# Neurobiology

> Nervous system biology

- Skill: `ffsshhttiikk/neurobiology` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ffsshhttiikk/neurobiology`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ffsshhttiikk/neurobiology/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: ffsshhttiikk (https://skillmd.com/u/ffsshhttiikk)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ffsshhttiikk/neurobiology

---


## What I do

- Study nervous system structure and function
- Investigate neuronal communication
- Analyze neural development
- Research synaptic transmission
- Study brain circuits and behavior
- Investigate neural disorders

## When to use me

- When studying neuron structure and function
- When analyzing synaptic transmission
- When investigating neural development
- When researching neurological disorders
- When studying brain-behavior relationships
- When working with neural tissues

## Key Concepts

### Neuron Structure

- **Soma**: Cell body, contains nucleus
- **Dendrites**: Receive signals
- **Axon**: Conducts signals away
- **Axon terminals**: Release neurotransmitters
- **Myelin**: Insulation, saltatory conduction

### Action Potential

```python
# Simplified action potential model
def action_potential(V, thresholds):
    """
    Model neuron firing.
    V: Membrane potential (mV)
    thresholds: Resting ~-70mV, firing ~-55mV
    """
    if V < -55:
        return 'resting'
    elif -55 <= V < 30:
        return 'depolarization'
    elif 30 >= V >= -70:
        return 'repolarization'
    else:
        return 'refractory'

# Ion channels involved
channels = {
    'depolarization': 'Na+ channels open',
    'repolarization': 'K+ channels open',
    'refractory': 'Na+ channels inactivated'
}
```

### Synaptic Transmission

1. Action potential arrives at terminal
2. Ca²⁺ influx triggers vesicle fusion
3. Neurotransmitter release into synapse
4. Binding to postsynaptic receptors
5. Ion channel opening/closing
6. Signal termination (reuptake, degradation)

### Neurotransmitters

- **Excitatory**: Glutamate, acetylcholine
- **Inhibitory**: GABA, glycine
- **Modulatory**: Dopamine, serotonin, norepinephrine
- **Neuropeptides**: Substance P, endorphins