On axial CT images of the neck, the trachea appears
A. hyperlucent.
B. blunted posteriorly.
C. opaque.
D. a and b
E. a and b
Answer: D
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____________________ matter consists predominantly of densely packaged cell bodies and dendrites, whereas ____________________ matter consists of bundles of myelinated nerve fibers
Fill in the blank(s) with correct word
Over time, diffusion results in the even distribution of a substance throughout an area.
Answer the following statement true (T) or false (F)
Protein channels that are situated between cells and create small pores for the passage of small substances are known as:
A) occluding junctions. B) gap junctions. C) tight junctions. D) desmosomes.
When stretch receptors in the cervix are stimulated by the continually increasing pressure of the fetus, afferent neurons send impulses to the maternal hypothalamus resulting in
A. increased estrogen production. B. increased oxytocin production. C. increased fetal CRH production. D. increased growth in the size of the placenta. E. decreased oxytocin production.