Which statement is incorrect?
a. Afferent fibers enter the spinal cord through the ventral root.
b. The dorsal and ventral roots at each level of the spinal cord join to form a spinal nerve.
c. The spinal cord is not as long as the vertebral column.
d. The ventral horn contains cell bodies of motor neurons that supply skeletal muscles.
e. The white matter of the spinal cord is organized into ascending and descending tracts.
A
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An upregulated cell has an increase in
A. the number of receptors available for binding. B. the concentration of ligands that bind to the receptors. C. the amount of DNA in the nucleus. D. the number of molecules the cell secretes.
What is the purpose of the vitreous humor?
What will be an ideal response?
When the partial pressure of carbon dioxide was decreased, what changes occurred in the urine?
A) H+ and bicarbonate ion both increased in the urine. B) H+ in the urine decreased and bicarbonate ion increased in the urine. C) H+ and bicarbonate ion both decreased in the urine. D) H+ in the urine increased and bicarbonate ion decreased in the urine
In _______, ions or molecules move in opposite directions
A. uniport B. ionport C. antiport D. symport E. comport