Lymph tissue and lymph nodes that protect the body from infection A. adenoids and tonsils
B. alveoli and sinuses
C. bronchi and trachea

Life expectancy in the united states is (76.4 for men and 81.1 for women). life expectancy is not the same as healthy life expectancy. healthy life expectancy is the number of years a person is expected to live in this number is obtained by subtracting years spent in poor health from overall life expectancy. the world health organization (who) calculates healthy life expectancy in 194 countries. the united states ranks twenty-ninth in the world using this measurement, with an average of of healthy life expectancy. singapore ranks number one (76 years), and japan is number two (75 years).

The medical procatice that focuses are the care of the newborn child who is born premature is known as

What is the role of osteocytes, osteoblasts, and osteoclasts in bone repair?