Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Trunk and Abdomen > Muscles of the Trunk > Flashcards

Muscles of the Trunk Flashcards

1
Q

Superficial Vertebral muscles

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Erector Spinae - Iliocostalis SA&IA

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Erector Spinae - Iliocostalis N&A

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Erector Spinae - Longissimus SA&IA

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Erector Spinae - Longissimus N&A

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Erector Spinae - Spinalis SA&IA

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Erector Spinae - Spinalis N&A

A

N - Dorsal Rami
A - Trunk extension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Multisegmental - Semispinalis SA&IA

A

SA - Spinous process of cervical segments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Multisegmental - Semispinalis I&A

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Multisegmental - Multifidus I&A

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Multisegmental - Rotatores SA&IA

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Multisegmental - Rotatores I&A

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Unisegmental - Interspinal

A

Connect consecutive spinous processes for extension ( C&L)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Unisegmental - Intertransverse

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Cervical - Sub-Occipitals

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Cervical - Sternocleidomastoid SA&IA

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Cervical - Sternocleidomastoid N&A

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Cervical - Anterior Scalene SA&IA

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Cervical - Anterior Scalene N&A

A

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

22
Q

Cervical - Middle Scalene SA&IA

A

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

23
Q

Cervical - Middle Scalene N&A

A

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

24
Q

What muscles compress the Brachial plexus

A

Anterior and Middle Scalene

25
Q

Cervical - Posterior Scalene SA&IA

A

SA - Posterior transv C4-6
IA - External border of 2nd rib

26
Q

Cervical Posterior Scalene N&A

A

N - Ventral Rami of cervical spinal nerves
A - Elev 2nd rib & lateral flex of neck

27
Q

Thoracic - External Intercostals

A

Run - hands in pockets (down/med)
A - elev rib in inspiration

28
Q

Thoracic - Internal Intercostals

A

Run - hands in back pockets (down/lat)
A - Elev rib in inspiration

29
Q

Thoracic - Innermost Intercostals

A

Run- hands in back pockets (down/lat)
A - Elev rib in inspiration

30
Q

Thoracic - Transversus Thoracis

A

Run - upper costal cartilage to lower post sternum
A - pulls ribs down in forced expiration

31
Q

Thoracic - Levatores Costarum

A

Run - Transv C7 & thoracic ribs, btwn tubercles and angles
A - pulls ribs up in inspiration

32
Q

Thoracic - Serratus Posterior Superior

A

Run - Spinous process of Cervical & Thoracic to angles
A - Elev ribs in inspiration

33
Q

Diaphragm - SA&IA

A

SA - Medial & lateral arcuate ligament, internal costal cartilage, xiphoid process
IA - all fibers converge on a central tendon

34
Q

Thoracic - Serratus Posterior Inferior

A

Run - Spinous process of Cervical & Thoracic to angles
A - ribs down and back in inspiration

35
Q

Diaphragm - N&A

A

N - Phrenic Nerve
A - Important in inspiration

36
Q

Rectus Abdominis - O&I

A

O - Pubic crest & symphysis
I - Costal cartilages of 5-7 & xiphoid process

37
Q

Rectus Abdominis - N&A

A

N - Anterior Rami of inf 6 Thoracic nerves
A - Flex vertebral column

38
Q

What is the Rectus Sheath

A

Aponeurotic sheath that encloses the rectus abdominis - meets at the midline (linea alba)

39
Q

Anterior Rectus Sheath

A

Extension of external abd oblique & part of int abd oblique

40
Q

Posterior Rectus Sheath

A

Extension of transv abd & part of int abd oblique

41
Q

Arcuate Line

A

Marks lower limit of posterior sheath, inferior iliac crest, no posterior sheath below arcuate line

42
Q

Lumbar Lateral Wall - Transversus Abdominis

A

Run - from inguinal ligament & iliac crest & costal cartilages 7-12
A - support and compress abdominal viscera; forced expiration

43
Q

Lumbar Lateral Wall - Internal Oblique

A

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
Q

Lumbar Lateral Wall - External Oblique

A

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
Q

Lumbar Lateral Wall - Iliacus - O&I

A

O - Iliac fossa & ala of sacrum
I - Lesser Trochanter

46
Q

Lumbar Lateral Wall - Iliacus - N&A

A

N - Femoral nerve
A - Flex thigh & hip

47
Q

Posterior Lumbar - Psoas Major SA&IA

A

SA - Transverse process T12 - L5
IA - Lesser Trochanter

48
Q

Posterior Lumbar - Psoas Major N&A

A

N - Ventral Rami of L2-4
A - Flex thigh & ipsilateral flex w/ distal extremity is fixed

49
Q

Posterior Lumbar - Psoas Minor N&A

A

N- Ventral ramus of lumbar spine
A - Very weak trunk flexion

50
Q

Posterior Lumbar - Quadratus Lumborum SA&IA

A

SA - Inferior border of 12th rib
IA - Iliac crest

51
Q

Posterior Lumbar - Quadratus Lumborum N&A

A

N - Ventral Rami
A - Ipsilateral side bending & bilateral extension

52
Q

Diaphragm Hiatuses

A

3 - Caval (IVC & R phrenic nerve)
- Esophageal (esophagus & vagus nerve)
- Aortic ( Aorta, thoracic duct)

Trunk and Abdomen (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions