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
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Related Questions
Correct Answer is D
Explanation
a. Carrying stimulus to the spinal cord and the brain from all other parts of the body: This is the function of afferent neurons, not efferent neurons.
b. Conducting impulses from sensory neurons to motor neurons: This describes interneurons, which relay signals between sensory and motor neurons.
c. Regulating neuron function: This is a vague description and doesn't specifically relate to the primary role of efferent neurons.
d. Carrying stimulus away from the brain and spinal cord: This correctly describes efferent neurons, which carry motor commands from the central nervous system to muscles and glands.
Correct Answer is B
Explanation
a. Splenic flexure: This is the bend between the transverse and descending colon on the left side, also known as the left colic flexure.
b. Right colic flexure: The hepatic flexure, also known as the right colic flexure, is the bend between the ascending and transverse colon near the liver.
c. Pontine flexure: This refers to a bend in the developing brainstem, not the colon.
d. Left colic flexure: This is another name for the splenic flexure, not the hepatic flexure.
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