10 Questions
Which cranial nerve is responsible for increasing the power of the lens and accommodation to near vision?
Cranial Nerve III
Which nerve contains 75% of all the parasympathetic nerve fibers in the body?
Cranial Nerve X
Which nerve is responsible for contraction of the wall of the bladder and relaxation of the internal urethral sphincter?
The Pelvic Nerve
Which nerve supplies the submaxillary and sublingual salivary glands, tongue, nasopharynx, and lacrimal glands?
Cranial Nerve VII
Which nerve is responsible for stimulation of bronchial mucus secretion and coronary vasoconstriction?
Cranial Nerve X
Where do the parasympathetic nerves arise from?
Nuclei of cranial nerves III, VII, IX, and X in the brainstem
Where do the parasympathetic nerves relay in terminal ganglia?
On or in the effector organ
What is the distribution of the parasympathetic nervous system?
It supplies the eye, salivary glands, thoracic and abdominal viscera only
What is the relationship between the functions of sympathetic and parasympathetic supply?
They have antagonistic functions within the same organ
Why are not all components of the parasympathetic system activated at one time?
Because they are never needed all at one time
This quiz covers the functions of the parasympathetic nervous system and the chemical transmission in the autonomic nervous system (ANS), including the types of receptors involved. It also delves into the origins of parasympathetic nerves from distinct parts of the central nervous system.
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