The figure illustrates the sacrum. What structure does "E" represent?
A. coccyx
B. sacral hiatus
C. superior articular facet
D. median sacral crest
E. posterior sacral foramina
A
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During asthma, the airway narrows due to smooth muscle constriction. How can the body respond to maintain ventilation of the alveoli? Why, sometimes, do people die from severe asthma?
What will be an ideal response?
Melanocyte cytoplasmic processes transfer pigment granules into stratum basal keratinocytes; these pigment granules shield the nuclear DNA from UV radiation.
Answer the following statement true (T) or false (F)
The male urethra is longer than the female one.
Answer the following statement true (T) or false (F)
Lymph differs from plasma in that
A) lymph is colorless and plasma is red. B) plasma has more protein than lymph. C) lymph is thin and plasma is viscous. D) lymph has more protein than plasma.