Which of the following leukocytes become macrophages and phagocytize dead and dying tissue, microorganisms, and any other foreign matter or debris?
A. Lymphocytes
B. Eosinophils
C. Monocytes
D. Basophils
Answer: C
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The functional units of kidneys where blood is filtered and urine produced are called
A) pyramids. B) nephrons. C) calyces. D) lobules. E) lobes.
Answer the following statements true (T) or false (F)
1. Pulmonary arteries carry oxygen-deprived blood. 2. The pulmonary trunk carries blood to the body cells. 3. The bicuspid valve is the exit of the right ventricle. 4. The pulmonary veins bring blood from the lungs back to the heart. 5. The pacemaker of the heart is the AV node.
Bundles of axons within a nerve are known as:
A) the perineurium. B) dendrites. C) the endoneurium. D) fascicles.
We can localize sensations that originate in different areas of the body because
A) sensory neurons carry only one modality. B) sensory neurons from specific body regions project to specific cortical regions. C) incoming sensory information is first processed by the thalamus. D) different types of sensory receptors produce action potentials of different sizes and shapes. E) of the many types of tactile receptors.