The covering that surrounds the brain and spinal cord and protects them is referred to as the:

Match the following muscle functions to their definitions:

1. Agonist 2. Antagonist 3. Synergist 4. Neutralizer 5. Stabilizer a) Muscle that assists the prime mover. b) Muscle that prevents secondary actions of the prime mover. c) Muscle that initiates an action, the prime mover. d) Muscle that works independent of an action to prevent joint play. e) Muscle that opposes the prime mover.

Blockage of the pulmonary arterial circulation to a portion of the lung would cause which of the following?

a. Decrease in anatomical dead space b. Decrease in physiologic dead space c. Increase in alveolar dead space d. Increase in anatomical dead space