Preganglionic fibers from the thoracic and lumbar segments of the spinal cord are part of the ____ division of the ANS.
A. central
B. sympathetic
C. somatic motor
D. parasympathetic
E. ganglionic
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Question 2) In the sympathetic division of the ANS,
A. an important characteristic is convergence of neurons.
B. preganglionic fibers are generally longer than postganglionic fibers.
C. the preganglionic cell body is located in the lateral horn of the spinal cord.
D. a single preganglionic fiber usually synapses with a single postganglionic fiber.
E. preganglionic fibers emerge from the cervical portion of the spinal cord.
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Question 3) Which of the following is NOT a type of enteric neuron?
A. enteric interneuron
B. enteric sensory neuron
C. enteric bipolar neuron
D. enteric motor neuron
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Question 4) Arrange the following in correct sequence: (1) autonomic ganglia and ganglionic synapse (2) synapse with target tissues (3) preganglionic neuron (4) postganglionic neuron
A. 2, 3, 4, 1
B. 1, 3, 2, 4
C. 3, 1, 4, 2
D. 4, 1, 3, 2
E. 4, 3, 1, 2
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Question 5) Which of the organs listed below is not directly innervated by the autonomic nervous system?
A. the heart
B. sweat gland
C. smooth muscle
D. skeletal muscle
E. salivary gland
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Question 6) What type of nerve would cause the smooth muscle of a blood vessel wall to constrict?
A. sensory
B. afferent
C. autonomic
D. somatic motor
E. cranial
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Question 7) Which of the following statements applies to the autonomic nervous system?
A. The ANS innervates skeletal muscle.
B. ANS functions are consciously controlled.
C. The ANS controls unconscious movement of skeletal muscles.
D. The receptor molecules of the ANS may be muscarinic, nicotinic, or adrenergic.
E. A single neuron from the spinal cord carries action potentials to effector organs in the ANS.
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Question 8) Compared to a somatic reflex, an autonomic reflex utilizes
A. one motor neuron plus cardiac and smooth muscle and glands as effectors.
B. one motor neuron plus skeletal muscles as effectors.
C. two motor neurons plus cardiac and smooth muscle and glands as effectors.
D. two motor neurons plus skeletal muscles as effectors.
E. three motor neurons plus skeletal muscles as effectors.
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Question 9) Efferent neurons of the
A. somatic motor nerves innervate smooth muscle.
B. ANS innervate skeletal muscle.
C. somatic motor nerves connect skeletal muscles to the chain ganglia of the spinal cord.
D. ANS utilize one neuron to connect the CNS to the effector organ.
E. ANS utilize two neurons in series to connect the CNS to the effector.
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Question 10) Which of the following is NOT an effector controlled by the autonomic nervous system?
A. cardiac muscle
B. glands
C. skeletal muscle
D. smooth muscle in blood vessels
E. smooth muscle in the digestive system
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