Deep Back Muscles Flashcards Preview

Spot Test 2- Lower Limb > Deep Back Muscles > Flashcards

Flashcards in Deep Back Muscles Deck (23):
1

Muscles in the intermediate group of the back?

Serratus Posterior Superior
Serratus Posterior Inferior

2

General function of Intermediate back muscles

Weak, accessory muscles for respiration

3

Origin of Serratus Posterior Superior

Ligamentum Nuchae
Spinous Processes C7-T3

4

Insertion of Serratus Posterior Superior

Ribs 2-5

5

Innervation of Serratus Posterior Superior

Anterior Rami of thoracic nerves T2-T5

6

Function of Serratus Posterior Superior

Elevates ribs 2-5

7

Origin of Serratus Posterior Inferior

Spinous Processes T11 to L3

8

Insertion of Serratus Posterior Inferior

Ribs 9-12

9

Innervation of Serratus Posterior Inferior

Anterior Rami of thoracic nerves T9-T12

10

Function of Serratus Posterior Inferior

Depresses ribs 9-12

11

General functions of intrinsic back muscles

Extension and rotation of vertebral column and neck

12

Innervation of Deep/Intrinsic Back Muscles

Posterior Rami of Spinal Nerves

13

Most superficial muscles in Intrinsic layer (Spinotransversales group)

Splenius Capitiis
Splenius Cervicis

14

Origin of Splenius Capitis

Mastoid Process
Lateral Superior Nuchal Line

15

Insertion of Splenius Capitis

Ligamentum Nuchae
Spinous Processes C7-T4

16

Origin of Splenius Cervicis

Transverse Processes C1-C3

17

Insertion of Splenius Cervicis

Spinous Processes T3-T6

18

Functions of spinotransversales group

Extension of neck (acting together)
Rotation of neck (unilateral contraction)

19

Muscles in Erector Spinae/ Intermediate intrinsic muscles group

Spinalis (most medial)
Longissimus
Iliocostalis (most lateral)

20

Function of Erector Spinae muscles

Primary extensors of the Vertebral Column

21

Muscles in Transversospinales/ Deep Intrinsic muscles muscles group

Semispinalis
Multifidis (long and fat)
Rotares (long and thin)

22

General origins/insertions of Transversospinales muscles

Spinous- Transverse processes of vertebrae

23

Function of Transversospinales muscles

Extension and rotation of Vertebral Column