Which of the following structures is part of the glottis?
Cricoid cartilage
True vocal cords
"Adam's apple"
Thyroid cartilage
The Correct Answer is B
a. Cricoid cartilage: This is a ring-shaped cartilage located below the thyroid cartilage, but it is not part of the glottis.
b. True vocal cords: The glottis consists of the true vocal cords (vocal folds) and the opening between them. The true vocal cords are essential for sound production.
c. "Adam's apple": This term refers to the prominent part of the thyroid cartilage, particularly in males. It is not part of the glottis.
d. Thyroid cartilage: This is the largest cartilage of the larynx and forms the front wall, but it is not directly part of the glottis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
a. Neutral feedback: This term is not typically used in the context of endocrine regulation.
b. Stimulating feedback: This is not a standard term in endocrine homeostasis mechanisms.
c. Negative feedback: Correct. Negative feedback is the primary mechanism by which endocrine systems maintain homeostasis. It involves reducing the output or activity of any organ or system back to its normal range of functioning.
d. Positive feedback: Positive feedback amplifies changes rather than stabilizing them, and is less common in maintaining homeostasis
Correct Answer is A
Explanation
a. QRS wave: The ECG (electrocardiogram) measures the electrical activity of the heart. The QRS complex represents ventricular depolarization, the spread of electrical excitation through the ventricles causing them to contract.
b. P wave: The P wave represents atrial depolarization, the electrical impulse moving through the atria.
c. T wave: The T wave represents ventricular repolarization, the ventricles relaxing after contraction.
d. U wave: The U wave is a small wave of uncertain origin, not related to ventricular depolarization.
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