Session 1- Mm of the Thoracic Cage Flashcards
Primary Mm of Respiration
Diaphragm
Intercostal Space Mm
External, Internal Intercostal
Neurovascular Bundle
Innermost Intercostal
Internal Cage mm
Subcostal and the Transverse Thoracics
External Cage Mm
Levator Costorum
Serratus Posterior Superior/Inferior
Accessory Mm of Respiration when then inspiration is deep and forceful
Serratus anterior, posterior, superior
Pec Major/Minor
SCM
Scalenes
Intercostal
which way do Externa Intercostal Mm fibres run
infero-anteriorly
action of the External Intercostal Mm
elevate ribs-inspiration
which way to do Internal Intercostal mm fibres run
inefero-posteriroly
action of the Intenal Intercostal mm run
Interosseis-depress
interchondral- eelevates
what action do the inner intercostal mm share
internal intercostal
Subcostal Mm inserts where, how many IC does it span? what direction-action
upper margin ribs 2-3 ribs below
Spanning 1-2 IC spaces
same direction as Internal Intercostal with the same action of Interosseus depression
interchondral-elevate
Transversus Thoracics insertion
posteior surface of the xiphoid and body of the sternum and internal surface of 2-6 costal cartilage
Serratus Posterior Superior attachments
Inferior part of the nuchal line, sps C7-T3
supeiro border of ribs 2-4
action to elevate the ribs
supplied by intercostal nerve 2-5
Serratus posterior Inferior PANDAS
SP’s of t11-L2
inferior border of llower rib R8-12
depress and inferior ribs
nerve supply anterior rami of spinal nerve T9-T12
Levator Cosotrum
tips of c7-T11-tps
subajecent ribs b/w tubercle and anglle
elevates rib below with weak inpsiration
dorsal rami of c8 t11