1 answer

Describe the body's lines of defense.

Question:

describe the body's lines of defense.


Answers

Immune system refers to thr body's ability to fight infection .It csn be either natural or acquired immune system.The body's line of defence mechanism is by

  • First line defence mechanism
  • Second line defence mechanism
  • Third line defence mechanism

The first line of defence mechanism is by physical and chemical barriers.This includes the skin,hair,cilia,mucous,defecation,micturation acts as a physical barrier in prevention of entry of microorganisms. The chemical barriers are lysozyme is one of the enzyme which is produces in tears,saliva which can kill the bacteria.The gastric acid and hyaluronic acid can prevent the growth of microorganisms.The sebum on the skin inhibits the entry of microorganisms via skin

The second line of defence mechanism is by non specific resistance.When the first line fails there is invasion of microorganisms in to the body.The phagocytes engulfs this and kills the microorganism.The site also can be seen for inflammation which means the police force of the body 'WBC ' has rounded up the microbes. In addition to this the body's temperature is increased so that the body doesn't be a suitable place for growth of microorganisms. This is a second line of innate immunity.

The third line of defence mechanism is by specific resistance .This is a type of acquired immunity in ehich the antigens are targeted by the antibodies namely by T cells and B cells and kills the bacteria.

.

Similar Solved Questions

1 answer
U-J3590025oysun- she-ralseco=5854134&centerwin-yes INFO 240_15 Spring 2020 Alexandra Marquez & | 04/27/20 8:22 PM Homework: Assignment 12...
u-J3590025oysun- she-ralseco=5854134&centerwin-yes INFO 240_15 Spring 2020 Alexandra Marquez & | 04/27/20 8:22 PM Homework: Assignment 12 Score: 0 of 1 pt 12.3.17 ( 3 of 4 (2 complete) HW Score: 8.33%, 0.33 of 4 Question Help A magazine used the summated rating of 10 restaurants to predict t...
1 answer
Air at 10°C and 80 kPa (static values) enters the diffuser of a jet engine steadily...
Air at 10°C and 80 kPa (static values) enters the diffuser of a jet engine steadily with a velocity of 200 m/s. The inlet area of the diffuser is 0.4 m2. The air leaves the diffuser with a velocity of 40 m/s. Calculate 1) air density 2) air mass flow 3) inlet stagnation temprature 4) Inlet stgna...
1 answer
This question is giving me a bit of a trouble, any assistance would be greatly appreciated!...
This question is giving me a bit of a trouble, any assistance would be greatly appreciated! Question: By how many millivolts will the potential of a potassium electrode increase if it is removed from a 1x10-6 M solution of KCl and placed in a 1x10-3 M solution of KCl? (Give your answer t...
1 answer
SOLVE ABCD. Not just the reactions. 5:09イ LTE Calculate reactions and show all the pin forces...
SOLVE ABCD. Not just the reactions. 5:09イ LTE Calculate reactions and show all the pin forces on member ABco This is a frame and i want ail forces on the member ABCD 5' 3' 0.5' R T B 3' 1C 3' 500#...
1 answer
5.22 Give the structures of the free radical intermediates in the peroxide-initiated reaction of HBr with...
5.22 Give the structures of the free radical intermediates in the peroxide-initiated reaction of HBr with each of the following alkenes. a D CH, B och...
1 answer
One of the most common PDFs is The Binomial The Cuneiform The Poisson The Likert
One of the most common PDFs is The Binomial The Cuneiform The Poisson The Likert...
1 answer
26. Absorption of calcium is improved by which vitamin? a. vitamin C b. vitamin A c. vitamin D d. vitamin K...
26. Absorption of calcium is improved by which vitamin? a. vitamin C b. vitamin A c. vitamin D d. vitamin K Show transcribed image text 26. Absorption of calcium is improved by which vitamin? a. vitamin C b. vitamin A c. vitamin D d. vitamin K...
1 answer
Help Save & Ex A company's income statement showed the following net income, $133,000 depreciation expense,...
Help Save & Ex A company's income statement showed the following net income, $133,000 depreciation expense, $39,500 and gain on sale of plant assets, $13,500. An examination of the company's current assets and current liabilities showed the following changes accounts receivable decreased...
1 answer
Identify the bay, sound, or gulf that serves as base for a) the Sacramento and San Joaquin rivers b) the Alabama River system c) the Connecticut River system Thanks for your help
identify the bay, sound, or gulf that serves as base for a) the Sacramento and San Joaquin rivers b) the Alabama River system c) the Connecticut River system Thanks for your help!!!...
1 answer
Your client owns an industrial building that secures a $3,500,000 loan provided by your bank. There...
Your client owns an industrial building that secures a $3,500,000 loan provided by your bank. There are four tenants in the building that generate gross annual revenue of $973,000. Last quarter's balance sheet shows total current assets of $153,200, including cash of $72,000; accounts receivable...
1 answer
At t = 0 a 1.2 kg ball is thrown from the top of a tall...
At t = 0 a 1.2 kg ball is thrown from the top of a tall tower with velocity v= (11 m/s)i + (29 m/s)j . What is ΔU of the ball-Earth system between t = 0 and t = 4.3 s (still free fall)?...
2 answers
Which is correct: make or makes? "There is no work hung on the walls or star charts on the door that make(s) kids compare themselves"
Which is correct: make or makes? "There is no work hung on the walls or star charts on the door that make(s) kids compare themselves"...
1 answer
QUESTION BEGINNING AT #13 The comparative financial statements of Marshall Inc. are as follows. The market price of M...
QUESTION BEGINNING AT #13 The comparative financial statements of Marshall Inc. are as follows. The market price of Marshall Inc. common stock was $ 61 on December 31, 20Y2. Marshall Inc. Comparative Retained Earnings Statement For the Years Ended December 31, 20Y2 and 20Y1 20Y2 20Y1 Retained earn...
1 answer
The following information relates to the debt securities investments of Sarasota Company. 1. On February 1,...
The following information relates to the debt securities investments of Sarasota Company. 1. On February 1, the company purchased 12% bonds of Gibbons Co. having a par value of $330,000 at 100 plus accrued interest. Interest is payable April 1 and October 1. 2. On April 1, semiannual interest is rec...
1 answer
Compare the concept of RAID and describe its various levels in about 300 words in a...
Compare the concept of RAID and describe its various levels in about 300 words in a Table on the following parameters : 1. Cost 2. Availability 3. Response time 4. Reliability...
1 answer
Please answer... I keep getting e0= 0.173 but this is not the right answer (11%) Problem...
Please answer... I keep getting e0= 0.173 but this is not the right answer (11%) Problem 5: Suppose you rotate a 1000 turn, 23 cm diameter coil in the Earth's 5.00 x 10T magnetic field. What is the peak emf generated in V, given the plane of the coil is originally perpendicular to the Earth&...