A clot that breaks loose and travels in the blood flow is called a(n) ________.
Fill in the blank(s) with the appropriate word(s).
emboli
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Which of the following is a thin serous membrane that covers the surface of the lung?
A. Parietal pulmonary membrane B. Visceral peritoneum C. Parietal pleura D. Visceral pleura E. Visceral pneumothorax
Which of the following is gray matter?
A) nerves B) tracts C) neural cortex D) ganglia E) columns
Fibrous extensions from the capsule of the lymph nodes that extend part of the way into the interior are the ________.
Fill in the blank(s) with the appropriate word(s).
The muscles of the back contract to straighten so that you sit at a more erect posture and subsequently the muscles are suddenly stretched as you nod off. Which of the following best represents the sequence of events when you start to nod off?
(1) muscles of the back are stretched (2) the muscle spindle is stretched (3) action potentials in sensory neurons of the muscle spindles increase (4) action potentials in alpha motor neurons of skeletal muscle fibers increase (5) skeletal muscle of the back contract A. 1, 2, 3, 4, 5 B. 1, 5, 2, 3, 4 C. 1, 5, 3, 2, 4 D. 5, 2, 3, 4, 1 E. 4, 5, 3, 2, 1