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Lower Myology > Quiz 3 > Flashcards

Quiz 3 Flashcards

1
Q

Do muscles of inspiration elevate or depress the chest?

A

Elevate

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2
Q

What is the prime mover of inspiration?

A

Diaphragm

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3
Q

What are the 3 parts of the diaphragm?

A

Costal, Sternal, and Crural

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4
Q

What is the sternal origination?

A

Dorsal xiphoid process

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5
Q

What is the costal origination?

A

Inner lower 6 ribs and cartiledge

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6
Q

What is the crural origination?

A

Anterior vertebral bodies of L1, L2/L3

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7
Q

What is the insertion for all of the diaphragm?

A

Central tendon

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8
Q

What is the innervation for the diaphragm?

A

Phrenic nerve

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9
Q

How many pairs of the intercostals?

A

11

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10
Q

Which direction to the fibers of the external intercostals run?

A

down & in - hands in pockets

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11
Q

What is the origination of external intercostals?

A

Lower border of superior rib

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12
Q

What is the insertion of external intercostals?

A

Upper border of inferior rib

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13
Q

What is the innveration of the external intercostals?

A

Intercostal nerves

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14
Q

Which direction do the fibers of the internal intercostals run?

A

Up and In

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15
Q

What is the origination of interal intercostals?

A

Superior border of inferior rib

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16
Q

What is the insertion of the interal instercostals?

A

Inferior border of superior rib

17
Q

What are the 3 groups of erector spinae muscles?

A

Iliocostals, Longissimus, and Spinalis

18
Q

What are the 3 division of the iliocostals?

A

Lumborum, thoracis, and cervicis

19
Q

What is the innervation for all of the erector spinae muscles?

A

Posterior spinal nerve - dorsal ramus

20
Q

What is the action of the bilateral erector spinae?

A

Extend spine

21
Q

What is the action of the unilateral erector spinae?

A

Lateral flexion of spine

22
Q

ILS is in what direction of the spine?

A

Lateral to medial

Lower Myology (2 decks)

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