Which of the Following Is Not True of the Structure

question 11

Multiple Choice

Which of the following is not true of the structure of a lymph node?

• A)The hilum is the entry/exit point for blood vessels and (a)certain lymphatic vessel(s).
• B)Trabeculae are inward extensions of the capsule, that provide physical support.
• C)Lymphatic nodules are all located in the cortex of the node.
• D)A lymph node typically has one afferent lymphatic vessel and several efferent lymphatic vessels.
• E)All of these are true of the structure of a lymph node.

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Definitions:

Crustaceans

Members of a subphylum that includes lobsters, crabs, shrimp, barnacles, and their relatives.

Echinoderms

A phylum of marine animals characterized by radial symmetry, a calcareous skeleton, and a water vascular system; includes starfish, sea urchins, and sea cucumbers.

Parasitizes

Describes the action of living as a parasite in or on another organism, exploiting the host for sustenance without mutual benefit.

Biramous Appendages

Appendages with two jointed branches extending from their base. Compare with uniramous appendages.