Muscles For Respiration Flashcards
Diaphragm (origin)
Xiphoid process
Lower 6 costal cartilages
L1-L3 vertebrae
Diaphragm (insertion)
Central tendon (tip of dome)
Diaphragm (action)
Draws central tendon down and forward during inspiration
Diaphragm (nerve)
Phrenic nerve
Diaphragm (blood)
Pericardiacophrenic
Musculophrenic
Superior and inferior phrenic arteries
Internal intercostals (origin)
Lower border of rib (11 pairs)
Internal intercostals (insertion)
Upper border of rib below origin
Internal intercostals (action)
Breathing out
Internal intercostals (nerve)
Intercostal nerves
Internal intercostals (blood)
Posterior and anterior intercostal arteries
External intercostals (origin)
Lower border of rib (11 pairs)
External intercostals (insertion)
Upper border of rib below origin
External intercostals (action)
Lift the ribs up when you breathe in
External intercostals (blood)
Posterior and anterior intercostal arteries
Serratus posterior superior (origin)
Ligamentum nuchae
Spinous processes of C7-T3
Serratus posterior superior (insertion)
Superior aspect of ribs 2-4
Serratus posterior superior (action)
Elevation of ribs
Serratus posterior superior (nerve)
Ventral rami of upper thoracic nerves
Serratus posterior superior (blood)
Posterior intercostal arteries
Serratus posterior inferior (origin)
Spinous processes of T11-L2
Serratus posterior inferior (insertion)
Inferior aspect of ribs 9-12
Serratus posterior inferior (action)
Depresses ribs
Serratus posterior inferior (nerve)
Ventral rami of lower thoracic nerves
Serratus posterior inferior (blood)
Posterior intercostal arteries
Levatores costarum (origin)
Transverse processes C7-T11
Levatores costarum (insertion)
Corresponding rib at superior border
Between costal angle and tubercle
Levatores costarum (action)
Assists with deep inspiration
Levatores costarum (nerve)
Dorsal rami
Levatores costarum (blood)
Posterior intercostal arteries
Pectoralis minor (origin)
Ribs 3-5
Pectoralis minor (insertion)
Corocoid process of scapula
Pectoralis minor (action)
Depression of shoulders
Downward rotation of scapula
Pectoralis minor (nerve)
Medial pectoral nerve
Pectoralis minor (nerve)
Medial pectoral nerve
Pectoralis minor (blood)
Pectoral branch of thoracoacromial and intercostal lateral thoracic arteries