Enterogastrones include all of the following except:
a. secretin
b. CCK
c. GIP
d. gastrin
e. all of the above are enterogastrones
D
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The function of the nucleolus is to make
A. the subunits of ribosomes. B. the secretions that will be packaged by the Golgi apparatus. C. histones. D. DNA molecules. E. the deoxyribose sugar.
Exocytosis of secretory products from neuron terminals is triggered by the entry of ____ into the ____
a. K+; cytosol b. Na+; ECF c. Ca2+; cytosol d. ATP; plasma membrane e. A-; ECF
Which of the following is a monosynaptic reflex?
a. stretch reflex b. withdrawal reflex c. crossed-extensor reflexes d. All of the above e. Only c and d
The blood-brain barrier
A. permits passage of foreign substances from the blood to the neurons. B. prohibits the transport of amino acids and glucose to the neurons. C. prohibits the removal of waste materials from the neurons. D. protects neurons from toxic substances in the blood. E. does not prevent fluctuations in the composition of the blood from affecting the functions of the brain.