joints and upper limb for anatomy final

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1

synovial joint

articular capsule, articular cartilage, joint cavity, synovial fluid

can be plane, hinge, saddle, condyloid, ball and socket and pivot

allows movement!

2

fibrous joint

sutures, sydesmosis, interosseous membrane, Gomphosis

little or no movement

3

cartilaginous

line by hyaline or fibrocartilage

primary or synchondroses: diaphyseal-epiphyseal junction

secondary: pubic symphysis

symphyses, intervertebral discs

small amount of movement allowed here

4

which vertebrae does inferior angle of the scapula line with?

T7

5

which vertebrae does the spine of scapula line with?

about T3

6

pectoralis major attachments

medial half of clavicle

sternum, costal cartilages, external oblique aponeurosis

7

innervation of pectoralis major

medial and lateral pectoral nerves

C6-C8 spinal nerves

8

actions of pectoralis major

adductor and medial rotator of humerus

9

which vein sits in the deltopectoral groove?

cephalic vein

10

attachments for pectoralis minor

ribs 3-5

coracoid process

DOES NOT ATTACH TO HUMERUS

11

innervation of pectoralis minor

medial pectoral nerve

C8, T1 spinal nerve

12

actions of pectoralis minor

stabilizes scapula

scapular protraction

13

attachments for subclavius

first rib/costal cartilage

inferior surface of clavicle

14

innervation of subclavius

nerve to subclavius

C5 spinal nerve

15

actions of subclavius

anchors and depresses the clavicle- resists sternoclavicular joint seperation

protects subclavian structures

16

attachments of serratus anterior

ribs 1-8

medial border of anterior scapula

17

innervation of serratus anterior

long thoracic nerve

C6, C7 spinal nerve

18

actions of serratus anterior

strong protractor of scapula

upward rotation of the scapula

19

what type of joint is the sternoclavicular joint and what does it join? what ligaments does it involve?

saddle type synovial joint

articulation between sternal end of clavicle and 1st costal cartilage

anterior and posterior sternoclavicular ligaments, costoclavicular ligament

20

acromioclavicular joint articulation? ligaments?

articulation between clavicle and scapula

acromioclavicular ligament

coracoclavicular ligament- trapezoid and conoid ligaments

21

what are the 5 axillary lymph nodes?

pectoral, subscapular, humeral, central, and apical

22

4 muscles of rotator cuff

supraspinatus, infraspinatus, subscapularis, and teres minor

23

attachments for latissimus dorsi

spinous processes T7-T12, thoracolumbar fascia, iliac crest, lower ribs

floor intertubercular groove of humerus

24

innervation of latissimus dorsi

thoracodorsal nerve

C6, C7 spinal nerves

25

actions of latissimus dorsi

shoulder extension, shoulder adduction, shoulder medial rotation, scapular retraction

26

attachments for levator scapulae

posterior tubercles of transverse processes C1-C4

medial border of scapula superior to spine of scapula

27

innervation of levator scapulae

dorsal scapular nerve C5

posterior rami C3-C4

28

levator scapulae actions

elevation of scapula

downward rotation of glenoid fossa

29

attachments for rhomboid minor

nuchal ligament, spinous process C7, T1

medial border of scapula at the spine of the scapula

30

attachments of rhomboid major

spinous processes T2-T5

medial border of scapula inferior to spine of scapula

31

innervation of rhomboids

dorsal scapular nerve

C5 spinal nerve

32

actions of rhomboids

retraction of the scapula

downward rotation of the glenoid cavity

33

deltoid attachments

lateral third of clavicle, acromion process, lateral third of spine of scapula

deltoid tuberosity of the humerus

34

innervation of deltoid

axillary nerve

C5 spinal nerve

35

actions of deltoid

shoulder abduction

shoulder flexion/medial rotation

shoulder extension/lateral rotation

36

attachments of teres major

posterolateral surface of scapula near inferior angle

medial lip of intertubercular sulcus

37

innervation of teres major

lower subscapular nerve

C6 spinal nerve

38

actions of teres major

extends, adducts, and medially rotates the humerus- it's a weak extensor

39

attachments for teres minor

lateral border of scapula

lower facet on greater tubercle of the humerus

40

innervation of teres minor

axillary nerve

C5 spinal nerve

41

actions of teres minor

extension, adduction and lateral rotation of the humerus

42

attachments for infraspinatus

infraspinous fossa of the scapula

middle facet on greater tubercle of the humerus

43

innervation of infraspinatus

suprascapular nerve

C5 spinal nerve

44

actions of infraspinatus

extension, adduction and lateral rotation of the humerus (same actions as teres minor)

45

boundaries of quadrangular space and what's found there

teres minor, teres major, long head of triceps brachii, and lateral head of triceps brachii

axillary nerve and posterior humeral circumflex artery

46

attachments of subscapularis

subscapular fossa of scapula

lesser tubercle of the humerus

47

innervation of subscapularis

upper and lower subscapular nerves

C6 spinal nerve

48

actions of subscapularis

medial rotation of the humerus

49

supraspinatus attachments

supraspinous fossa

superior facet on the greater tubercle of the humerus

50

innervation of supraspinatus

suprascapular nerve

C5 spinal nerve

51

action of supraspinatus

abduction of the humerus at the glenohumeral joint