The term pollex refers to the
fingers
calf
great toe
thumb
The Correct Answer is D
A. Fingers: The general term for fingers is “digits” or “phalanges,” not pollex.
B. Calf: The calf corresponds to the sural region, unrelated to the pollex.
C. Great toe: The great toe is called the hallux, not the pollex.
D. Thumb: The term pollex specifically refers to the thumb, which is the first digit of the hand and is opposable, aiding in grasping and manipulation of objects.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Serving as the site for ribosomal RNA synthesis: Ribosomal RNA is synthesized in the nucleolus, not the centrioles.
B. Forming the basis of cilia and flagella: Centrioles are cylindrical structures that organize microtubules and serve as basal bodies for the formation of cilia and flagella, which are essential for cell movement and fluid transport.
C. Providing a whiplike beating motion to move substances along cell surfaces: The beating motion of cilia and flagella is powered by motor proteins and microtubule interactions, not directly by centrioles.
D. Producing ATP: ATP production occurs in mitochondria, not in centrioles, which are structural and organizing components of the cell.
Correct Answer is C
Explanation
A. Increase: An increase in hydrogen ion concentration does not cause the pH to rise; higher hydrogen ion levels correspond to greater acidity, which lowers the pH.
B. Hydrogen ions do not influence pH: Hydrogen ion concentration is the defining factor of pH. Changes in H⁺ directly affect the acidity or alkalinity of a solution.
C. Decrease: pH is inversely related to hydrogen ion concentration. As H⁺ increases, the solution becomes more acidic, causing the pH value to decrease.
D. Stay the same: pH remains constant only if hydrogen ion concentration is unchanged. An increase in H⁺ will alter the pH, so it will not remain the same.
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