The Parasympathetic Nervous System utilizes which neurotransmitter?
Dopamine
Acetylcholine
Norepinephrine
Epinephrine
The Correct Answer is B
The Parasympathetic Nervous System utilizes the neurotransmitter acetylcholine. Acetylcholine is released by the postganglionic neurons of the parasympathetic nervous system and acts on target organs and tissues to elicit parasympathetic responses. It plays a crucial role in regulating various bodily functions, including digestion, heart rate, respiratory rate, and other rest and digestion activities.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The sympathetic nervous system postganglionic neurons primarily release norepinephrine as their neurotransmitter. These neurons are part of the autonomic nervous system and are responsible for coordinating the body's "fight or flight" response to stress or danger.
Norepinephrine acts as a neurotransmitter at the postganglionic synapses and binds to adrenergic receptors in the target tissues, mediating the physiological responses associated with sympathetic activation.
While acetylcholine is the primary neurotransmitter released by the preganglionic neurons of the sympathetic nervous system, it is not the neurotransmitter released by postganglionic neurons. Epinephrine (also known as adrenaline) is released into the bloodstream by the adrenal medulla and acts as a hormone, not a neurotransmitter. Arginine is an amino acid and is not directly involved in the neurotransmission of the sympathetic nervous system.
Correct Answer is ["C","D"]
Explanation
The nurse should make the following responses regarding how albuterol helps the client's breathing:
- The medication will open the airways.
- The medication will prevent wheezing.
Albuterol is a bronchodilator medication commonly used to treat respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD). It works by relaxing the smooth muscles in the airways, leading to the dilation of the bronchial tubes and increased airflow. This mechanism helps open up the airways and prevent or relieve symptoms such as wheezing, shortness of breath, and chest tightness.
The other options are incorrect because:
The medication will decrease coughing episodes: While albuterol may indirectly reduce coughing episodes by opening up the airways and improving airflow, its primary effect is on bronchodilation rather than directly targeting coughing.
The medication will stimulate the flow of mucus: Albuterol is not known to stimulate mucus flow. Instead, it focuses on bronchodilation to improve airflow in the lungs.
The medication will reduce inflammation: Albuterol is primarily a bronchodilator and does not have a significant anti-inflammatory effect. Other medications, such as corticosteroids, are typically used to address inflammation in respiratory conditions.
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