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ATI LPN · Anatomy and Physiology · Immune System Quiz Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The lymphatic ducts that direct lymph into blood circulation are called the _____________ duct and the ____________ duct.

A. anterior lymphatic, abdominopelvic

B. left lymphatic, subclavian

C. right lymphatic, thoracic

D. subclavian, thoracic

Expert Explanatory Rationale

Correct Answer: right lymphatic, thoracic

Question 2 of 5

when spleen Contract, circulation is closed, while when spleen relax. Circulation open

A. open theory

B. open-closed theory

C. closed theory

D. none of above

Expert Explanatory Rationale

Correct Answer: open-closed theory

Question 3 of 5

Which of the statements below is incorrect?

A. Activated dendritic cells migrate from tissues to lymphatic vessels in order to reach the lymph nodes

B. Within lymph nodes T cells inspect antigens presented by dendritic cells

C. T cells that become activated exit the lymph node to start proliferating in blood

D. Activated T cells differentiate to become effector cells which can exit the lymph node

Expert Explanatory Rationale

Correct Answer: T cells that become activated exit the lymph node to start proliferating in blood

Question 4 of 5

the characteristic of blood types AB is

A. a general receptor

B. a general donor

C. a receptor and donor

D. neither donating nor receptor

Expert Explanatory Rationale

Correct Answer: a general receptor

Question 5 of 5

Macrophages express multiple types of receptors on their surface that stimulate phagocytosis of microbes, leading to pathogen internalization and destruction. Many of these receptors, such as Dectin-1, rely on direct recognition of a PAMP on the pathogen surface. However, some receptors that stimulate phagocytosis rely on soluble factors (not associated with the phagocyte membrane) to identify and mark the pathogen for uptake by the phagocyte. One such receptor is:

A. The mannose receptor

B. The class A scavenger receptor

C. The lipid receptor

D. Complement receptors bind soluble C3b

Expert Explanatory Rationale

Correct Answer: Complement receptors bind soluble C3b