Ions with a + charge are called
A) cations.
B) anions.
C) radicals.
D) positrons.
E) isotopes.
Answer: A
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The rate of conduction of a nerve impulse depends upon
A) the number of cell dendrites. B) properties of the soma of the neuron. C) the presence or absence of a myelin sheath. D) the type of neurotransmitter present. E) All of the answers are correct.
What cells within the alveoli are capable of phagocytosis and can therefore engulf particulate matter that might reach the alveoli?
a. alveolar macrophage b. alveolar septal cells c. alveolar NK cells d. alveolar plasma cells
Which small paired cartilage is seated immediately superior to the arytenoids?
A. hyoid B. cuneiform C. corniculate D. thyroid
The first and second heart sounds are derived from the opening of the heart valves.
Answer the following statement true (T) or false (F)