Thieme Atlas of Anatomy: Diaphragm Structure and Innervation

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What muscle, located in the lower anterior thorax, is responsible for depressing the ribs?

External intercostals

Internal intercostals

Transversus thoracis (correct)

Inferior costal muscles

Which muscle originates from the xiphoid process and lower body of the sternum?

Diaphragm

Pectoralis major

Transversus thoracis (correct)

Intercostal muscles

In expiration, which muscle lowers the ribs?

Innermost intercostals

Subcostal muscles

External intercostals

Transversus thoracis (correct)

Which structure contains the intercostal bundle arranged as vein, artery, and nerve?

Subcostal groove Signup and view all the answers

Which muscle lies between the innermost and internal intercostal muscles?

Transversus thoracis Signup and view all the answers

What happens to the diaphragm during relaxation?

Raises up Signup and view all the answers

What happens to the diaphragm during relaxation?

It raises up Signup and view all the answers

Which part forms the broad lower end of the thoracic cage?

Thoracic outlet Signup and view all the answers

How many pairs of ribs articulate directly with the sternum?

Seven Signup and view all the answers

Which ribs are known as 'floating' ribs?

Ribs 11 and 12 Signup and view all the answers

What is the superior thoracic aperture also known as?

Thoracic inlet Signup and view all the answers

At which vertebral level does the upper border of the manubrium sterni lie?

T3 Signup and view all the answers

What is the innervation of the diaphragm?

Phrenic nerve Signup and view all the answers

Which part of the diaphragm has the most ligaments?

Right Crus Signup and view all the answers

What is the significance of 'T8' and 'T10' in relation to the diaphragm?

The number of letters in 'vena cava' and 'esophagus' Signup and view all the answers

Thieme Atlas of Anatomy: Diaphragm Structure and Innervation

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Questions and Answers

What muscle, located in the lower anterior thorax, is responsible for depressing the ribs?

Which muscle originates from the xiphoid process and lower body of the sternum?

In expiration, which muscle lowers the ribs?

Which structure contains the intercostal bundle arranged as vein, artery, and nerve?

Which muscle lies between the innermost and internal intercostal muscles?

What happens to the diaphragm during relaxation?

What happens to the diaphragm during relaxation?

Which part forms the broad lower end of the thoracic cage?

How many pairs of ribs articulate directly with the sternum?

Which ribs are known as 'floating' ribs?

What is the superior thoracic aperture also known as?

At which vertebral level does the upper border of the manubrium sterni lie?

What is the innervation of the diaphragm?

Which part of the diaphragm has the most ligaments?

What is the significance of 'T8' and 'T10' in relation to the diaphragm?

Which nerve provides motor innervation to the diaphragm?

How are the crura of the diaphragm asymmetrical?

Where does the lateral arcuate ligament attach?

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