Human respiratory system - nasal chamber, Biology

Assignment Help:

NASAL CHAMBER -

  1. External nares are 2 in number, i.e., dirhynous. Situated at lower side of nose. Open into nasal chamber.
  2. Nasal chamber opens into pharynx by internal nares.
  3. Nasal chamber is devided into two fossae by Nasal septum or Mesethmoid septa.
  4. In each fossae 3 regions are clear - vastibular region, respiratory region and olfactory region.
  5. The floor of nasal chamber is formed by palate.
  6. Vestibular region is ectodermal in origin, covered by hairy skin. Hair check the dust particles.
  7. Respiratory region is covered by pseudo stratified sensory vascularized cilliated epithelium.
  8. This region acts as a air conditioning and filtering unit.
  9. Olfactory region is covered by olfactory epithelium.
  10. Arising from the wall of each nasal chamber 3 bonny ridges nasal conchae are sup. middle & inferior.
  11. Conchae are covered with mucous membrane, these conchae increase surface area.

Functions -

1.      To detect smell

2.      To check dust particle

3.      To keep air moist

4.      To destroy bacteria by mucous.

5.      Functions as air conditioning.


Related Discussions:- Human respiratory system - nasal chamber

Is phenoxyethanol harmful?, Phenoxyethanol is dangerous and can be absorbed...

Phenoxyethanol is dangerous and can be absorbed through the skin - official sites for toxicity data, though, show little toxicity in man and some toxicity (irritation) with high do

Threshold for an action potential in neuron a, Neuron A is a healthy neuron...

Neuron A is a healthy neuron with all the usual ion channels.  When at rest with a membrane voltage of R millivolts, neuron A produces no action potentials.  The voltage thresh

Give name of the cells capable of making gametes, Q. What is the name of th...

Q. What is the name of the cells capable of making gametes? What is the ploidy of these gamete-forming cells? The cells that form gametes are the germ cells as opposed to the s

Explain successive trophic levels in the pyramid of energy, What would occu...

What would occur to the successive trophic levels in the pyramid of energy if the rate of reproduction of phytoplankton was slowed down? Suggest two factors, which could cause l

Define about the pyranose and furanose ring structure, Define about the Pyr...

Define about the Pyranose and Furanose ring structure? Monosaccharides forming a five-sided ring or a five membered ring (4 C and 1 O), like ribose, are called furanoses. Those

Can you explain secondary metabolites, Q. Can you explain Secondary Metabol...

Q. Can you explain Secondary Metabolites? Secondary metabolites or secondary plant products are those macromolecules that lack nitrogen and arc of restricted occurrence and the

Crown and bridge remover, Crown and bridge remover - Nash\Taylor tempo...

Crown and bridge remover - Nash\Taylor temporary crown remover -morell remover -position the curved tip below the height of contour or at the margin of the crown -Apply seve

Fossils formed by organisms that resemble modern, The oldest fossils look a...

The oldest fossils look as though they were formed by organisms that resemble modern?

Define drawbacks for underwater weighing method, Define drawbacks for under...

Define drawbacks for underwater weighing method? Since the major drawbacks with UWW method are that the subject needs to be totally submerged underwater and exhale all of the a

What is contact plate method - food microbiology, What is Contact Plate Met...

What is Contact Plate Method? Contact Plate (RODAC - Replicate Organism Direct Agar Contact) Method - Contact plates are special petri plates containing suitable agar media wit

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd