tumor and cancer
Abnormal mass of cells
-Benign
-Malignant
Tumor
the condition in which the human body per- forms its vital functions normally
health
Unicellular organisms that cause disease
pathogens
Groups of cells that are similar to each other in structure and function.
tissues
True or False
Benign tumors can become malignant.
True
evidence of disease observed on physical examination, such as abnormal pulse or respiratory rate, fever, and sweating
signs
the liquid part of blood in which blood cells flow.
Located in the digestive tract, this epithelial tissue protects, absorbs, and secretes digestive juice; often contains goblet cells (mucus)
Simple Columnar
Located in the walls of the blood vessels, alveoli and kidneys, this epithelial tissue permits the exchange of nutrients and waste. Allows diffusion of oxygen and carbon dioxide; filtration of water and electrolytes.
Simple Squamous
diseases caused by pathogens that can be passed from one living thing to another
infectious diseases
tiny openings
pores
FOUR GROUPS OF
TISSUE
epithelial, connective, nerve and muscle