Which of the following is the best explanation for the C shape of the tracheal cartilages?
A) Large masses of food can pass through the esophagus during swallowing.
B) Large masses of air can pass through the trachea.
C) It facilitates turning of the head.
D) Cartilage can change shape during sympathetic activation.
E) Cartilage can constrict during an asthma attack.
Answer: A
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The azygos and hemiazygos are branches off the
A. external iliac veins. B. internal iliac veins. C. common iliac veins. D. None of the above
The release of FSH and LH from gonadotropes in the adenohypophysis is separately controlled by the same hypothalamic releasing hormone, GnRH. How is it possible to organize their secretion during the menstrual cycle?
Using the figure below, identify the labeled part.
1) Label A: ______________________________
2) Label B: ______________________________
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13) Label M: ______________________________
14) Label N: ______________________________
15) Label O: ______________________________
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18) Label R: ______________________________
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21) Label U: ______________________________
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A rat can be handled by holding the base of its tail
Indicate whether the statement is true or false