Multiple Choice
Which component of the signal transduction pathway in rod cells is found in the cytosol of the cell?
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10. Cell Signaling
Introduction to Cell Signaling
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Which of the following structures issues output to the ventral respiratory group (VRG) to adjust the respiratory rhythm?
A
Cerebellum
B
Hypothalamus
C
Dorsal root ganglion
D
Pre-Bötzinger complex
Verified step by step guidance1
Understand the role of the ventral respiratory group (VRG): The VRG is a cluster of neurons in the medulla oblongata that plays a key role in generating the basic rhythm of breathing.
Identify the Pre-Bötzinger complex: This is a specialized group of neurons located in the medulla oblongata, adjacent to the VRG, and is known to act as a pacemaker for respiratory rhythm.
Clarify the relationship between the Pre-Bötzinger complex and the VRG: The Pre-Bötzinger complex sends rhythmic signals to the VRG, which then adjusts the respiratory rhythm based on these inputs.
Eliminate incorrect options: The cerebellum is primarily involved in motor coordination, the hypothalamus regulates homeostasis and autonomic functions, and the dorsal root ganglion is associated with sensory input, none of which directly influence the VRG.
Conclude that the Pre-Bötzinger complex is the correct structure responsible for issuing output to the VRG to adjust respiratory rhythm.
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