The olfactory tract carries impulses associated with:
taste.
equilibrium.
smell.
pain.
The Correct Answer is C
A. taste: Taste impulses are carried by the facial, glossopharyngeal, and vagus nerves.
B. equilibrium: Balance/equilibrium is handled by the vestibulocochlear nerve (CN VIII).
C. smell: The olfactory nerve (CN I) and its tracts are dedicated exclusively to the sense of olfaction (smell).
D. pain: Pain is a general sense carried by various nerves, most notably the trigeminal nerve for the face.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. usually involves the endocrine or nervous system: This describes extrinsic control, where signals come from outside the specific organ.
B. operates at the cellular level: While it involves cells, intrinsic control is specifically defined by an organ or tissue regulating itself.
C. is sometimes called autoregulation: Intrinsic control refers to "built-in" mechanisms within an organ that allow it to adjust its function without outside help (e.g., blood flow regulation within the heart).
D. operates at the system or organism level: This describes extrinsic or systemic regulation.
Correct Answer is D
Explanation
A. Environment: Factors like pollution, climate, or radiation exposure are known risk factors for various diseases.
B. Stress: Chronic stress weakens the immune system and contributes to cardiovascular and mental health issues.
C. Lifestyle: Choices regarding diet, exercise, and tobacco use directly impact the risk of developing chronic illnesses.
D. All of the above: Since environment, stress, and lifestyle are all recognized as significant risk factors for disease, "All of the above" is correct.
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