Compared to mouth-to-mouth ventilation, mouth-to-mask ventilation is more advantageous in that it:
A) can be used in conjunction with supplemental oxygen.
B) carries a lower risk of gastric distention and vomiting.
C) is less likely to result in hyperventilation of the rescuer.
D) allows greater tidal volume to be delivered to the patient.
Answer: A) can be used in conjunction with supplemental oxygen.
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The __________ nerve carries sensory fibers for sight.
Fill in the blank(s) with the appropriate word(s).
________ is the loss of accommodation that occurs with age due to a loss of lens elasticity.
Fill in the blank(s) with the appropriate word(s).
If the axon terminal of a motor neuron suddenly became permeable to calcium ions,
A) the neuron will fire an action potential. B) the motor end plate will be depolarized. C) the motor end plate will be hyperpolarized. D) neurotransmitter release will be blocked. E) the neuron will become unable to stimulate the muscle cell.
Which of the following lists the parts of a reflex arc in the correct sequence?
A. Effector, receptor, sensory neuron, motor neuron, interneuron B. Receptor, sensory neuron, interneuron, motor neuron, effector C. Receptor, sensory neuron, motor neuron, interneuron, effector D. Effector, sensory neuron, receptor, interneuron, motor neuron