Diaphragm Cheat Sheet

University:
The University Of Western Ontario
Course:
ANAT 2200B | Systemic Anatomy of the Human Body
Academic year:

2022
Views:

170

Pages:

3
Author:

Kyuwon J.

Diaphragm ● Main muscle attachments ○ Sternal parts ■ Posterior xiphoid process ○ Coastal parts ■ Inner surface of 6 ribs ■ Costal cartilages ○ Lumbar parts through curva ■ Right crus ● Typically L1-L3 ■ Left crus ● Typically L1-L2 ■ Arcuate ligaments ● Meidan ● Meidal ● Lateral ○ Accounting for tendinosus arch ● Insertions ○ Fiber converge through central tendons ○ Fusing with fibrous pericardiums ● Opening ○ Levels and contents ○ T8 ■ Caval opening ■ IVC ■ Right phrenic nerves ○ T10 ■ ■ ■ ■ ■ ○ T12 ■ ■ ■ ■ Esophageal Hiatus Esophagus Vagal trunks Esophageal vessels Lymph Aortic hiatus Aorta Thoracic duct Azygos ● Commonly 8 10 Eggs At 12 IVC T8, Esophagus T10, Aorta T12 Innervation ● Motor ○ Phrenic nerves ○ C3-C5 ● Sensory ○ Central diaphragm ■ Prenic ● C3-C5 ● Pain to shoulder ■ Peripheral diaphragm ■ Lower intercostal nerves ● T7-T12 ○ Blood supply ■ Pericardiacophrenic ■ Musculophrenic ● This is from internal thoracic ■ Superior phrenic ● Thoracic aorta ■ Inferior phrenic ● Abdominal aorta