The figure illustrates the sacrum. What structure does "D" represent?
A. Posterior sacral foramina
B. Coccyx
C. Median sacral crest
D. Superior articular facet
E. Sacral hiatus
Answer: E
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The muscle layer of the heart wall is the ________.
Fill in the blank(s) with the appropriate word(s).
Motor patterns that are learned, like walking, are called ________ reflexes.
Fill in the blank(s) with the appropriate word(s).
By which process does a glucose molecule move through a cell membrane protein carrier from a region of greater concentration to one of lower concentration?
A) simple diffusion B) facilitated diffusion C) active transport D) filtration
Edema can occur when there is
A. an increase in the amount of plasma proteins. B. a decrease in capillary permeability to proteins. C. a decrease in blood pressure. D. a blockage of the lymphatics. E. an increase in blood colloid osmotic pressure.