Quiz 5-Autonomic Nervous System
Acetylcholine binds to 1. nicotinic receptors 2. muscarinic receptors 3. alpha receptors
1 and 2 are correct
Acetylcholine is released 1. at the neuromuscular junctions 2. within sympathetic ganglia 3. within parasympathetic ganglia
1, 2 and 3 are correct
Alpha and beta adrenergic receptors 1. are sensitive to epinephrine and norepinephrine 2. have several subclasses 3. mediate response to the sympathetic nervous system
1, 2 and 3 are correct
Activation of muscarinic receptors will cause 1. skeletal muscle contraction 2. increase heart rate 3. increase sweating
3 only
Which neurotransmitter is released at the autonomic ganglion by the preganglionic neuron in the diagram?
Acetylcholine
Which neurotransmitter is released at the gland by the preganglionic neuron in the diagram?
Acetylcholine
Which endocrine gland is directly innervated by sympathetic preganglionic axons?
Adrenal gland
What type of nervous system pathway is shown in the figure?
Autonomic motor pathway
Stimulation of the indicated axon will
Constrict the pupil
Which of the following does NOT describe the sympathetic division of the ANS?
Ganglia primarily found in the head
Which division of the ANS innervates the sweat glands and the hair follicles?
Sympathetic
Which of the following does NOT describe the parasympathetic division of the ANS?
Synapses with smooth muscle in blood vessels walls This is a correct answer
Nicotinic receptors
are found in all autonomic ganglia
What part of the nervous system is the main control and integrative center of the autonomic nervous system?
hypothalamus
The structure labeled 2 in the diagram is a
parasympathetic preganglionic neuron
The indicated structures contain
sympathetic postganglionic neurons
Which of the following does not describe the autonomic nervous system?
the effectors are primarily skeletal muscles
The sympathetic division of the ANS is called the thoracolumbar division because:
the preganglionic neuronal cell bodies are located in the gray matter
Which of the following effects does not occur during the fight-or-flight response?
the pupils constrict
Which of the following types of adrenergic receptors are found on cardiac muscle fibers where their activation stimulates increased force and rate of contraction of the heart?
β1adrenergic
