Identify structure "E" on the bottom diagram
A. autonomic ganglion
B. somatic motor neuron
C. effector organ (smooth muscle of GI tract)
D. postganglionic neuron
E. preganglionic neuron
C
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Sensory nerves that detect changes in a variable that is being regulated comprise the ________ of the control mechanism.
Fill in the blank with correct word.
Air remaining in the conducting portion of the respiratory system that does not reach the alveoli is known as
A) functional residual capacity. B) respiratory minute volume. C) alveolar ventilation volume. D) anatomic dead space. E) minimal volume.
Which of the following statements about the functions of the paranasal sinuses is false?
A) They provide an extensive area of mucous epithelium. B) They make skull bones lighter. C) The mucus they secrete enters the nasal cavities. D) They support cilia that move the mucus. E) They create a protected space for blood vessels and nerves.
A neuron within the central nervous system that carries action potentials from one neuron to another is called a/an ________.
A. afferent neuron B. sensory neuron C. motor neuron D. interneuron E. efferent neuron