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ANAT 200 - AXIAL MUSCULATURE > BACK MUSCLES/INTERCOSTAL CONTRACTION > Flashcards

BACK MUSCLES/INTERCOSTAL CONTRACTION Flashcards

1
Q

Transversospinal Group

A

Delicate adjustments at zygapophyseal joints of vertebrae (can be source of back pain)

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2
Q

Which four muscles erect posture of the back?

A
  1. Longissimus
  2. Spinalis
  3. IIiocostalis
  4. Erector spinae
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3
Q

What do the four muscles that erect posture of the back do?

A

Extensors of back (vital to maintain upright posture)

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4
Q

Intercostal muscles mm (3 different layers)

A

Most superficial; elevators of ribs during respiration (inhalation phase)

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5
Q

What happens during the inhalation phase?

A

Contraction of intercostal mm. produces elevation of ribs; increases volume of thoracic cavity

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ANAT 200 - AXIAL MUSCULATURE (11 decks)

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