T cells and B cells are
A. neutrophils.
B. lymphocytes.
C. macrophages.
D. antigens.
Answer: B
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The blood-brain barrier is reduced or missing from three locations in the brain. Which is not one of these locations?
A. Hypothalamus B. Pineal gland C. Cerebrum D. Choroid plexus
Name the five types of white blood cells. Which type develops into macrophages? Which white blood cells are collectively known as phagocytes and why?
What will be an ideal response?
Which of the following is NOT important in helping the flow of lymph through lymphatic vessels?
A. respiratory movements B. skeletal muscle movements and pulsations of nearby arteries C. valves in some of the lymphatic vessels D. contraction of smooth muscle in the lymphatic vessel walls E. blood pressure in the capillaries
Which of the following respiratory membrane layers is closest to air in the alveolus?
A. alveolar epithelium B. alveolar basement membrane C. capillary basement membrane D. capillary endothelium E. alveolar fluid (with surfactant)