For each lobe of a lung there is one
A. secondary bronchus.
B. tertiary bronchus.
C. bronchiole.
D. primary bronchus.
Answer: A
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The hormone calcitonin functions to
A) stimulate osteoclast activity. B) decrease the rate of calcium excretion. C) decrease the rate of calcium absorption. D) decrease the level of calcium ion in the blood. E) stimulate osteoblasts and inhibit osteoclasts.
Sympathetic fibers leave the spinal cord in the ________.
A. lumbar and sacral regions B. cranial and thoracic regions C. cranial and sacral regions D. thoracic and lumbar regions E. cervical and sacral regions
Energy transformations result in ________ in entropy.
an increase a decrease no change
At rest, more blood flows to the skin and abdominal organs than to the lungs
Indicate whether the statement is true or false.