A __________ sheath surrounds and insulates some axons and increases their conduction speed.
Fill in the blank(s) with the appropriate word(s).
myelin
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The largest amount of air that can be breathed in and out in one breath is called:
a. vital capacity b. residual volume c. tidal volume d. expiratory reserve volume
In the classification of joints, which of the following statements is true?
A) Immovable joints are called amphiarthroses. B) All synovial joints are freely movable. C) Synarthrotic joints are slightly movable. D) In cartilaginous joints, a joint cavity is present.
An unknown molecule was detected in a tissue sample. The molecule is composed of carbon, hydrogen, and oxygen; appears to be a branching polymer; and is hydrophilic. This molecule is most likely a ________.
A. nucleic acid B. protein C. carbohydrate D. lipid
A tendon sheath is a modification of which structure?
A. A tendon B. A ligament C. A bursa D. A meniscus E. A joint capsule