What ion movement changes the membrane potential in a contractile cell from negative to positive during the rapid depolarization phase?
A) influx of sodium ions B) outflow of potassium ions
C) influx of calcium ions D) outflow of calcium ions
Answer: A
Anatomy & Physiology
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A person has alkalosis if the blood pH
A. is below 7.0. B. drops below 7.3. C. rises above 7.5. D. is above 7.0.
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What is used to determine the gender of a bird?
a. feather sample c. DNA test b. blood sample d. all of the above
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Solubility refers to the ability of one substance to ________ in another.
A. dissolve B. react C. precipitate D. conduct E. None of the choices are correct.
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In females, the genital tubercle forms the
A. labia minora. B. uterus. C. clitoris. D. labia majora. E. vagina.
Anatomy & Physiology