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Thoracic Wall > Muscles Of the Thoracic Wall > Flashcards

Muscles Of the Thoracic Wall Flashcards

1
Q

Mnemonics for muscles of the thoracic work

A

S_serratus posterior superior
S_ serratus posterior inferior
L_levator costarum
E_external intercostal
I_ internal intercostal
I_ innermost intercostal
S_ Subcostal
T_Transversus thoracis

Ssleiist

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2
Q

Superior attachment of serratus posterior muscle

A

Nuchal ligament
Spinous process of c7_T3 vertebrae

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3
Q

Inferior attachment of serratus posterior superior

A

Superior borders of 2nd _ 5th ribs

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4
Q

Innervation of serratus anterior superior

A

2nd _5th intercostal nerves

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5
Q

Action of serratus posterior superior

A

Elevates the ribs

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6
Q

Superior attachment of serratus posterior inferior

A

Spinous process of T11_L2 vertebra

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7
Q

Inferior attachment of serratus posterior inferior

A

Inferior border of ribs 8_12

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8
Q

Innervation of serratus anterior inferior

A

Anterior rami of T9_12 thoracic spinal nerve

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9
Q

Superior attachment of levator costarum

A

Transverse processes of C7_T11

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10
Q

Inferior attachment of levator costarum

A

Subjacent ribs between tubercle and angle

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11
Q

Innervation of levator costarum

A

Posterior rami of C8_T11 ribs

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12
Q

Functions of levator costarum

A

Elevates ribs

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13
Q

Functions of serratus posterior inferior

A

Depresses ribs

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14
Q

Superior attachment of external intercostal, internal intercostal and innermost intercostal ribs

A

Inferior borders of ribs

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15
Q

Inferior attachment of external intercostal, internal intercostal and innermost intercostal

A

Superior border of ribs below

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16
Q

Innervation of intercostal muscle

A

Intercostal nerve

17
Q

Functions of external intercostal muscle

A

Elevates ribs during forced inspiration

18
Q

Functions of internal intercostal and innermost intercostal muscle

A

Interosseous part. Depresses ribs during forced inspiration
Interchondral part : elevates ribs during forced inspiration

19
Q

Superior attachment of subcostal muscle

A

Internal surface of lower ribs near their angles

20
Q

Inferior attachment of subcostal muscle

A

Superior borders of 2nd or 3rd ribs below

21
Q

Innervation of subcostal nerve

A

Intercostal nerve

22
Q

Functions of subcostal muscle

A

Interosseous part : depresses ribs during forced respiration
Interchondral part: elevates ribs during forced respiration

23
Q

Superior attachment of transversus thoracis

A

Posterior surface of lower sternum

24
Q

Inferior attachment of transversus thoracis

A

Internal surface of costal cartilages 2_6

25
Q

Main action of transversus thoracis

A

Weakly depresses ribs

26
Q

What are the regions of the vertebra

A

Cervical
Thoracic
Lumbar
Sacrum
Coccyx

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Thoracic Wall (2 decks)

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