Which ventricle is continuous with the central canal of the spinal cord?
A) first
B) second
C) third
D) fourth
D
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What is being shown by the axis labeled E?
a) time b) tetanus c) force of contraction d) twitch factor e) wave summation
The optimal pH for pepsin activity is _______.
A) 9 B) 7 C) 2 D) The activity was the same at a pH of 2, 7 and 9.
An obstruction in the afferent arteriole would reduce the flow of blood into the ________.
A. efferent arteriole B. renal artery C. arcuate artery D. macula densa E. glomerulus
All of the following characteristics of the sarcoplasmic reticulum in cardiac muscle cells are true except ________________
A. it is more irregular than that in skeletal muscle cells. B. it is in close association wit the transverse tubules. C. it is involved in the storage and release of calcium D. it has enlarged terminal cisternae like skeletal muscle cells.