Muscles of Thoracic Wall

Question 0

Insertion of External Intercostals, Internal Intercostals, and Innermost Intercostals

Answer 0

Superior border of ribs below

Question 1

Origin of External Intercostal, Internal Intercostal, and Innermost Intercostal

Answer 1

Inferior border of ribs

Question 2

Innervation of External Intercostal, Internal Intercostal, and Innermost intercostal

Answer 2

Intercostal nerve

Question 3

Action of External Intercostal

Answer 3

During forced inspiration elevates ribs

Question 4

Action of Internal intercostal and innermost intercostals

Answer 4

During forced respiration, interosseous part depresses ribs; interchondral part elevates ribs

Question 5

Origin of transversus thoracis

Answer 5

Posterior surface of lower sternum

Question 6

Insertion of Transversus Thoracis

Answer 6

Internal surface of costal cartilages 2-6

Question 7

Innervation of Transversus Thoracis

Answer 7

Intercostal Nerve

Question 8

Action of Transversus thoracis

Answer 8

Weekly depresses the ribs