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Intercostal Muscles and Diaphragm Anatomy

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Intercostal Muscles and Diaphragm Anatomy

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Questions and Answers

Which muscle compresses the abdominal cavity, pushes the diaphragm up, and pushes air out of the lungs?

Pectoralis major

Subclavius

Abdominal muscles (correct)

Pectoralis minor

What is the primary function of the extrinsic muscles mentioned in the text?

Movement of the rib cage

Flexion of the spine

Respiration

Movement of the pectoral girdle (correct)

Which muscle pulls the ribs downward and inward during expiration?

Serratus anterior

Internal intercostal muscles (correct)

Pectoralis minor

Pectoralis major

What is the function of the serratus anterior muscle?

Movement of the pectoral girdle Signup and view all the answers

Which muscle is NOT part of the anterior axioappendicular muscles as mentioned in the text?

Pectoralis minor Signup and view all the answers

What is the attachment point for the subclavius muscle as mentioned in the text?

Thoracic cage Signup and view all the answers

In what situation are expiratory muscles used according to the text?

During exercise or increased airway resistance Signup and view all the answers