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

What substance is the acidic flavor of fermented milk due, Q. To what subst...

Q. To what substance is the acidic flavor of fermented milk due? Some bacteria ferment milk lactose by lactic fermentation producing lactic acid this product is responsible for

Sources of stem cells-pulp tissue revascularization, A) General:   u...

A) General:   umbilical cord  Placenta  Bone marrow  Ophthalmic cornea { conjectiva of the eye }  Kidney  Spleen  (B) Dental:  Dental pulp

Explain faecal coliforms - microbiological study of water, Explain the Faec...

Explain the Faecal Coliforms - Microbiological Study of Water? The faecal coliforms include a wide range of bacteria, many of which are not primarily the intestinal bacteria. T

Explain oxygen therapyin respiratory support, Explain Oxygen Therapyin resp...

Explain Oxygen Therapyin respiratory support? Oxygen is given to correct hypoxemia. An initial high concentration of oxygen (FiO2) is given while the underlying cause is identi

Define requirements for underwater weighing method, Define Requirements for...

Define Requirements for underwater weighing method? • The equipment required to perform hydrostatic measurements is bulky and maintenance intense. • A large tank of water, usu

Animal viruses, Chart of taxonomy of animal viruses

Chart of taxonomy of animal viruses

Explain dicotyledons, Dicotyledons (2,00,000 species) The dicot's are o...

Dicotyledons (2,00,000 species) The dicot's are of diverse nature. The leaves are net veined, stem contains ring of vascular bundles, cambium tissue is present so secondary

Respiration by cutaneous respiration and diffusion, Q. What is the differen...

Q. What is the difference between respiration by cutaneous respiration and diffusion? Does blood participate in cutaneous respiration? Cutaneous respiration is not as simple as

Illustrate briefly about vitamin B6, Vitamin B 6 (Pyridoxine hydrochloride...

Vitamin B 6 (Pyridoxine hydrochloride) Pyridoxine hydrochloride is a white, crystalline powder, practically odourless. The dry substance is sufficiently stable in air. With pr

Inter phase - cell cycle, The period of life cycle of cell (cell cycle) bet...

The period of life cycle of cell (cell cycle) between two consecutive divisions is termed as the Interphase or misleading called resting phase. It is a period

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