neurological assessment is made up of eight neurological criteria which have high, significance with gestational age. (Fig. 3.2) In order to perf