Class notes
Intercostal structures
- Course
- Institution
Lecture notes of 9 pages for the course Medicine at QUB (Respiratory anatomy)
[Show more]
Seller
Follow
caustin2536
Content preview
INTERCOSTAL STRUCTURESBreathing in Cquiet inspiration
Diaphragm contracts dome lowers
External intercostal muscles Raise ribs
Thoracic volume 4 Air sucked into lungs
Intra pleural pressure
Breathing out quiet 1passiveexpiration
Diaphragm relaxes dome rises due to decompression of
Abdo organs
No muscles involved
Thoracic volume recoil Air out
Intra pleural pressure 9
my lungs
Rib movements
A Bucket handle action B Pump handle action T
T transverse dimension Anteroposterior dimension
lower
Mainly Mainly upper
, Intercostal muscles
A External intercostal muscles 4
Run in Fero
anteriorly from rib above to rib
below
They elevate ribs duringinspiration
NB muscle is not presentanteriorly
A
replaced by external intercostal membrane
B B Internal intercostals B Run
in fero
posteriorly from rib above to rib
below
deep and perpendicular to externals
Interosseus parts depress ribs in expiration
I N N E R V A TI O N INTERCOSTAL NERVES
Intercostal muscles stiffen the intercostal space so it
doesn't inward outward
during breathing additionally
bulge
aid in posture coughing t vomiting
Deeper muscles Trans versus thoracies
Innermost intercostals f Runs from posterior
Same as internal muscles aspectof sternum to
DO
iii Run from
rib above to 213 below
only posteriorly
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller caustin2536. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $4.01. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83637 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now