Which of the following is a role of lymph nodes?
A. They return lymph to circulation.
B. They filter lymph.
C. They produce lymph.
D. They produce red blood cells.
Answer: B. They filter lymph.
Lymph nodes are rich with macrophages, B cells, and T cells; therefore, the lymph nodes are primed for activating the immune system. Structurally, lymph nodes have a capsule and medullary chords and sinuses that serve to filter lymph fluid.
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At the grocery store a cute, little curly-haired child is standing behind you in line. You turn around for a moment and she sticks her tongue out at you. Which tongue muscle did she use?
A) orbicularis oris B) stylohyoid C) genioglossus D) hyoglossus
Match the characteristic with the correct division of the nervous system.All axons are myelinated
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Which part of a synovial joint may be reinforced by ligaments and tendons?
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