Back Origins/ Insertions

Question 1

Trapezius

Answer 1

Origin:
Upper: The inion, the medial ⅓ of the superior medial line of the occiput, the nuchal lig, and the spinous process of C7
Middle: spinous processes of T1-T5
Lower: spinous processes of T6-T12

Insertion:
Upper: lateral ⅓ of the clavicle and the acromion process of the scapula
Middle: acromian process and spine of the scapula
Lower: the tubercle at the base of the spine of the scapula

Question 2

Serratus Posterior Inferior

Answer 2

Origin: Spinous processes of T11-L2

Insertion: Ribs 9-12

Question 3

Serratus Posterior Superior

Answer 3

Origin: Spinous processes of C7-T3

Insertion: Ribs 2-5

Question 4

Rectus Capitis Posterior Minor

Answer 4

Origin: the posterior tubercle of the atlas (C1)

Insertion: The medial ½ of the inferior nuchal line of the occiput

Question 5

Rectus Capitis Posterior Major

Answer 5

Origin: The spinous process of the axis (C2)

Insertion: The lateral ½ of the inferior nuchal line of the occiput

Question 6

Obliquus Capitis Superior

Answer 6

Origin: The transverse process of the atlas (C1)

Insertion: The occiput between the superior and inferior nuchal lines

Question 7

Obliquus Capitis Inferior

Answer 7

Origin: The spinous process of the axis (C2)

Insertion: Transverse process of the atlas (C1)

Question 8

Latissimus Dorsi

Answer 8

Origin: Spinous processes of T7-L5, posterior sacrum, and the posterior iliac crest; all via the thoracolumbar fascia and the lowest three to four ribs and the inferior angle of the scapula

Insertion: Medial lip of the bicipital groove of the humerus

Question 9

Intertransversarii

Answer 9

Origin: from a TVP

Insertion: TVP directly superior

Question 10

Interspinales

Answer 10

Origin: from a spinous process

Insertion: Spinous process directly superior

Question 11

Lavatores Costarum

Answer 11

Origin: TVP of C7-CT11

Insertion: Ribs 1-12 inferiorly

Question 12

Rotatores

Answer 12

Origin: TVP inferiorly

Insertion: Lamina (superiorly 1-2, levels superior to the inferior attachment)

Question 13

Multifidus

Answer 13

Origin: Posterior sacrum, PSIS, posterior sacroiliac lig. and L5-C4 vertebrae

Insertion: Spinous processes of vertebrae 3-4 segmental levels superior to the inferior attachment

Question 14

Semispinalis

Answer 14

Origin: TVP of C7-T10 and the articular processes of C4-C6

Insertion: Spinous processes of C2-T4 and the occipital bone (5-6 segmental levels superior to the inferior attachment)