循じゅん環かん器き科か

じゅ

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Meanings

1

noun

cardiology department; cardiovascular medicine

Refers to the hospital department or clinic specializing in heart and circulatory system conditions.

sequential, follow

環ring, circle, loop

器utensil, vessel, receptacle

科department, course, section

循じゅん環かん器き
循環器 means 'circulatory organ'; 循環器科 is the medical department for such organs.
内ない科か
内科 is internal medicine, a broader field; 循環器科 is a specialized subdivision.

Compound of 循環器 (circulatory organ) + 科 (department, field of study).