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Chiro Essentials Anatomy > Muscles > Flashcards

Flashcards in Muscles Deck (115)
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1

Sternocleidomastoid origin?

Mastoid process and lateral third of superior nuchal line

2

Sternocleidomastoid insertion?

manubrium of sternum and medial 1/3 of clavicle

3

Sternocleidomastoid action?

tilts head toward the shoulder on the same side
Rotates head to the opposite side

4

Sternocleidomastoid innervation

Spinal part of CN XI and ventral rami of C2/3 (proprioception)

5

Trapezius origin?

Medial 1/3 of superior nuchal line, external occipital protuberance, ligamentum nuchae, SP C7, all T vertebrae

6

Trapezius insertion?

lateral 1/3 of clavicle, medial aspect of acromion and spine of scapula

7

Trapezius action?

Shrug shoulder
Retract/rtn of scapula

8

Trapezius innervation?

Spinal part CN XI (motor) and br C3/4 (proprioception)

9

Latissimus dorsi origin?

TL fascia, SP lower T/L, last 4 rib, slip from inf angle of scapula

10

Latissimus dorsi insertion?

floor of the bicipital groove

11

Latissimus dorsi innervation?

Dorsal scapular nerve (C5)

12

Latissimus dorsi action?

elevates scapula

13

Levator scapulae origin?

Post tub of TVP C1-4

14

Levator scapulae insertion?

Superior angle to root of spine of scapula

15

Levator scapulae innervation?

dorsal scapular N (C5)

16

Levator scapulae action?

elevates scapula

17

Anterior scalene origin?

Ant tubercles TVP C3-6

18

Anterior scalene insertion?

Scalene tubercle on sup aspect of 1st rib

19

Anterior scalene innervation?

Ant rami C4-6

20

Anterior scalene action?

ipsilateral lateral flexion of neck
Accessory muscle of respiration

21

Medial scalene origin?

Post tubercles of TVP C-7

22

Medial scalene insertion?

Upper aspect 1st rib (btw groove for subclavian A and scalene tubercle)

23

Medial scalene innervation?

And rami C3-7

24

Medial scalene action?

ipsilateral lateral flexion of neck

25

Serratus anterior origin?

lateral aspects upper 8 ribs

26

Serratus anterior insertion?

Medial aspect of inferior surface of scapula

27

Serratus anterior innervation?

Long thoracic N (C5-7)

28

Serratus anterior action?

Draws scapula forward and rotates scapula

29

Deltoid origin?

lateral 1/3 clavicle, lateral aspect of acromion, spine of scapula

30

Deltoid insertion?

deltoid tubercle of humerus