Which situation is most likely to result in drooling due to overproduction of saliva?
A person drinks a lot of water quickly
A person sees delicious food but cannot eat it
A person is experiencing dehydration
A person is giving a public speech
The Correct Answer is B
A. A person drinks a lot of water quickly: Rapid water ingestion does not typically stimulate excessive salivation beyond what is needed for swallowing. The salivary glands respond more to gustatory and olfactory stimuli than to volume. Hydration status remains the primary regulator here.
B. A person sees delicious food but cannot eat it: Visual and olfactory stimuli activate the parasympathetic nervous system via the salivary nuclei in the medulla. This causes a significant increase in watery, enzyme-rich saliva in anticipation of mastication. This is the classic cephalic response.
C. A person is experiencing dehydration: Dehydration triggers the sympathetic nervous system to reduce salivary secretion to conserve body water. This results in xerostomia, or a dry mouth, rather than overproduction. It is a protective mechanism against fluid loss.
D. A person is giving a public speech: Stress and anxiety associated with public speaking activate the sympathetic "fight or flight" response. This leads to the production of thick, mucus-rich saliva and a dry sensation. It does not cause excessive watery drooling.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
True:The stomach provides a distensible reservoir that allows for the ingestion of large meals. It slowly regulates the delivery of chyme into the duodenum via the pyloric sphincter. This allows for optimal downstream processing of nutrients.
Correct Answer is E
Explanation
A. Circumvallate muscles:These are not muscles but rather large, circular papillae located in a V-shaped row at the posterior aspect of the tongue. They contain numerous gustatory receptors but lack contractile properties for lingual movement. They do not influence the organ's shape.
B. Extrinsic muscles:These muscles, including the genioglossus and hyoglossus, originate from structures outside the tongue and insert into its substance. They are primarily responsible for the gross movement and positioning of the tongue, such as protrusion and retraction. They move the tongue as a whole.
C. Salivary muscles:There is no anatomical classification for muscles specifically designated as salivary muscles in the human body. Salivary secretion is controlled by the autonomic nervous system acting on glandular epithelial cells, not by specialized lingual muscles. This is not a valid anatomical term.
D. Submandibular muscles:This term typically refers to the muscles of the floor of the mouth, such as the mylohyoid, which support the tongue and hyoid bone. While they assist in the elevation of the tongue during swallowing, they do not reside within the tongue. They do not change its internal shape.
E. Intrinsic muscles:These muscle fibers are located entirely within the tongue and are not attached to bone. They are arranged in longitudinal, transverse, and vertical planes, allowing the tongue to curl, flatten, or thicken for complex articulation and deglutition. They are the primary effectors for changing tongue shape.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
