Question

the definition of tachycardia is __.
condition of a fast heart
infection behind the heart
condition of a painful heart
picture within the heart
question 15
the combining form mamm/o- means \__.\
breast
nose
retina
face
question 16
which word means \inflammation of the lung\?
pneumonitis
laryngitis
neuritis
hepatitis

Explanation:

1. For the tachycardia question: The prefix "tachy-" means fast, and "-cardia" refers to the heart condition.
2. For the mamm/o- question: The combining form "mamm/o-" is a standard medical root referring to the breast.
3. For the lung inflammation question: "Pneumon-" refers to the lung, and "-itis" means inflammation; other terms refer to inflammation of the larynx, nerves, and meninges respectively.

Answer:

1. condition of a fast heart
2. breast
3. Pneumonitis