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Trunk and Abdomen > Muscles of the Trunk > Flashcards

Muscles of the Trunk Flashcards

(52 cards)

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1
Q

Superficial Vertebral muscles

A

Trapezius, Latissimus Dorsi, Rhomboids, Levator Scapulae, Serratus Posterior Superior+Inferior

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2
Q

Erector Spinae - Iliocostalis SA&IA

A

SA - Transv process lower cervical spine
IA - ES aponeurosis into post ilium

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3
Q

Erector Spinae - Iliocostalis N&A

A

N - Dorsal Rami
A - Trunk extension & ipsilateral side bending

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4
Q

Erector Spinae - Longissimus SA&IA

A

SA - Mastoid process & transv process of upper cervical vertebrae
IA - Forms Pars Lumborum w/ spinalis & iliocostalis

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5
Q

Erector Spinae - Longissimus N&A

A

N - Dorsal Rami
A - Trunk extension & ipsilateral side bending

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6
Q

Erector Spinae - Spinalis SA&IA

A

SA - Nuchal line & spinous process of cervical vertebrae
IA - Joins longissimus & iliocostalis @ posterior ilium

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7
Q

Erector Spinae - Spinalis N&A

A

N - Dorsal Rami
A - Trunk extension

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8
Q

Multisegmental - Semispinalis SA&IA

A

SA - Spinous process of cervical segments

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9
Q

Multisegmental - Semispinalis I&A

A

I - Dorsal spinal nerves
A - Trunk extension & contralateral rotation

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10
Q

Multisegmental - Multifidus SA&IA

A

SA - Spinous process of cervical segments
IA - Transv process of 2-4; mamillary process of L and S spine

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11
Q

Multisegmental - Multifidus I&A

A

I - Dorsal primary spinal nerves
A - Trunk extension & contralateral rotation & stabilization

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12
Q

Multisegmental - Rotatores SA&IA

A

SA - Spinous process of vertebrae
IA - Junct of transv & lamina

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13
Q

Multisegmental - Rotatores I&A

A

I - Dorsal primary nerves
A - Trunk extension & contralateral rotation

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14
Q

Unisegmental - Interspinal

A

Connect consecutive spinous processes for extension ( C&L)

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15
Q

Unisegmental - Intertransverse

A

Connect consecutive spinous processes for side bending, aid in lateral flexion, stabilization

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16
Q

Cervical - Splenius Capitis & Cervicis N&A

A

N - Dorsal rami of mid cervical spinal nerves
A - unilaterally - lateral flexion & rotate head and neck
- bilaterally - extend head and neck

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17
Q

Cervical - Sub-Occipitals

A

Ram’s horn; w/ Rectus capitis post maj &min + Obliquus Capitis sup & inf

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18
Q

Cervical - Sternocleidomastoid SA&IA

A

SA - Mastoid process & lateral nuchal line
IA - 2 heads - Sternal: ant manubrium
- Clavicular: Medial 1/2 clav

