Multiple Choice
The sinuses within lymph nodes
A) are separated from the bloodstream by a blood-node barrier.
B) consist of star-shaped epithelial cells that secrete immune-boosting hormones.
C) contain macrophages living along a reticular fiber network.
D) surround clumps of lymphoid tissue called white pulp.
Correct Answer:

Verified
Correct Answer:
Verified
Q105: In humans, B lymphocytes originate in<br>A) the
Q106: Lymphocytes attack antigens mostly in lymphoid organs
Q107: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7561/.jpg" alt=" Use this illustration
Q108: Which of the following lymphoid organs does
Q109: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7561/.jpg" alt=" Use the diagram
Q111: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7561/.jpg" alt=" Use this illustration
Q112: Lymph capillaries differ from blood capillaries in
Q113: Describe the process of T cell activation
Q114: By secreting hormones, the thymus causes which
Q115: Lymphatic capillaries are located near blood capillaries