Principles in health and Disease

What is a stressor?

A type of stimulus which results in physiological or psychological strain which disturbs the functioning of an organism.

What is an injury?

Stress upon a tissue disrupting structure and function.

What environmental factors may influence the development of disease?

Physical, chemical, biological, nutritional deficiency or excess, oxygen deficiency, latrogenic disease.

What are the types of oxygen deficiency?

Hypoxia, Anoxia, Hypoxaemia, Ischaemia

Hypoxia is

Insufficient availability of oxygen at the tissue level