Which part of the larynx produces sounds when air passes by?
A) thyroid cartilage
B) epiglottis
C) glottis
D) vocal folds (true vocal cords)
D
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During rapid depolarization of a ventricular contractile cell, the voltage-gated sodium channels close when the membrane potential reaches approximately
A) -90 mV. B) -30 mV. C) 0 mV. D) +30 mV. E) +90 mV.
In most states, veterinarians begin practicing immediately on graduation from a veterinary school
Indicate whether the statement is true or false
A foreign-body airway obstruction should be suspected in a child who presents with:
A) diffuse wheezing and nasal flaring. B) a productive cough and flushed skin. C) acute respiratory distress without fever. D) progressive respiratory distress and hoarseness.
Cardiac muscle has very little capacity for regeneration because it lacks ________.
A. sarcomeres B. somatic nerve fibers C. satellite cells D. dense bodies E. an endomysium