Chest Flashcards
What is chest called?
Thoracic
Bony framework of chest
Thoracic cage
What makes up thoracic cage?
Thoracic vertebrae/ ribs/ sternum and costal cartilage
What does thoracic cage protect?
Heart/ lungs/ other organs
What is sternum made up of?
Mwnubrium/ body of sternum/ xiphoid process
What are first 7 ribs called?
True ribs
What are next 5 pairs of ribs called?
False ribs
Thoracic Diaphram
O: Inferior border of ribcage/ xiphoid process/ costal cartilage/ lumbar Vertebrae
I: inserts into itself
A: Pulls central tendon down causing inspiration
External Intercostals
O: Inferior border and costal cartilage of rib above
I: Superior of rib below
A: Elevates rib during inspiration
Internal Intercostals
O: Superior border of rib below
I: Inferior border of rib above
A: Draws ribs together and depresses rib cage helping with e
expiration
Innermost Intercostals
O: Inner surface of ribs near their angles
I: Inner surface of 2nd or 3rd rib below rib of origin
A: Draws ribs together aiding expiration