Mediastinum and Pericardium

• Which of the following is NOT a boundary of the mediastinum?

• Diaphragm

• Sternum

• Lungs

• Thoracic vertebrae

What structure divides the superior and inferior mediastinum?

• Sternal angle

• Manubrium

• 1st rib

• Diaphragm

Which great vessel is located in the middle mediastinum?

• Superior vena cava

• Aortic arch

• Superior vena cava (lower half)

• Thoracic duct

Which of the following is a direct branch of the aortic arch?

• Right subclavian artery

• Left common carotid artery

• Right common carotid artery

• Inferior vena cava

Which nerve supplies the fibrous pericardium and is sensitive to pain?

• Vagus nerve

• Sympathetic trunk

• Phrenic nerve

• Recurrent laryngeal nerve

Which pericardial sinus lies between the ascending aorta anteriorly and the superior vena cava posteriorly?

• Coronary sinus

• Transverse pericardial sinus

• Oblique pericardial sinus

• Atrioventricular groove