The figure illustrates the joints and bones of the rib cage. What does "E" represent?
A. costochondral joint
B. sternum
C. manubrium
D. sternal symphyses
E. sternocostal synchrondrosis
B
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Which anti-microbial substances reduce viral replication (in uninfected cells)?
a) Transferrins b) Perforins c) Complement proteins d) Defensins e) Interferons
In an adult long bone, the ________ cavity is the space filled with yellow bone marrow.
Fill in the blank(s) with the appropriate word(s).
Cherise is lactose-intolerant because she produces insufficient amounts of an enzyme called:
A) galactose. B) sucrase. C) maltase. D) lactase.
Some ________ neurons are specialized to detect stimuli, whereas ________ neurons send signals to the effectors of the nervous system.
A. efferent; inter- B. afferent; inter- C. afferent; efferent D. efferent; afferent E. motor; sensory