Parasympathetic preganglionic fibers arise from the ____
a. cranial and cervical areas of the CNS
b. cranial and thoracic areas of the PNS
c. cranial and sacral areas of the CNS
d. thoracic and sacral areas of the PNS
e. thoracic and lumbar areas of the CNS
c
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Which accurately describes the handling of urea by the kidney?
A. All of the urea that reaches the kidney is excreted in the urine. B. About half of the urea that is filtered is excreted in the urine. C. None of the urea that reaches the kidney is excreted in the urine.
Eighty percent of the extracellular fluid is termed as interstitial fluid.
Answer the following statement true (T) or false (F)
In a myelinated axon, the greatest concentration of voltage-gated ion channels is in the
A. myelinated regions. B. neurofibril nodes.
Secretion of one hormone by the action of another hormone is control by ________ stimuli.
A. visceral B. hormonal C. humoral D. neural