Textbook Question
Which neurotransmitter(s) is/are used by sympathetic postganglionic neurons?
a. Epinephrine
b. Norepinephrine
c. Acetylcholine
d. Both a and b
e. All of the above
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14. The Autonomic Nervous System
Neurotransmitters of the ANS
Back14. The Autonomic Nervous System
Neurotransmitters of the ANS
- Textbook Question
Match the following neurotransmitters with their correct description.
_____ GABA
_____ Dopamine
_____ Substance P
_____ Acetylcholine
_____ Glutamate
_____ Endorphins
_____ Norepinephrine
a. Neuropeptide involved in transmission of pain
b. Neurotransmitter released at the neuromuscular junction
c. Major excitatory neurotransmitter in the brain
d. Major inhibitory neurotransmitter in the brain
e. Neuropeptide involved in relief of pain
f. Catecholamine involved in the autonomic nervous system
g. Catecholamine involved in movement and behavior
- Multiple ChoiceWhich of the following substances is a hormone and a neurotransmitter?1views
- Multiple ChoiceWhich of the following neurotransmitters is NOT released at sympathetic neuroeffector junctions?1views
- Multiple ChoiceWhich neurotransmitter excites skeletal muscle and inhibits cardiac muscle?1views
- Multiple Choice__________ and __________ are the major neurotransmitters released by autonomic nervous system neurons.1views
- Multiple ChoiceWhich catecholamine receptor subtype is primarily responsible for increasing heart rate (positive chronotropy) in the heart?
- Textbook Question
Receptors that bind acetylcholine at the postsynaptic membrane are:
(a) Chemically gated channels
(b) Voltage-gated channels
(c) Passive channels
(d) Mechanically gated channels
2views - Multiple ChoiceBeta blockers decrease the sympathetic response by blocking which neurotransmitter?1views
- Multiple ChoiceWhich neurotransmitters are secreted by the neurons of the autonomic nervous system?1views
- Textbook Question
Many chemical warfare agents, such as the poisonous gas sarin, block the enzyme acetylcholinesterase in the synaptic cleft. What effects will this poison have on muscle contraction? What effects will it have on the autonomic nervous system? What symptoms would you expect to see from this poison?
1views - Textbook Question
Mrs. Jones has had a progressive decline in her mental capabilities in the last five or six years. At first her family attributed her occasional memory lapses, confusion, and agitation to grief over her husband's death six years earlier. When examined, Mrs. Jones was aware of her cognitive problems and was shown to have an IQ score approximately 30 points less than would be predicted by her work history. A CT scan showed diffuse cerebral atrophy. The physician prescribed an acetylcholinesterase inhibitor and Mrs. Jones showed slight improvement. What is Mrs. Jones's problem? Why did the acetylcholinesterase inhibitor help?
1views - Multiple ChoiceWhich neurotransmitter is primarily released by postganglionic neurons of the sympathetic nervous system (SNS)?
- Textbook Question
Neuropeptides that act as natural opiates include
a. Substance P
b. Somatostatin and cholecystokinin
c. Tachykinins
d. Enkephalins
1views - Textbook Question
Biogenic amine neurotransmitters include all but
a. Norepinephrine
b. Acetylcholine
c. Dopamine
d. Serotonin