Brainscape's Knowledge GenomeTM

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


See full index

Muscles > Spine & Thorax > Flashcards

Spine & Thorax Flashcards

1
Q

Erector Spinae Group
(Spinalis, Longissimus, Iliocostalis)

A

O: common tendon (thoracolumbar fascia) that attaches to posterior surface of sacrum, iliac crest, SPs of lumbar and last two thoracic vertebrae

I: various attachments at posterior ribs, SPs and TVPs of thoracic and cervical vertebrae, mastoid process

A: unilaterally: ipsilateral lateral flex spine
bilaterally: extend spine

N: spinal

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

Multifidi

A

O: sacrum, TVPs of lumbar through cervical vertebrae

I: SPs of lumbar through C2 vertebrae (span 2-4 vertebrae)

A: unilaterally: contralateral rotation spine
bilaterally: extend spine

N: spinal

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

Rotatores

A

O: TVPs of lumbar through cervical vertebrae

I: SPs of lumbar through C2 vertebrae (span 1-2 vertebrae)

A: unilaterally: contralateral rotation spine
bilaterally: extend spine

N: spinal

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

Semispinalis Capitis

A

O: TVPs of C4-T5

I: between superior and inferior nuchal lines of occuput

A: extend spine and head

N: cervical

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

Splenius Capitis

A

O: inferior half of ligamentum nuchae and SPs of C7-T4

I: mastoid process and lateral portion of superior nuchal line

A: unilaterally: ipsilateral rotation neck, ipsilateral lateral flex neck
bilaterally: extend neck

N: cervical

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

Splenius Cervicis

A

O: SPs of T3-T6

I: TVPs of C1-C3

A: unilaterally: ipsilateral rotation neck, ipsilateral lateral flex neck
bilaterally: extend neck

N: cervical

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

Rectus Capitis Posterior Major
(Suboccipital)

A

O: SP of C2

I: inferior nuchal line of occiput

A: rock and tilt head back into extension ipsilateral rotation head

N: suboccipital

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

Rectus Capitis Posterior Minor
(Suboccipital)

A

O: tubercle of posterior arch of C1

I: inferior nuchal line of occiput

A: rock and tilt head back into extension

N: suboccipital

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

Oblique Capitis Superior
(Suboccipital)

A

O: TVP of C1

I: between the nuchal lines of occiput

A: rock and tilt head back into extension, ipsilateral laterally flex head

N: suboccipital

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Oblique Capitis Inferior
(Suboccipital)

A

O: SP of C2

I: TVP of C1

A: ipsilateral rotation head, ipsilateral lateral flex head

N: suboccipital

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

Quadratus Lumborum

A

O: posterior iliac crest

I: 12th rib, TVPs of L1-L4

A: unilaterally: ipsilateral hip hiking, ipsilateral lateral flex thorax
bilaterally: fix 12th rib during forced inhalation and exhalation, assist extend spine

N: lumbar plexus T12, L1, 2, 3

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

Rectus Abdominis

A

O: pubic crest, pubic symphysis

I: cartilage of ribs 5, 6, 7, xiphoid process

A: flex spine, anterior tilt pelvis

N: T5, 6, T7-11, T12, ventral rami

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

External Oblique

A

O: external surface of ribs 5-12

I: anterior part of iliac crest, rectus sheath to linea alba

A: unilaterally: ipsilateral laterally flex spine, contralateral rotation spine
bilaterally: flex spine, compress abdominal contents

N: (T5, 6), T7-11, T12

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

Internal Oblique

A

O: lateral inguinal ligament, iliax crest, thoracolumbar fascia

I: internal surface of lower 3 ribs, rectus sheath to linea alba

A: unilaterally: ipsilateral laterally flex spine, ipsilateral rotation spine
bilaterally: flex spine, compress abdominal contents

N: T7, 8, T9-12, L1, iliohypogastric and ilioinguinal, ventral rami

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

Transverse Abdominis

A

O: lateral inguinal ligament, iliac crest, thoracolumbar fascia, interal surface of lower 6 ribs

I: rectus sheath to linea alba

A: compress abdominal contents

N: T7-12, L1, iliohypogastric and ilioinguinal, ventral divisions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Diaphragm

A

O: costal attachment: inner surface of lower 6 ribs
lumbar attachment: upper two or three lumbar vertebrae
sternal attachment: inner part of xiphoid process

I: central tendon

A: draw down central tendon, inhalation

N: phrenic C3, 4, 5

17
Q

External Intercostals

A

O: inferior border of rib above

I: superior border of rib below

A: draw ribs superiorly for inhalation

N: thoracic

18
Q

Internal Intercostals

A

O: inferior border of rib above

I: superior border of rib below

A: draw ribs inferiorly for exhalation

N: thoracic

19
Q

Serratus Posterior Superior

A

O: SPs of C7-T3

I: posterior surface of ribs 2-5

A: elevate ribs during inhalation

N: T1, 2, 3, 4

20
Q

Serratus Posterior Inferior

A

O: SPs of T12-L3

I: posterior surface of ribs 9-12

A: depress runs during exhalation

N: T9, 10, 11, (12)

21
Q

Intertransversarii

A

O & I: cervical: spanning TVPs of C2-C7
lumbar: spanning TVPs of L1-L5

A: unilaterally: ipsilateral laterally flex spine
bilaterally: extend spine

N: spinal

22
Q

Interspinalis

A

O & I: cervical:: spanning SPs of C2-T3
lumbar: spanning SPs of T12-L5

A: unilaterally: ipsilateral laterally flex spine
bilaterally: extend spine

N: spinal

23
Q

Pyramidalis

A

O: public symphysis

I: linea alba

A: tenses linea alba

N: 12th thoracic nerve

Muscles (5 decks)

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