ADA NBDHE Dental Hygienist

Category - Scientific Basis for Dental Hygiene Practice

What parallels the venous blood vessels?
  1. Superficial lymph system
  2. Lymphatic system
  3. Autoimmune system
  4. Endocrine system
Explanation
Answer: B - The lymphatic system parallels the venous blood vessels. The function is to return filtered fluids to the bloodstream from various body tissues and to help maintain fluid balance. The presence of lymphocytes helps the immune system fight against disease.
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