System Fundamentals
"The heart is the only organ that works 24/7 without rest. Understanding its mechanics is the foundation of acute nursing care."
The nervous system is the master control network, integrating sensory input, coordinating motor output, and regulating all physiological processes. It comprises the CNS (brain + spinal cord) and PNS (somatic + autonomic divisions), communicating via electrochemical signals across synapses.
Key Concept
Perfusion: The continuous passage of blood through capillaries to tissue.
Nursing Alert
Inadequate cardiac output leads to rapid organ failure.
Module Progress
Readiness Score64%
Learning Aids
- ECG Interpretation Guide
- Cardiac Cycle Animation
- Clinical Murmur Library