Question

Which of the following is part of the body's second line of defense? 1- Saliva 2-...

Which of the following is part of the body's second line of defense?

1- Saliva

2- Vomiting

3-Cytotoxic T-cells

4- Phagocytosis

In this case, the stinger of the bee broke which line of defense in the patient?

1- First

2- Second

3- Third

4- Fourth

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Homework Answers

Answer #1

Q 1.

Answer is (4) . Phagocytosis

Explanation:- the second line of defence is non specific that destroys invaders in a generalized way without targeting specific individual organism.

Those are:-

Phagocytosis- there occurs ingestion and destruction of all microorganisms that pass into the body tissues.

- phagocytosis is carried out by phagocytes.

-Phagocytes are macrophages which are derived from monocytes . Macrophages leave the bloodstream and enter the body tissues to petrol for pathogens.

Q2.

Answer is (1) First line of defence

Explanation:-

- the stinger of the bee invade the physical barrier of first line defence.

- the physical barrier is skin. Skin is thick layer serve as a barrier for infection and considered as a first line of defence.

Hope you got your answer. Thanks

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