The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on.
the location of the tissue or organ with respect to the circulatory path.
the membrane potential of the cells of the target organ.
the presence of the appropriate receptors on the cells of the target tissue or organ.
Nothing, all hormones of the human body are able to stimulate any and all cell types because hormones are powerful and nonspecific.
The Correct Answer is C
a) The location of the tissue or organ with respect to the circulatory path: Hormones are carried through the entire bloodstream, so all tissues are exposed. Proximity doesn’t determine responsiveness.
b) The membrane potential of the cells of the target organ: Membrane potential may affect nerve impulse conduction, but not hormone specificity.
c) the presence of the appropriate receptors on the cells of the target tissue or organ: Hormones act only on target cells that express specific receptors for them. No receptor = no response.
d) All hormones stimulate any and all cell types because hormones are powerful and nonspecific: Hormones are highly specific and only act on cells with matching receptors.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
a) calcium
Calcium may be a type of second messenger, but it’s not the overarching mechanism.
b) deactivating ions
This term is vague and not related to hormone signaling.
c) nucleotides
While cAMP (a nucleotide) is a second messenger, not all second messengers are nucleotides, and the option is too narrow.
d) second messengers
Amino acid-based hormones bind to surface receptors and use second messenger systems (like cAMP, IP₃, DAG) to transmit signals inside the cell.
Correct Answer is D
Explanation
a) TRH → production of T3 and T4 → TSH: Incorrect order; TSH stimulates T3/T4 production, not the other way around.
b) TSH → production of T3 and T4 → TRH: Incorrect; this reverses the hypothalamic-pituitary-thyroid (HPT) axis.
c) TSH → TRH → production of T3 and T4: Incorrect sequence; the hypothalamus releases TRH before the pituitary releases TSH.
d) thyrotropin-releasing hormone (TRH) → thyroid-stimulating hormone (TSH) → production of T3 and T4: This reflects the HPT axis: TRH is released by the hypothalamus (first tier). TSH is secreted by the anterior pituitary (second tier). T3 and T4 are produced by the thyroid gland (third tier)
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