Peyer's patches and the tonsils are part of the collection of small lymphoid tissues that protect the upper respiratory and digestive tracts from infection and are referred to as ________
A) lymph nodes
B) MALT or mucosa-associated lymphatic tissue
C) germinal centers
D) lymphatics
B
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Following hemorrhage, reflexes are triggered that attempt to compensate for the blood loss. As a result of the blood loss and the reflex mechanisms, which of the following will be TRUE, compared to pre-hemorrhage values?
A. Both cardiac output and total peripheral resistance will be decreased. B. Hematocrit will be increased. C. Cardiac output will be decreased and total peripheral resistance will be increased. D. Both cardiac output and total peripheral resistance will be increased. E. Cardiac output will be increased and total peripheral resistance will be decreased.
Which of the following is not a symptom of inflammation?
A. Redness B. Numbness C. Heat D. Swelling
The vagus nerve carries parasympathetic impulses to the
A. salivary glands. B. lacrimal glands. C. smooth muscle of the eyes. D. thoracic and abdominal viscera. E. thyroid gland.
The cells of the lung that produce the substance that lowers surface tension are ________
Fill in the blank(s) with the appropriate word(s).