Which of these systems plays a role in defending the body from harm? A. Endocrine system B. Circulatory system C. Muscular system D. All of these

Respuesta :

Answer:

The correct answer is B circulatory system

Explanation:

Blood is an important element of circulatory system.Blood composed of blood plasma and blood cells.

           There are 3 types of blood cells

Red Blood Cells

White Blood Cells

Platelets

White Blood cells play an important role to defend the body from harm.The are two 2 types of White Blood Cells

1  Granulocytes they are 3 types

A Neutrophils They helps in the destruction of foreign antigen by Phagocytosis .

B Eosinophils   They play an important role in generating immune response in our body along with the help of IgE antibody.

C Basophils They contain various Bioactive compounds such as histamine, heparine. Histamine are mainly released from the mast cell and along with the help of IgE they play an important role in allergic reactions.

2   Agranulocytes  They are of 2 types

A Monocytes  The act as antigen presenting cell .

B Lymphoctyes they are of 2 types

B lymphocyte cell   They regulate Humoral immune response.

T lymphocyte cell   They regulate cell mediated immune response.

Answer:

free points

Explanation: