In general, arterioles have ________ layers of smooth muscle.
A. exactly six
B. fewer than six
C. more than six
D. no
Answer: B
Anatomy & Physiology
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The falling phase of the action potential is due primarily to
A) Na+ flow out of the cell only. B) K+ flow out of the cell only. C) Na+ flow out of the cell and K+ flow into the cell. D) Na+ flow in the cell only. E) K+ flow into the cell only.
Anatomy & Physiology
Which of the following individuals would lose heat faster in a cold room?
A) an adult man B) a newborn infant C) an adolescent male D) an adult woman E) a child
Anatomy & Physiology
Each of the depressions on the maxillae and mandible that holds a tooth is called a(n)
A. alveolus. B. foramen. C. sulcus. D. sinus. E. fossa.
Anatomy & Physiology
Which of the following is not a mechanical barrier against microorganisms?
A) Urine B) Tears C) Diarrhea D) Saliva
Anatomy & Physiology