All of the following are true of swallowing (deglutition) except one. Select the statement that is NOT true of swallowing.
The voluntary phase of swallowing takes place within the mouth.
The epiglottis assists in propelling food into the trachea.
The involuntary portion of swallowing takes place in the pharynx.
The mouth, pharynx and esophagus all take part in swallowing.
The Correct Answer is B
A. The voluntary phase of swallowing takes place within the mouth: The oral phase is under voluntary control and involves tongue movement to push the bolus to the oropharynx.
B. The epiglottis assists in propelling food into the trachea: This is incorrect. The epiglottis prevents food from entering the trachea by covering the glottis during swallowing; it does not propel food.
C. The involuntary portion of swallowing takes place in the pharynx: After the oral phase, swallowing becomes involuntary, involving reflexive contractions of pharyngeal muscles.
D. The mouth, pharynx and esophagus all take part in swallowing: All three structures are involved in the three phases of deglutition: oral, pharyngeal, and esophageal.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Store fat-soluble vitamins: Hepatocytes store vitamins A, D, E, and K.
B. Detoxify toxic chemicals: Hepatocytes metabolize and detoxify substances like drugs and alcohol.
C. Process nutrients: They metabolize carbohydrates, lipids, and proteins, modifying absorbed nutrients.
D. Produce digestive enzymes: Hepatocytes do not produce digestive enzymes; that is the role of the pancreas and other gastrointestinal organs.
Correct Answer is A
Explanation
True: When the ECF becomes hypertonic due to water loss (e.g., dehydration), water moves out of the cells into the ECF by osmosis, causing cellular shrinkage.
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.