ATI RN
PAL Histology Lymphatic System Lab Practical Question 1 Questions
Question 1 of 5
The specific type of acquired immunity that a fetus obtains from maternal antibodies that cross the placenta is called:
Correct Answer: B
Rationale: Maternal antibodies provide natural passive immunity; active (A, C) involves own response, artificial is via injection, and E is invalid.
Question 2 of 5
Following antigen presentation by a B cell to a T helper cell, cytokines are produced and the B cell:
Correct Answer: D
Rationale: B cell switches class and secretes antibody; doesn't kill T cell , rearrangement is earlier , or just secrete .
Question 3 of 5
What is the primary function of the lymphatic system?
Correct Answer: B
Rationale: The lymphatic system returns excess fluid from tissues to the bloodstream; oxygen transport is by blood, fat digestion involves the digestive system, and RBC production occurs in bone marrow.
Question 4 of 5
The white pulp of the spleen is primarily composed of:
Correct Answer: B
Rationale: White pulp contains lymphocytes; red pulp has RBCs , macrophages , and some platelets .
Question 5 of 5
Which structure collects lymph from the legs?
Correct Answer: C
Rationale: Cisterna chyli collects leg lymph before the thoracic duct ; right duct is upper body, nodes filter.