Cholesterol is essential for the synthesis of steroid hormones.
True
False
The Correct Answer is A
Cholesterol is a critical component in the body, serving as the precursor for all steroid hormones, including cortisol, aldosterone, estrogen, progesterone, and testosterone. Without cholesterol, the body would be unable to produce these hormones, which regulate metabolism, immune function, electrolyte balance, and reproductive processes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Mucous membranes line the respiratory, gastrointestinal, and genitourinary tracts, serving as a primary barrier against pathogens. The mucus traps microbes and particulate matter, while enzymes like lysozyme break down bacterial cell walls. Together, these defenses reduce the likelihood of infection by preventing many pathogens from entering the body.
Correct Answer is A
Explanation
The image shows a single cycle of an electrocardiogram (ECG or EKG), which represents the electrical activity of the heart.
A (P wave):Represents atrial depolarization, which triggers the contraction of the atria.
B, C, D (QRS complex):Represents ventricular depolarization, which triggers the main contraction of the ventricles.
E (T wave):Represents ventricular repolarization, which signifies the electrical recovery and relaxation of the ventricles.
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