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Questions and Answers
What effect does norepinephrine have on cardiac muscle?
What effect does norepinephrine have on cardiac muscle?
- No effect
- Relaxing effect
- Inhibitory effect
- Excitatory effect (correct)
Which type of neurons release norepinephrine?
Which type of neurons release norepinephrine?
- GABAergic neurons
- Dopaminergic neurons
- Adrenergic neurons (correct)
- Cholinergic neurons
What is the role of an afferent neuron in a reflex arc?
What is the role of an afferent neuron in a reflex arc?
- Connects the sensory neuron to the effector
- Stimulates the effector organ directly
- Carries impulses to the CNS (correct)
- Carries impulses away from the CNS
Which neurons release acetylcholine at their endings?
Which neurons release acetylcholine at their endings?
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What neurotransmitter do sympathetic postganglionic fibers release?
What neurotransmitter do sympathetic postganglionic fibers release?
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What is the function of an effector in a reflex arc?
What is the function of an effector in a reflex arc?
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Which division of the autonomic nervous system releases acetylcholine at postganglionic endings?
Which division of the autonomic nervous system releases acetylcholine at postganglionic endings?
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What structures make synaptic connections in the central nervous system?
What structures make synaptic connections in the central nervous system?
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What is the role of a receptor in a reflex arc?
What is the role of a receptor in a reflex arc?
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What type of signals do reflex arcs involve?
What type of signals do reflex arcs involve?
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