The larynx is supported by nine pieces of cartilage. Which cartilages occur in pairs?
A. Corniculate and cricoid
B. Cricoid, corniculate, and arytenoid
C. Corniculate, cuneiform, and arytenoid
D. Thyroid and corniculate
E. Arytenoid and epiglottis
Answer: C
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Answer the following statements true (T) or false (F)
1. The sensor in a feedback loop compares the actual condition to the “normal” condition the body tries to maintain. 2. The effector in a negative feedback loop does something to move the regulated condition back to “normal.” 3. The sensor in a negative feedback loop detects a change in the regulated condition. 4. In the negative feedback loop, the effector is the link between the sensor and the control center. 5. The formation of a blood clot is an example of a negative feedback loop.
When you travel on a moving walkway or an elevator, the linear acceleration of your body is sensed by the
A. utricle and saccule. B. ossicles. C. cochlea. D. semicircular canals.
With what you have learned about pulmonary ventilation, how would you design an artificial respirator to keep patients with paralyzed respiratory muscles alive? How does artificial respiration by a machine compare to mouth-to-mouth respiration?
What will be an ideal response?
Nutritional anemia is caused by an inability to absorb enough ingested vitamin B12 from the digestive tract
a. True b. False Indicate whether the statement is true or false