The neuron soma contains what?

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Study for the Galen Anatomy and Physiology (AandP) 1 Theory Exam 2. Gain confidence with flashcards, pinpoint areas needing focus, and strengthen understanding through detailed explanations. Excel in your exam with comprehensive preparation!

Multiple Choice

The neuron soma contains what?

Explanation:
The soma is the neuron’s cell body and its defining feature is the nucleus, the control center that houses the cell’s DNA and governs gene expression. This is where the instructions for making all the essential proteins—ion channels, receptors, enzymes, cytoskeletal components—are stored and used to steer the neuron's activities. While mitochondria (energy producers) and ribosomes (protein factories) are also present in the soma, the nucleus is the key structure that coordinates how the neuron responds and adapts. The myelin sheath, on the other hand, surrounds the axon and is made by glial cells, not located inside the soma.

The soma is the neuron’s cell body and its defining feature is the nucleus, the control center that houses the cell’s DNA and governs gene expression. This is where the instructions for making all the essential proteins—ion channels, receptors, enzymes, cytoskeletal components—are stored and used to steer the neuron's activities. While mitochondria (energy producers) and ribosomes (protein factories) are also present in the soma, the nucleus is the key structure that coordinates how the neuron responds and adapts. The myelin sheath, on the other hand, surrounds the axon and is made by glial cells, not located inside the soma.

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