ENDOCRINE ORGANS AND RESPIRATORY SYSTEM
RESPIRATORY SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which two muscles are responsible for BREATHING?
|
|
The Diaphragm
|
|
|
The Lungs
|
|
|
The Heart
|
|
|
The Intercostal Muscles
|
Explanation:
Detailed explanation-1: -During breathing at rest, this is accomplished by the coordinated activity of the diaphragm and inspiratory rib cage muscles.
Detailed explanation-2: -The intercostal muscles are the muscles between the ribs. During breathing, these muscles normally tighten and pull the rib cage up. Your chest expands and the lungs fill with air.
Detailed explanation-3: -The external and internal intercostals do not work individually during breathing. They are assisted by the sternocleidomastoid and scalene muscles on the neck.
There is 1 question to complete.