Superficial Back

Question 1

The muscles that connect the trunk to the upper extremity include:

Answer 1

The latissimus dorsi, levator scapulae, pectoralis major, pectoralis minor, rhomboids, serratus anterior, subclavius, and trapezius,

Question 2

latissimus dorsi is responsible for ___, ____, and ____ of the humerus

Answer 2

adduction, extension, medial rotation

Question 3

latissimus dorsi is innervated by ___, originiating from the ___ spinal nerves

Answer 3

thoracodorsal nerve, C6-8

Question 4

The latissimus dorsi muscle attaches from the _____, _______, and _______ TO the ________.

Answer 4

Lower thoracic spinous processes, thoracolumbar fascia, and illiac crest TO the floor of the intertubercular sculus of the humerus

Question 5

levator scapulae is innervated by ___, located at ___

Answer 5

dorsal scapular nerve, C4-5

Question 6

the pectoralis major is responsible for humeral ____, _____, ____, and (___)

Answer 6

adduction, flexion, medial rotation (sternocostal portion: assists w humeral extension)

Question 7

The levator scapulae attaches from the _______ TO the ______ ______

Answer 7

Transverse processes of C1-C4 TO the superior angle and superomedial border of the scapula

Question 8

the____ muscle is innervated by the lateral and medial pectoral nerves

Answer 8

pectoralis major

Question 9

the pectoralis minor muscle is responsible for ____, and ____

Answer 9

anterior tilt of scapula, depression of shoulder in forced inspiration

Question 10

The pectoralis major attaches from the _____, _____, and ______ TO the _________

Answer 10

From the clavicle, costal cartilages, sternum TO the lateral lip of the intertubercular sulcus of the humerus

Question 11

innervataion of the pectoralis major’s clavicular head originates at ___ and its sternocostal head originates at ___

Answer 11

C5-7, C8-T1

Question 12

the pectoralis minor muscle is innervated by the ____ and ____ nerves, originating from ____ spinal nerves

Answer 12

lateral pectoral, medial pectoral, C5-T1

Question 13

The pectoralis minor attaches from the _____ TO the _____

Answer 13

from outer surfaces of ribs 3-5 TO the coracoid process

Question 14

_____ are responsible for scapular retraction, elevation, and downward rotation

Answer 14

the rhomboid muscle

Question 15

The rhomoid major attaches from the _____ TO the ______

Answer 15

spinous processes T2-T5 TO the medial border of the scapula

Question 16

The rhomboid minor attaches from the ____ and _____ TO the ____.

Answer 16

from ligamentum nuchae and spinous processes C7-T1 TO the medial border of the scapula

Question 17

the rhomboids are innervated by the ___, originating from the ___ spinal nerves, with sensory branches directly from ___

Answer 17

dorsal scapular nerve, C4-5, C3-4

Question 18

serratus anterior is responsible for scapular ___ and ___

Answer 18

protraction, upward rotation

Question 19

The serratus anterior attaches from the _____ & _____ TO the _____.

Answer 19

from the outer surfaces & superior borders of upper 8-10 ribs TO the costal surface of the medial border of the scapula.

Question 20

____ is innervated by the long thoracic nerve, located at ___

Answer 20

serratus anterior, C5-7

Question 21

____ is responsible for clavicle depression and stabilization

Answer 21

subclavius

Question 22

The subclavius attaches from the ____ & ____ to the ______

Answer 22

from 1st rib & cartilage TO the undersurface of the clavicle

Question 23

the subclavius muscle is innervated by ____, located at ___

Answer 23

subclavian nerve, C5-6

Question 24

The trapezius attaches from the _____, ______, ______, ______ TO the ____, ____, _____.

Answer 24

from the superior nuchal line, external occipital protuberance, and cervical & thoracic spinous processes TO the clavicle, acromion & scapular spine

Question 25

trapezius is responsible for scapular ___, ___, ____, and ____

Answer 25

elevation, depression, retraction, upward rotation

Question 26

trapezius motor innervation from ___ and sensory innervation from ___

Answer 26

accessory nerve/cranial nerve 11, C3-4

Question 27

___ muscles attach to both axial and appendicular skeletons

Answer 27

extrinsic

Question 28

extrinsic muscles are innervated by ___, except trapezius which is innervated by the ___

Answer 28

anterior rami of spinal nerve, cranial nerve

Question 29

List the intermediate extrinsic back muscles

Answer 29

serratus posterior superior and serratus posterior inferior

Question 30

extrinsic muscles are responsible for ___ , ___, and ___

Answer 30

limb movement, respiration, proprioception

Question 31

List the superficial intrinsic back muscles

Answer 31

Splenius Capitis and Splenius Cervicis

Question 32

List the intermediate intrinsic muscles of the back

Answer 32

Erector spinae: spinalis, longissimus, and iliocostalis

Question 33

intrinsic muscles of the back attach only to the ___ skeleton

Answer 33

axial

Question 34

intrinsic muscles are responsible for ___ and ___

Answer 34

vertebral column movement, stabilization

Question 35

List the deep intrinsic muscles of the back

Answer 35

Transversospinales: semispinalis capitis, multifidus, and rotatores

Question 36

___ muscles are innervated by the posterior rami of spinal nerves

Answer 36

intrinsic

Question 37

C5 dermatome is associated with ___ region of the skin

Answer 37

deltoid tuberosity through medial aspect of upper arm

Question 38

The T1 spinal segment/nerve is associated with which area of skin?

Answer 38

The medial forearm

Question 39

The skin of the medial forearm is associated with which spinal segment/nerve?

Answer 39

T1

Question 40

The C8 spinal segment/nerve is associated with which region of skin?

Answer 40

The pinky finger

Question 41

___ dermatome is associated with the region of skin on the thumb

Answer 41

C6

Question 42

The skin of the pinky finger is associated with which spinal segment/nerve?

Answer 42

C8

Question 43

C7 dermatome is associated with ___ region of the skin

Answer 43

index finger