Which sympathetic pathway involves only a preganglionic axon going to the effector organ?
A. Splanchnic nerve pathway
B. Adrenal medulla pathway
C. Postganglionic sympathetic nerve pathway
D. Spinal nerve pathway
E. None of the choices is correct.
B
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An increased secretion of watery saliva will result when the
A. basal nuclei of the brainstem activate sympathetic pathways to salivary glands. B. basal nuclei of the cerebrum activate somatic pathways to salivary glands. C. salivary nuclei of the brainstem activate parasympathetic pathways to salivary glands. D. salivary nuclei of the cerebrum activate sympathetic pathways to salivary glands. E. glossopharyngeal nuclei of the pons activate somatic and sympathetic pathways to the salivary glands.
The ________________________________________ is the tube-like structure that connects the kidney to the bladder
Fill in the blank(s) with correct word
All of the following are structures of the cardiovascular system, except
A) the heart. B) arteries. C) the spleen. D) veins. E) capillaries.
Which type of congenital heart defect most commonly affects children born with Down syndrome (trisomy 21)?
a. tetralogy of Fallot b. atrioventricular septal defect c. ventricular septal defect d. transposition of great vessels