From which primary germ layer does the epithelial lining of the digestive system and the blood vessels develop?

A. Mesoderm
B. Endoderm
C. Ectoderm
D. None of these choices are correct for both systems.


Answer: D

Anatomy & Physiology

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The leukocyte that is very active during a bacterial infection is the

A. eosinophil. B. lymphocyte. C. basophil. D. neutrophil. E. monocyte.

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Steroid hormones

A) all of the above. B) combine with protein receptor molecules. C) cause messenger RNA synthesis. D) are soluble in lipids.

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When an antigen triggers an immune response, it usually activates ________ first.

A) mast cells B) plasma cells C) B cells D) T cells E) NK cells

Anatomy & Physiology

Damage to which hemisphere results in left neglect and pragmatic deficit?

What will be an ideal response?

Anatomy & Physiology