Question

In thoracic breathing primarily the _________________ is/are used whereas in abdominal breathing the ____________________ is/are used

• A. external intercostal muscles, diaphragm
• B. diaphragm, external intercostal muscles
• C. diaphragm, diaphragm
• D. internal intercostal muscles, external intercostal muscles

Answer 1

The correct option is A external intercostal muscles, diaphragm

In thoracic breathing primarily the external intercostal muscles are used whereas in abdominal breathing the diaphragm is used.
$\begin{array}{cc}\text{Thoracic breathing}& \text{Abdominal breathing}\\ \text{i. Type of breathing that involves the chest.}& \text{i. Type of breathing that involves the belly.}\\ \text{ii. The external intercostal muscles are primarily used.}& \text{ii. The diaphragm is primarily used.}\\ \text{iii. This type of breathing usually occurs during}& \text{iii. This type of breathing usually occurs}\\ \text{vigorous exercise or in emergency situations.}& \text{during relaxed times i.e rest or sleep.}\end{array}$