Description
For this Week’s Discussion, you should read Chapter 2 from your textbook for this class (Costanzo, Physiology) then write your post on “Why a good understanding of autonomic physiology is imperative in medicine and disease treatment”. Your post should;
- Describe neurotransmitters and receptors of the autonomic nervous system.
- Choose one (1) receptor and describe its location(s) and the physiologic effects of its stimulation.
- Describe a pharmacologic agent that targets this receptor and the disease it is used in treating.
Replies:
In your first reply to a peer thread, identify another autonomic nervous system receptor and describe its function.
In your second reply to a peer thread, identify another drug that targets an autonomic nervous system receptor and the disease it is used to treat.
a minimum of 500 words for discussion and 250 for each reply
https://doctor2016.jumedicine.com/wp-content/uploa...thats the link for the book that i found so u can look at chapter 2
Explanation & Answer
View attached explanation and answer. Let me know if you have any questions.
1. Describe neurotransmitters and receptors of the autonomic nervous system.
The autonomic nervous system refers to that system which controls the involuntary movements of the
body – especially the internal organs. This is fundamental physiologic system that enables activities such
as digestion and heart bumping to occur. The autonomic nervous system may be subdivided into
“sympathetic” and “parasympathetic” categories. The first, sympathetic, refers to “fight and flight”
situations. The second, parasympathetic, refers to “rest and digest” situations. For example, if one sees a
snake, the sympathetic nervous system is activated. On the other hand, if one sits down to watch TV, the
parasympathetic nervous system is activated. The autonomic nervous system, overall, is part of the
peripheral nervous system – and, innervates structures located outside the brain and spinal cord. Neuronal
bodies are located in structures known as ganglia, which may be located close or far from the effector
organ. In the sympathetic nervous system, the postganglionic neurons are mostly adrenergic and, the
parasympathetic postganglionic neurons are mostly cholinergic. Adrenaline’s formula is C9H13O3 and
acetylcholine’s formula is C7H16NO2+.
When the parasympathetic nervous system is activated, we have: (i) constriction of pupils; (ii) increase
in saliva production; (iii) heart rate reduction; (iv) bronchiole constriction; (v) stimulated activity of
digestive organs; (vi) stimulated activity of pancreas; (vii) stimulated gall bladder; (viii) constricti...
