Which of the following is the main endocrine homeostasis mechanism?
Neutral feedback
Stimulating feedback
Negative feedback
Positive feedback
The Correct Answer is C
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
a: Storage of fat - While the skin does contain adipose tissue (fat), its primary function is not fat storage.
b. Body temperature regulation-The skin plays a crucial role in regulating body temperature through processes such as sweating to cool the body down and constriction of blood vessels to conserve heat.
c: Energy production - The skin is not directly involved in energy production; this is primarily carried out by organs like the liver and muscles.
d: Gas exchange - Gas exchange occurs primarily in the lungs, not the skin.
Correct Answer is B
Explanation
a. Aortic: This valve has three cusps and is open during systole to allow blood flow from the left ventricle into the aorta.
b. Mitral: This valve, also known as the bicuspid valve, has two leaflets and closes during systole to prevent backflow of blood into the left atrium.
c. Pulmonic: This valve has three cusps and is open during systole to allow blood flow from the right ventricle into the pulmonary artery.
d. Tricuspid: This valve has three leaflets and closes during systole to prevent backflow of blood into the right atrium.
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