What used to be described as Nissl's granules in a nerve cell are now identified as _
Correct answer: C. Ribosomes
- A. Cell metabolites
- B. Fat granules
- C. Ribosomes
- D. Mitochondria
Explanation
The cell body of a nerve cell contains basophilic granules called Nissl's granules. These bodies are particles seen within the cell bodies of neurons, consisting of granular endoplasmic reticulum and polyribosomes. They are rich in RNA and stain strongly with basic dyes.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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