Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Tracheoles - Respiration
The tracheal system consists of an air filled system of tubes - the tracheal tubes that branch repeatedly until they become fine as capillaries, and are called tracheoles. The tracheolar endings arc in close proximity to the cells of the body and sometimes they indent into the plasma membrane giving the impression that they actually enter the cells. Trachea varies in diameter from 1-2 mm and the diameter of tracheoles is between 0.6-0.8 mm. In the larger tracheae, thickenings known as taenidia in the cuticular lining prevent the tubes from collapsing. The walls of the tracheae become progressively thinner as they branch so that the tracheolar endings are only 5, μn in diameter. Figure shows the arrangement of tracheal system in some insects.
Figure: Some modifications of the tracheal system in insects. (a) The basic pattern, (b) mechanically ventilated air sacs, (c) terminal spiracles in aquatic insects.
whats polymorphic
Mechanical Prosthetic Valves : These patients should have lifelong anticoagulation. In the absence of anticoagulation systemic embolism and strokes have been reported to be 5-50
Severe Acute Respiratory Syndrome (SARS) After travelers' diarrhea, respiratory infection is the most common infectious disease affecting travelers. In the winter of 2003 a ne
A professor wonders whether good study habits lead to better grades in the final exam. Formulate a specific hypothesis and then design an experiment to test it. In your answer outl
What is neiosis
A 20 year old female university student came to the clinic complaining of palpitations. She has had occasional rapid heart rates but never lasting more than 2 minutes. This time it
Define intracellular Fluid or the water within the cells? The intracellular Fluid or the water within the cells makes up about 40-4596 of the total body weight. Because the bod
Microbodies Peroxisomes and glyoxysomes are microbodies formed from ER which superficially resemble the lysosomes. Peroxisomes are spherical bodies limited by a single membrane
Can our experiences change our brain A. It is now know by Scientists that brain is remarkably "plastic:" it continues to change during the course of life in accordance with our
A biologist examines a series of cells and counts 140 cells in interphase, 10 cells in metaphase, 4 cells in anaphase and 7 cells in telophase. if complete cell cycle requires 24 h
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd