Concept:
Charaka Samhita is one of the most important and ancient texts of Ayurveda, the traditional system of Indian medicine. It was written by the sage Charaka and primarily deals with internal medicine, diagnosis, treatment and prevention of diseases.
• One of the foundational texts of Ayurveda.
• Focuses on medicine, diet, health and disease prevention.
• Emphasizes maintaining physical, mental and spiritual well-being.
Step 1: Understand what Charaka Samhita is.
Charaka Samhita is a classical Ayurvedic text that explains:
• Human anatomy and physiology.
• Causes and symptoms of diseases.
• Methods of diagnosis.
• Herbal medicines and therapeutic treatments.
Hence, it belongs to the system of:
\[
\boxed{\text{Ayurveda}}
\]
Step 2: Differentiate the medical systems.
• Unani -- Traditional Greco-Arabic system of medicine.
• Ayurveda -- Ancient Indian medical system; Charaka Samhita is one of its principal texts.
• Siddha -- Traditional system mainly practiced in South India.
• Homeopathy -- Modern alternative medical system developed by Samuel Hahnemann.
Step 3: Know another important Ayurvedic text.
Besides Charaka Samhita, another famous Ayurvedic text is:
\[
\boxed{\text{Sushruta Samhita}}
\]
which mainly deals with surgery and is associated with Sage Sushruta, known as the "Father of Surgery."
Step 4: Final conclusion.
Therefore, the medical system described in Charaka Samhita is:
\[
\boxed{\text{Ayurveda}}
\]