Les Cellules Immunitaire 🔅

Question 1

Quelle est la fonction des cellules immunitaires ?

Answer 1

Les cellules immunitaires sont chargées d’identifier et d’éliminer les agents pathogènes et les substances étrangères dans l’organisme.

Question 2

Nommez les deux principaux types de cellules immunitaires .

Answer 2

Les deux principaux types de cellules immunitaires sont les lymphocytes et les cellules myéloïdes.

Question 3

Vrai ou faux : Les cellules T sont un type de lymphocyte.

Answer 3

Vrai.

Question 4

Remplissez l’espace vide : Les cellules B sont responsables de la production de ______.

Answer 4

Les Anticorps.

Question 5

Quel est le rôle des macrophages dans le système immunitaire ?

Answer 5

Les macrophages engloutissent et digèrent les agents pathogènes et les cellules mortes.

Question 6

Quel type de cellule immunitaire est principalement impliqué dans la réponse immunitaire adaptative ?

Answer 6

Les lymphocytes, y compris les cellules T et les cellules B, sont principalement impliqués dans la réponse immunitaire adaptative.

Question 7

Quelle est la fonction des cellules dendritiques ?

Answer 7

Les cellules dendritiques présentent des antigènes aux cellules T pour déclencher une réponse immunitaire.

Question 8

Citez un type de cellule myéloïde.

Answer 8

Un type de cellule myéloïde est le neutrophile.

Question 9

Vrai ou faux : Les cellules tueuses naturelles (NK) font partie du système immunitaire inné.

Answer 9

Vrai.

Question 10

What is the primary function of neutrophils?

Answer 10

Neutrophils are primarily responsible for the rapid response to infection, particularly bacterial infections.

Question 11

Describe the role of T helper cells.

Answer 11

T helper cells assist other immune cells by releasing cytokines.

Question 12

Fill in the blank: Cytotoxic T cells are responsible for killing ______ infected cells.

Answer 12

virus.

Question 13

What is the importance of memory cells?

Answer 13

Memory cells provide long-term immunity by remembering past infections.

Question 14

True or False: Immune cells can communicate with each other through cytokines.

Answer 14

True.

Question 15

What is the role of regulatory T cells?

Answer 15

Regulatory T cells help maintain immune tolerance and prevent autoimmune responses.

Question 16

Name a key feature of the innate immune response.

Answer 16

The innate immune response is non-specific and immediate.

Question 17

What do antigen-presenting cells do?

Answer 17

Antigen-presenting cells display antigens to T cells to activate them.

Question 18

Fill in the blank: The immune system can distinguish between ______ and self-cells.

Answer 18

non-self.

Question 19

What is the role of eosinophils?

Answer 19

Eosinophils are primarily involved in combating parasitic infections and allergic reactions.

Question 20

True or False: All immune cells originate from stem cells in the bone marrow.

Answer 20

True.

Question 21

What type of immune cell is primarily involved in allergic reactions?

Answer 21

Mast cells are primarily involved in allergic reactions.

Question 22

Fill in the blank: The process of phagocytosis is performed by ______ cells.

Answer 22

phagocytic.

Question 23

What is the function of the complement system?

Answer 23

The complement system enhances the ability of antibodies and phagocytes to clear pathogens.

Question 24

Name one cytokine released by immune cells.

Answer 24

Interleukin-2 (IL-2) is an example of a cytokine.

Question 25

What is the difference between innate and adaptive immunity?

Answer 25

Innate immunity is immediate and non-specific, while adaptive immunity is delayed and highly specific.

Question 26

True or False: Immune cells can only be found in the blood.

Answer 26

False.