Study clinician or physician. vii. Etiology: It

Study of pathology is divided into two parts:

1. General Pathology:

It deals with the general principles of disease. It is related to whole body.

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2. Systemic Pathology:

It is the study of disease related to the specific organs of the body system.

Terminology in Pathology:

i. Health:

Health is a condition when individual is in complete accordance with the surroundings. It is a state of complete physical, mental and social well-being.

ii. Disease (Disease—feeling of uneasiness):

State of discomfort to the body is disease.

iii. Patient:

Patient is the person affected by disease.

iv. Pathology (Pathos—disease, logos—study):

Pathology is the scientific study of diseases.

v. Symptoms:

Symptoms are those which are narrated by patients and his relatives.

vi. Signs:

Signs are those which are observed by clinician or physician.

vii. Etiology:

It is a causal factor responsible for the formation of disease.

viii. Pathogenesis:

The mechanism by which the disease is produced is termed pathogenesis.

The laboratory plays a crucial role in the diagnosis of disease and therapeutic management of patients. The clinician depend upon the laboratory for the diagnosis of diseases.

The diagnosis of a disease involves examination of speci­mens collected from the patients which include urine, stool, sputum, blood, cerebrospinal fluid (CSF), other body exudates and biopsy material. The diagnostic tests of these specimens are carried out in the laboratory.