21-28. Indicate the characteristics of the types of autonomic receptors using th

Question

21-28. Indicate the characteristics of the types of autonomic receptors using the following answers a. nicotinic receptors b. muscarinic receptors c. alpha receptors d. beta-1 receptors e beta-2 receptors 21.Bind with acetylcholine released from postganglionic fibers 22. Adrenergic receptor found primarily in the heart 23.Activation of this type of adrenergic receptor is generally inhibitory 24.Bind with acetylcholine released from preganglionic fibers 25.Activation of this type of adrenergic receptor is usually excitatory 26.Found in all autonomic ganglia 27.The most widely distributed receptor 28. This receptor does not follow a G protein Pathway

Explanation / Answer

21. a. Muscarinic receptors.

Explanation: Muscarinic receptors are sensitive to muscarine. They serve as main end receptors for acetylcholine.

22. d. beta-1 receptors

Explanation: It is located on the cardiac pacemaker and increases the heart rate.

23. c. alpha receptors

Explanation: alpha receptors cause inhibition of the olfactory system.

24. a. nicotinic receptors

preganglionic nerves of the sympathetic nervous system terminating in the adrenal medulla is a nicotinic receptor.

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