Lymphatic and Immune System

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Questions and Answers

Which lymphatic structure is responsible for filtering the blood and removing damaged blood cells?

Thymus
Spleen (correct)
Lymph nodes
Lymphatic vessels

What is the primary role of the thymus in the lymphatic system?

Maturation of T cells (correct)
Filtering lymph fluid
Storing B cells
Producing red blood cells

Which of the following is NOT considered a function of the lymphatic system?

Transporting dietary lipids
Producing hormones (correct)
Returning excess fluid to the bloodstream
Defending against pathogens

What is the primary function of lymph nodes?

Filtering lymph and trapping pathogens (C) Signup and view all the answers

Which of the following is an example of a first line of defense in the innate immune system?

Skin and mucous membranes (C) Signup and view all the answers

Which of the following represents the second line of defense in the innate immune system?

Inflammation (D) Signup and view all the answers

What is the key characteristic of the third line of defense (adaptive immunity) that differentiates it from the innate immune system?

Memory and specificity (D) Signup and view all the answers

Which type of immunity is mediated by B cells?

Humoral immunity (A) Signup and view all the answers

What is the main function of T cells in the adaptive immune response?

Directly attacking infected cells (C) Signup and view all the answers

Which process involves presenting fragments of pathogens to T cells to initiate an immune response?

Antigen presentation (D) Signup and view all the answers

What is the role of memory cells in the immune system?

Quickly responding to subsequent encounters with the same antigen (A) Signup and view all the answers

During which immune response are antibodies produced more rapidly and in greater quantities?

Secondary immune response (D) Signup and view all the answers

Which class of antibodies is typically the first to be produced during a primary immune response?

IgM (A) Signup and view all the answers

Which antibody class is primarily involved in allergic reactions?

IgE (D) Signup and view all the answers

What type of immunity is acquired through vaccination?

Artificially acquired active immunity (D) Signup and view all the answers

What type of immunity is transferred from a mother to her baby through breast milk?

Naturally acquired passive immunity (D) Signup and view all the answers

Receiving antibodies through an injection, such as antivenom after a snake bite, is an example of which type of immunity?

Artificially acquired passive immunity (B) Signup and view all the answers

What is the key difference between active and passive immunity?

Active immunity involves the individual's own immune system, while passive immunity involves receiving pre-formed antibodies. (D) Signup and view all the answers

Someone recovers from the chickenpox virus and is now immune to it. What kind of immunity is this?

Naturally acquired active immunity (C) Signup and view all the answers

Following activation, what is the primary role of a B cell?

Production and secretion of antibodies (B) Signup and view all the answers

Flashcards

Lymph Nodes

Small, bean-shaped structures that filter substances in the body and help fight infection.

Lymphatic Vessels

Network of vessels that transport lymph fluid, containing white blood cells, throughout the body.

Spleen

An abdominal organ that filters blood, stores white blood cells, and helps fight infections.

Thymus

Gland located in the chest that is crucial for the development of T cells and the adaptive immune system.