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30 Cards in this Set
- Front
- Back
Name 8 muscles involved with inspiration
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Pectoralis minor
Scalenes (3) Sternocleidomastoid Diaphragm External intercostal Serratus posterior superior |
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Name 6 muscles involved with expiration
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Abdominals (forced exhale)
Internal Intercostal Serratus Posterior Inferior |
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Name the muscles of pulmonary respiration (10) (not including abdominals)
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Diaphragm
Internal Intercostal External Intercostal Serratus Posterior Superior Serratus Posterior Inferior Pectoralis Minor Scalenes (3) Sternocleidomastoid (3 scalenes;2 serratus; 2 intercostals; diaphragm, pec minor and SCM) |
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When are the abdominal muscles involved in breathing?
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In forced expiration
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Diaphragm means what?
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"a partition"
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The Diaphragm divides what two cavities?
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Abdominal and Thoracic cavities
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The Diaphragm has what three portions because of its origins?
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lumbar
costal sternal |
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What muscle is the prime mover of inspiration (inhaling)?
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Diaphragm
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Diaphragm ORIGIN (3)=
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L1-L3
lower six costal cartilages (drumhead) xiphoid process |
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Diaphragm INSERTION (1)
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central tendon (cloverleaf-shaped aponeurosis)
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The fiber direction of the Internal Intercostals is the same as which abdominal muscle?
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Internal Oblique
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The Internal Intercostals help with inspiration or expiration primarily? How?
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They depress the ribcage during expiration and maintain intercostal spaces.
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The External Intercostals help with inspiration or expiration primarily? How
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They elevate the ribcage during inspiration and maintain intercostal spaces.
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During inspiration, does the ribcage go up or down?
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up
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During expiration, does the ribcage go up or down?
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down
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Internal Intercostal ORIGIN=
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superior border of rib (below)
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Internal Intercostal INSERTION=
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inferior border of rib (above)
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The fiber direction of the External Intercostals is the same as what abdominal muscle?
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External Oblique
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External Intercostal ORIGIN=
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inferior border of rib (above)
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External Intercostal INSERTION=
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superior border of rib (below)
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Which two muscles aid in the process of labored breathing and are located on the back?
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Serratus Posterior Superior and Serratus Posterior Inferior
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What are the deepest intercostal muscles called? What is their main purpose?
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Internal Intercostals which depress the ribcage when we exhale
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What does "serratus" mean?
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Notched or jagged, as a saw
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Are the Serratus Posterior Superior muscles located beneath or above the rhomboids?
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Deep to the rhomboids
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Serratus Posterior Superior ORIGIN (2)
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nuchal ligament
SP of C7-T3 (spinous processes of C7 and upper thoracic vertebrae) |
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Serratus Posterior Superior INSERTION (1)
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ribs 2- 5 (posterior surfaces)
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Serratus Posterior Inferior has what main action?
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Depresses ribs during expiration (ribs 9-12 are the insertions)
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Serratus Posterior Inferior ORIGIN=
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SP of T11-L2
spinous processes of vertebrae Thoracic 11 down to Lumbar 2. |
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The Intercostal muscle which inserts on the rib below is the...
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External Intercostal
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The Intercostal muscle which inserts on the rib above is the...
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Internal Intercostal
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