The destruction or inactivation of pathogens, the main activity of the lymphoid system, constitutes the ________ of the body.

Fill in the blank(s) with the appropriate word(s).


immune response

Anatomy & Physiology

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Which fetal circulatory structure shunts blood from the pulmonary trunk to the aorta?

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The layer of the meninges in direct contact with the spinal cord is the

A) dura mater. B) subarachnoid space. C) arachnoid mater. D) pia mater. E) choroid plexus.

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Intramembranous ossification begins with differentiation of ________ cells

A) osteoclast B) osteolytic C) mesenchymal D) osteoblast E) osteocyte

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Which of the following is not secreted by the adrenal cortex?

A. Estrogens B. Androgens C. Aldosterone D. Cortisol E. Epinephrine

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