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19
Q

Cervical - Sternocleidomastoid N&A

A

N - CN XI
A - Ipsilateral side bending neck, contralateral rotation

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20
Q

Cervical - Anterior Scalene SA&IA

A

SA - Transv process of C3-C6
IA - 1st rib

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21
Q

Cervical - Anterior Scalene N&A

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A

N - Ventral Rami C4-6
A - Elev 1st rib, lateral flex & rotate neck

22
Q

Cervical - Middle Scalene SA&IA

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A

SA - Posterior transv C4-7
IA - Superior surface 1st rib

23
Q

Cervical - Middle Scalene N&A

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A

N - Ventral Rami of cervical spinal nerves
A - Elev 1st rib & lateral neck flex

24
Q

What muscles compress the Brachial plexus

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A

Anterior and Middle Scalene

25
Cervical - Posterior Scalene SA&IA
SA - Posterior transv C4-6 IA - External border of 2nd rib
26
Cervical Posterior Scalene N&A
N - Ventral Rami of cervical spinal nerves A - Elev 2nd rib & lateral flex of neck
27
Thoracic - External Intercostals
Run - hands in pockets (down/med) A - elev rib in inspiration
28
Thoracic - Internal Intercostals
Run - hands in back pockets (down/lat) A - Elev rib in inspiration
29
Thoracic - Innermost Intercostals
Run- hands in back pockets (down/lat) A - Elev rib in inspiration
30
Thoracic - Transversus Thoracis
Run - upper costal cartilage to lower post sternum A - pulls ribs down in forced expiration
31
Thoracic - Levatores Costarum
Run - Transv C7 & thoracic ribs, btwn tubercles and angles A - pulls ribs up in inspiration
32
Thoracic - Serratus Posterior Superior
Run - Spinous process of Cervical & Thoracic to angles A - Elev ribs in inspiration
33
Diaphragm - SA&IA
SA - Medial & lateral arcuate ligament, internal costal cartilage, xiphoid process IA - all fibers converge on a central tendon
34
Thoracic - Serratus Posterior Inferior
Run - Spinous process of Cervical & Thoracic to angles A - ribs down and back in inspiration
35
Diaphragm - N&A
N - Phrenic Nerve A - Important in inspiration
36
Rectus Abdominis - O&I
O - Pubic crest & symphysis I - Costal cartilages of 5-7 & xiphoid process
37
Rectus Abdominis - N&A
N - Anterior Rami of inf 6 Thoracic nerves A - Flex vertebral column
38
What is the Rectus Sheath
Aponeurotic sheath that encloses the rectus abdominis - meets at the midline (linea alba)
39
Anterior Rectus Sheath
Extension of external abd oblique & part of int abd oblique
40
Posterior Rectus Sheath
Extension of transv abd & part of int abd oblique
41
Arcuate Line
Marks lower limit of posterior sheath, inferior iliac crest, no posterior sheath below arcuate line
42
Lumbar Lateral Wall - Transversus Abdominis
Run - from inguinal ligament & iliac crest & costal cartilages 7-12 A - support and compress abdominal viscera; forced expiration
43
Lumbar Lateral Wall - Internal Oblique
Run - from inguinal ligament & iliac crest to inf ribs 10-12 (back pocket) A - compress & support viscera, support lumbar, expiration, bilateral lateral flexion and ipsilateral rotation
44
Lumbar Lateral Wall - External Oblique
Run - from ribs 5-12, blends into linea alba ( hands in pockets) A - support & compress viscera, expiration, bilateral vertebrae flex - Lateral fibers - bilateral - post pelvis rotation. - unilateral - lat vertebrae flex - Anterior fibers - unilateral flex & rotate ipsilateral vertebrae
45
Lumbar Lateral Wall - Iliacus - O&I
O - Iliac fossa & ala of sacrum I - Lesser Trochanter
46
Lumbar Lateral Wall - Iliacus - N&A
N - Femoral nerve A - Flex thigh & hip
47
Posterior Lumbar - Psoas Major SA&IA
SA - Transverse process T12 - L5 IA - Lesser Trochanter
48
Posterior Lumbar - Psoas Major N&A
N - Ventral Rami of L2-4 A - Flex thigh & ipsilateral flex w/ distal extremity is fixed
49
Posterior Lumbar - Psoas Minor N&A
N- Ventral ramus of lumbar spine A - Very weak trunk flexion
50
Posterior Lumbar - Quadratus Lumborum SA&IA
SA - Inferior border of 12th rib IA - Iliac crest
51
Posterior Lumbar - Quadratus Lumborum N&A
N - Ventral Rami A - Ipsilateral side bending & bilateral extension
52
Diaphragm Hiatuses
3 - Caval (IVC & R phrenic nerve) - Esophageal (esophagus & vagus nerve) - Aortic ( Aorta, thoracic duct)

Trunk and Abdomen (4 decks)

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