Question

give me the function of intercostal muscles

Answer 1

Intercostal muscles are muscle groups that are situated in between the ribs that create and move the chest wall. The muscles are broken down into three layers, and are primarily used to assist with the breathing process. The three layers are: 
1-external intercostal muscles,
2- internal intercostal muscles
3- innermost intercostal muscles.
 These muscles are innervated and supplied with blood by the intercostal nerves, intercostal veins, and intercostal arteries.

Answer 2

it helps in expiration and inspiration . during inspiration. intercoastal muscle get contracted by which volume of thoracic cavity. is increases and pressure is decreased by which. air get transfer from outside to inside. during expiration intercoastal muscle get relaxed , volume of thoracic cavity is decreased and pressure is increase , change in pressure. of atomp. and thoracic cavity get changed and expiration occurred .


I hope it will help!!!!