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What 3 things make up the sternum?
- xiphoid process
How many pair of ribs are there?
How many true/false/floating ribs are there?
- 1-7 true
- 8-10 false
- 11-12 floating
What are some things the ribs help do?
- connect vertebral column with sternum
- due to attachements limits mvmt of thoracic spine
- protect internal organs
What attaches ribs to the sternum?
Costovertebral facets (articulations) articulate with what 2 things?
- body of vertebra
- transverse processes
ribs and vertebrae join at 2 areas
What is a demifacet?
some ribs attach to only 1/2 of the vertebra up and down
All the joints (facets) are what type of joint?
monaxial, diarthrodial, gliding jts
What mvmt occurs at the rib cage?
What happens when the rib cage moves up and out (elevates), and the thoracic cavity becomes larger?
What happens when the rib cage moves down and in, the thoracic cavity becomes smaller, and the pressure is increased?
Inspiration contains what three phases?
Expiration contains what 2 phases?
What 2 muscles are used for deep inspiration?
What 5 muscles are used for forced expiration?
- rectus abdominis
- external oblique
- internal oblique
- transverse abdominis
- quadratus lumborum