Muscle anatomy Flashcards


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created 6 years ago by jateiarushing
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Upper, middle, and lower Trapezius/ Levator Scapulae/ Anterior, middle, and posterior Deltoid/ Masseter/ Digastric/ Mylohyoid/ Sternohyoid/ Sternocleidomastoid/ Pectoralis major
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College: First year
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lab vocab
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1

Upper Trapezius promixal attachment

Occiput and nucal liagments

2

Upper Trapezius Distal attachment

Clavicle/ acromion process

3

Upper Trapezius Actions

Elevates & upward rotation scapula

4

Upper Trapezius Nerve

Spinal Accessory CN XI C3, C4

5

Middle Trapezius proximal attachment

Spinous process C7-T3

6

Middle Trapezius Distal attachment

Spine scapula

7

Middle Trapezius Actions

Retract (ADD) scapula

8

Middle Trapezius Nerve

Spinal accessory. CN XI C3,C4

9

Lower Trapezius proximal attachment

Spinous process C7-T12

10

Lower Trapezius Distal attachment

Scapular spine

11

Lower Trapezius Actions

Depresses & upward rotation scapula

12

Lower Trapezius Nerve

Spinal accessory CN XI C3,C4

13

Levator Scapulae proximal attachment

Transverse process C1-4

14

Levator Scapulae Distal attachment

Scapula

15

Levator Scapulae Actions

Elevates & downward rotates scapula

16

Levator Scapulae Nerve

Dorsal scapular nerve

17

Anterior Deltoid proximal attachment

Clavicle

18

Anterior Deltoid distal attachment

Deltiod tuberosity

19

Anterior Deltoid Action

Flexes, Internal rotation, horizontal (ADD) humerus at shoulder

20

Anterior Deltoid Nerve

Axillary

21

Middle Deltoid proximal attachment

Acromion process

22

Middle Deltoid Distal attachment

Deltoid tuberosity

23

Middle Deltoid Actions

ABD humerus at shoulder

24

Middle Deltoid Nerve

Axillary

25

Posterior Deltoid proximal attachment

Scapular spine

26

Posterior Deltoid Distal attachment

Deltoid tuberosity

27

Posterior Deltoid Actions

Extension, Hyperextension, External rotation ABD humerus at shoulder

28

Posterior Deltoid nerve

Axillary

29

Masseter proximal attachment

Zygomatic arch

30

Masseter distal attachment

Mandibular Ramus

31

Masseter actions

Elevates mandible

32

Masseter nerve

Trigeminal mandibular branch

33

Digastric proximal attachment

Anterior belly: Digastric fossa of mandible

posterior belly: mastoid process

34

Diagastric distal attachment

Hyoid bone

35

Diagastric actions

Elevates larynx & depresses mandible

36

Digastric nerve

Anterior: Trigeminal

Posterior: facial

37

Mylohyoid proximal attachment

Mandible Mylohyoid line

38

Mylohyoid distal attachment

Hyoid

39

Mylohyoid actions

Depresses mandible & elevates floor of mouth

40

Mylohyoid nerve

Trigeminal- mandibular branch

41

Sternohyoid proximal attachment

Sternum manubrium/ clavicle

42

Sternohyoid distal attachment

Hyoid

43

Sternohyoid actions

Depresses hyoid & larynx

44

Sternohyoid nerve

Hypoglossal & C1-3

45

Sternocleidomastoid proximal attachment

Sternum manubrium/ clavicle

46

Sternocleidomastoid distal attachment

Mastoid region

47

Sternocleidomastoid actions

Bilaterally- flex neck; unilaterally bends head & rotates face contralaterally

48

Sternocleidomastoid nerve

Spinal accessory CN XI

49

Pectoralis major proximal attachment

Clavicle/ sternum/ ribs 2-6

50

Pectoralis major distal attachment

Intertuberacular groove

51

Pectoralis major actions

ADD, horizontal ADD, internal rotation humerus at shoulder

52

Pectoralis major nerve

Medial and lateral pectoral nerves