How does the body defend itself from microorganisms, Biology

Assignment Help:

Q. How does the body defend itself from microorganisms and other harmful substances that enter the airway during the breathing process?

The epithelium of the airway is a ciliated epithelium and has mucus-secreting specialized cells, the secreted mucus covers the internal wall of the airway retaining organisms and foreign particles that then are swept by the cilia of the epithelium.

In the mucous ciliated epithelium of the airway there is also intense activity of the immune system with leukocytes and antibodies destroying and inactivating foreign agents.

Other defense mechanisms of the airway are the cough and the sneeze. They help the elimination of semifluid and solid particles like pathologic residuals (sputum) and accidentally aspired objects.


Related Discussions:- How does the body defend itself from microorganisms

Stomata - water loss, Stomata - Water Loss The cross-section of a leaf...

Stomata - Water Loss The cross-section of a leaf shown in Figure shows the position of a typical stoma (plural stomata) which however, differs from species to species, with re

Explain the genetically-modified brinjal developed for, The genetically-mod...

The genetically-modified (GM) brinjal in India has been developed for: 1. Insect-resistance 2. Enhancing shelf life 3. Enhancing mineral content 4. Drought-resistance

Preparation for resuscitation, PREPARATION FOR RESUSCITATION Two train...

PREPARATION FOR RESUSCITATION Two trained, personnel capable of working together to perform all aspects of resuscitation, it may be nurse and paediatrician or two skilled nurs

State about inferior alveolar nerve and artery, Inferior alveolar nerve and...

Inferior alveolar nerve and artery A branch of mandibular nerve, it enters the mandibular foramen on the medial aspect of the ramus above the lingula and exits on the lateral a

Definition of nursing process, Definition of Nursing Process According...

Definition of Nursing Process According to WHO (2977) the "nursing process" is a term applied to a system of characteristic nursing interventions in the health of indivi

Biochemistry, Water is most dense and thus heavier at 4 degreese celceus. A...

Water is most dense and thus heavier at 4 degreese celceus. At 0 degreese celceus ice forms and can float on liquid water. Assuming that ice were most dense at 0 degreese celceus,

Valve replacement, Valve Replacement Replacement of the diseased valve...

Valve Replacement Replacement of the diseased valve is done. This is done biologic tissue valves or mechanical valves. Three types of biologic tissue valves are used. Aut

Do bacteria cells have a nucleus, Q. Do bacteria cells have a nucleus? ...

Q. Do bacteria cells have a nucleus? In bacteria the genetic material is dispersed in the cytosol and there is no inner membrane that delimits a nucleus.

Discuss the example of comprehensive neuropsychology, Discuss the example o...

Discuss the example of Comprehensive neuropsychology  Example of these include deficits of visuo-spatial perception hampering performance on construction tasks, poor comprehe

Quantitative or analytical method for estimation of nitrogen, Define Quanti...

Define Quantitative or Analytical Method for Estimation of Nitrogen and Protein? You may recall reading earlier that proteins contain nitrogen along with carbon, hydrogen and s

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