The density of receptors in a receptive field is usually greatest in the periphery of the field.
Answer the following statement true (T) or false (F)
False
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Substance X is a mostly polar molecule and Substance Y is a mostly non-polar molecule of a similar size. Which will diffuse from the extracellular fluid to the intracellular fluid faster if they are in equal concentrations outside and inside the cell?
A. Substance X will diffuse faster. B. Substance X and Substance Y will diffuse at the same rate, as they are of equal size and concentration. C. Substance Y will diffuse faster.
An impact resulting in the total loss of velocity would be called a perfectly ___________________ impact. ________________________________________
Fill in the blank(s) with the appropriate word(s).
The small, phagocytic cells in the CNS that fight infection are called ________.
Fill in the blank(s) with the appropriate word(s).
The pharyngeal muscles that push the food bolus toward the esophagus are the __________.
a. palatopharyngeus muscles b. palatus muscles c. pharyngeal constrictor muscles d. stylopharyngeus muscles