Which of the following do(es) not develop from the embryonic neural crest?
A. Ciliary, pterygopalatine, and otic ganglia
B. Preganglionic neurons of the sympathetic and parasympathetic divisions
C. Sympathetic chain ganglia
D. Terminal ganglia of the parasympathetic system
E. The adrenal medulla
B. Preganglionic neurons of the sympathetic and parasympathetic divisions
You might also like to view...
A fertilized egg is called __________.
Fill in the blank(s) with the appropriate word(s).
Select all that occur during the plateau phase of an action potential on a cardiac muscle cell.A) Calcium is entering the cell.B) Potassium is exiting the cell.C) Sodium is entering the cell.D) Calcium is exiting the cell.
What will be an ideal response?
The exocrine portion of the pancreas is composed of which cells?
A. Acinar B. Alpha C. Beta D. Islet
The AV nodal delay
a. ensures that the atria contract and empty their contents into the ventricles prior to ventricular systole. b. ensures that the ventricles contract prior to atrial systole. c. ensures that tetanic contraction of cardiac muscle is impossible. d. is shortened by parasympathetic stimulation. e. more than one of the above is correct.