Question

In the term orthopnea, the combining form orth/o means:

A) Chest
B) Breathing
C) Upright
D) Heart
E) Pain

Answer 1

The term orthopnea is related to difficulty breathing. In this term, 'orth/o' means 'breathing'.

Step-by-step explanation:

In the term orthopnea, the combining form orth/o means breathing.

Orthopnea is a medical term that refers to difficulty breathing when lying flat. The prefix 'ortho-' means 'upright' or 'straight,' but in this context, it specifically refers to the position that eases the individual's breathing difficulty. So, in the term orthopnea, the combining form 'orth/o' means 'breathing'.