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Question 1

Trapezius attachments (7)

Answer 1

-Superior nuchal line
-External Occipital protuberance
-Ligamentum nuchae
-Cervical & thoracic spinous
-Clavicle
-Acromion
-Scapular spine
processes

Question 2

Trapezius actions

Answer 2

● Scapular elevation
● Scapular depression
● Scapular retraction
● Upwards rotation

Question 3

Trapezius innervations

Answer 3

● Accessory nerve (CNXI)
motor
● C3-4 sensory

Question 4

What is the most inferior region for the trapezius

Answer 4

T-12

Question 5

descending trapezius
fibers ___________
shoulder

Answer 5

Elevate

Question 6

Ascending trapezius
fibers ____________
shoulder

Answer 6

Depress

Question 7

Latissimus dorsi attatchments (4)

Answer 7

● Lower thoracic spinous
processes
● Thoracolumbar fascia
● Iliac crest
● Floor of the intertubercular
sulcus of the humerus

Question 8

Latissimus dorsi actions

Answer 8

● Adduction of humerus
● Extension of humerus
● Medial rotation of humerus

Question 9

Latissimus dorsi innervation

Answer 9

● Thoracodorsal nerve (C6-8)

Question 10

Rhomboids attatchments

Answer 10

● Spinous processes C7-T5
● Ligamentum nuchae
● Medial border of scapula

Question 11

Rhomboid actions

Answer 11

● Scapular elevation
● Scapular retraction
● Downward rotation

Question 12

Rhomboids innervation

Answer 12

● Dorsal scapular nerve (C4-5)
● C3-4 sensory

Question 13

Levator scapulae attatchments

Answer 13

● Transverse processes C1-
C4
● Superior angle
● Superomedial border of the scapula

Question 14

Levator scapulae actions

Answer 14

● Scapular elevation
● Downward rotation (works with rhomboids)

Question 15

Levator scapulae innervations

Answer 15

● Dorsal scapular nerve (C4-5)
● C3-4 sensory

Question 16

Serratus Posterior
Superior & Inferior attatchments

Answer 16

(superior)
● Spinous process of C7-T3
● Inferior border of ribs 2-5

(inferior)
-Spinous processes of T11-L2
-Inferior rib border of 9-12

Question 17

Serratus Posterior
Superior & Inferior innervations

Answer 17

Intercostal nerve T1-T4
(superior)
● Intercostal nerve T9-12
(inferior)

Question 18

Serratus Posterior
Superior & Inferior action

Answer 18

Proprioception

Question 19

What makes up Erector Spinae muscles

Answer 19

• Spinalis
• Longissimus
• Iliocostalis

Question 20

Splenius Capitis attatchments

Answer 20

● Spinous processes C7 to T6
● Transverse processes of C1
to C3
● Ligamentum nuchae
● Mastoid process

Question 21

Splenius Capitis actions

Answer 21

● Extension
● Lateral flexion
● Ipsilateral rotation

Question 22

Splenius Capitis innervation

Answer 22

Dorsal rami

Question 23

Semispinalis Capitis attatchments

Answer 23

-Superior articular processes of C4-C7 vertebrae; transverse processes of T1-T6 vertebrae.

-Area located between superior and inferior nuchal lines of occipital bone.

Question 24

Semispinalis Capitis actions

Answer 24

● Extension
● Contralateral rotation

Question 25

Semispinalis Capitis innervation

Answer 25

● Dorsal rami

Question 26

What 3 muscles boarder the triangle auscultation

Answer 26

Trapezius Lattismus dorsi Rhomboids

Question 27

List the extrinsic superficial layer muscles of the back

Answer 27

Trapezius Latissimus Dorsi Levator scapulae rhomboids

Question 28

Other than the trapezius, the superficial extrinsic muscles are innervated by what

Answer 28

ventral rami of spinal cord

Question 29

what are the boarders of the triangle of auscultation

Answer 29

Inferior border - latissimus Doris Medial boarder - trapezius Later border- rhomboids / scapula

Question 30

Extrinsic intermediate layer muscles

Answer 30

serratus posterior superior and inferior

Question 31

Extrinsic intermediate layers of muscles function is what , and what are they innervated by

Answer 31

1) proprioception and respiration 2) Ventral rami of the spinal cord

Question 32

What are the intrinsic muscles at the superficial layer

Answer 32

splenius muscles - splenius capitis (more medial and connects to skull) splenius cervicis (more lateral and connects to the cervical spine

Question 33

intrinsic muscles at superficial layer are innervated by what

Answer 33

dorsal rami

Question 34

What are the intrinsic intermediate layers muscles

Answer 34

Erector spinae "I love spaghetti" - works from lateral to medial - spinalis -longissimus -iliocostalis

Question 35

intrinsic muscles at intermediate layer are innervated by what

Answer 35

dorsal rami

Question 36

What are the deep layers of intrinsic back muscles

Answer 36

Semispinalis multifidus and rotatores innervated by dorsal rami