OINA for the posterior and anterior Flashcards Preview

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Flashcards in OINA for the posterior and anterior Deck (22)
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1

Trapezius

Origin – external occipital protuberance, ligamentum nuchae, spinous processes of
C7 to T12

2. Insertion – posterior border of lateral third of the clavicle, acromion process, and
spine of the scapula

3. Innervation – spinal root of the accessory n. CN XI

4. Action – elevation from the upper fibers, retraction from the middle fibers and
depression from the lower fibers

2

Latissimus Dorsi

O – spinous processes of the vertebrae T7-L5, thoracolumbar fascia, iliac crest,
inferior 3 to 4 ribs and inferior angle of the scapula

2. I – medial lip of intertubercular groove of the humerus (anterior to teres major)

3. N – thoracodorsal n.

4. A – extends, adducts and medially rotates the humerus, elevates the body when
climbing

3

Levator Scapulae

O – posterior tubercles of transverse processes of C1 to C4 vertebrae

2. I – superior part of the medial border of the scapula

3. N – dorsal scapular nerve (C4-5)

4. A – elevates scapula, rotates head to the same side

4

Rhomboid major

O – spinous process of T2 to T5 vertebrae

2. I – medial border of the scapula from the level of the spine to the inferior angle

3. N – dorsal scapular n. (C4-5)

4. A – retracts and downwardly rotates the scapula

5

Rhomboid minor

O – spinous processes of C7 and T1 and the ligamentum nuchae

2. I – medial border of the scapula from the level of the spine to the superior angle

3. N – dorsal scapular n. (C4-5)

4. A – retracts and downwardly rotates the scapula

6

Serratus Posterior Superior

0 – ligamentum nuchae, spinous process of C7 thru T3

2. I – 2nd to 5th ribs

3. N – ventral primary rami of first 3 to 4 thoracic nerves

4. A – elevates the superior 4 ribs to increase the size of the thorax

7

Serratus Posterior Inferior

0 – spinous processes of T11 thru L2

2. I – the inferior three or four ribs

3. N – ventral primary rami of last 4 thoracic nerves

4. A – depress the inferior 3 to 4 ribs to prevent superior pull by the diaphragm

8

Splenius capitis

0 – ligamentum nuchae and spinous processes of C7 to T3

ii. I – mastoid process, occipital bone

iii. N – dorsal primary rami

iv. A – rotate the head and neck to the same side; neck and head extension

9

Splenius Cervicis

O – Spinous processes of T3 to T6

ii. I – Transverse processes of C1 to C4

iii. N – dorsal primary rami

iv. A – rotate the head and neck to the same side; extend head and neck

10

The Erector Spinae Muscles

Origin – broad tendon that attaches to the iliac crest, sacrum, sacroiliac
ligaments, and sacral and inferior lumbar spinous processes

ii. Innervation – dorsal primary rami

11

Spinalis

Origin – spinous processes of T11-L2

2. Insertion – spinous process of the upper 4 to 8 thoracic vertebrae

3. Action – extensors of the vertebral column

12

Semispinalis

Action – Semispinalis capitis bilaterally extends the head, and unilaterally it rotates the head to the same side

v. Innervation – dorsal rami of the cervical spinal nerves

13

Multifidus

O: the vertebral arches

I: spinous processes,
spanning 1 to 3 vertebrae

N: dorsal rami of the spinal nerves

Action – unilaterally – flexes the trunk laterally, rotates vertebra to the
opposite side. Bilaterally – extends the trunk

14

Rotatores

O: the transverse process of one vertebrae

I: the base
of the spinous process of the superior vertebrae

iv. Innervation – dorsal rami of spinal nerves

iii. Action – rotation of the superior vertebrae to opposite side
(Functionally, they probably serve a proprioceptive role rather than biomechanical role)

15

External abdominal oblique

0 – external surface of the 5th to 12th ribs

ii) I – linea alba, pubic crest, iliac crest, pubic symphysis

iii) N – Inferior 5 thoracic nerves and subcostal nerve(T12) and iliohypogastric

iv) A – flex and rotate trunk, laterally rotate the trunk, compress abdominal contents

16

Internal abdominal oblique

O – Thoracolumbar fascia, anterior iliac crest, lateral half of inguinal ligament

ii) I – linea alba, pubic crest, ribs 10-12 inferior surface

iii) N – lower 5 thoracic nerves, subcostal, iliohypogastric

iv) A – flex and rotate the trunk, laterally rotate the trunk, compress abdominal contents

17

Transversus abdominis

0 – thoracolumbar fascia, iliac crest, lateral one third of the inguinal ligament, internal
surface of costal cartilage's 7 to 12

ii) I – linea alba, pubic crest, pubic symphysis

iii) N – lower 5 thoracic nerves, subcostal, iliohypogastric

iv) A – compress and support abdominal viscera

18

Rectus abdominis

0 – pubic symphysis, pubic crest

ii) I – xiphoid process, 5th and 7th costal cartilage's

iii) N – lower 5 thoracic nerves, subcostal, iliohypogastric

iv) A – flexes trunk and tenses anterior abdominal wall

19

Psoas major

0 - transverse processes, bodies and intervertebral discs of T12-L5

(2) I - lesser trochanter with iliacus

(3) N - ventral primary rami of L1-L3

(4) A - flexion of the thigh, lateral flexion of the trunk and flexion of the trunk

20

Psoas minor

0 - bodies of vertebrae T12 and L 1 and the disc in-between

(2) I- pubic bone

(3) N - ventral primary ramus L 1

(4) A - flexion of the pelvis and vertebral column

21

Iliacus

0 - iliac fossa

(2) I - lesser trochanter with psoas major

(3) N - femoral nerve

(4) A - flexion of the thigh

22

Quadratus lumborum

0 - iliac crest, iliolumbar ligament, and transverse processes of lower Lumbar vertebrae

(2) I - rib 12, transverse process of upper Lumbar vertebrae

(3) N - subcostal and upper lumbar ventral primary rami

(4) A - flexion of the trunk laterally, extend vertebral column, elevate the hip, stabilize 12
rib against inspiration