Which of the following is a site of muscarinic receptors? A) Spinal cord B) Motor end plate C) Autonomic ganglia D) Effector organs receiving sympathetic postganglionic cholinergic... Which of the following is a site of muscarinic receptors? A) Spinal cord B) Motor end plate C) Autonomic ganglia D) Effector organs receiving sympathetic postganglionic cholinergic fibers
Understand the Problem
The question is asking to identify which location is associated with muscarinic receptors from the given options. We need to evaluate each option based on our knowledge of muscarinic receptor distribution.
Answer
Effector organs receiving sympathetic postganglionic cholinergic fibers.
The final answer is D) Effector organs receiving sympathetic postganglionic cholinergic fibers.
Answer for screen readers
The final answer is D) Effector organs receiving sympathetic postganglionic cholinergic fibers.
More Information
Muscarinic receptors are typically found on effector organs that are innervated by postganglionic parasympathetic neurons. However, one key exception is the sympathetic postganglionic fibers that innervate sweat glands in the human body. These glands receive sympathetic cholinergic innervation and have muscarinic receptors.
Tips
Students might confuse the presence of muscarinic receptors at autonomic ganglia, where nicotinic receptors primarily act. Effector organs receiving sympathetic postganglionic cholinergic fibers like sweat glands are less commonly discussed, leading to potential oversight.
Sources
- Preganglionic Autonomic Fiber - Overview | ScienceDirect Topics - sciencedirect.com
- The Autonomic Nervous System - Anatomy & Physiology - pressbooks-dev.oer.hawaii.edu
AI-generated content may contain errors. Please verify critical information
