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Flashcards in Rotator cuff muscles Deck (20)
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1

What is the origin and insertion of the supraspinatus?

supraspinous fossa to greater tubercle

2

what is the action of the Supraspinatus M.?

initiate abduction of arm from 0-15 degrees

3

What innervates the Spraspinatus M?

suprascapular nerve

4

What is the origin insertion of infraspinatus?

infraspinous fossa to greater turbcle

5

What is the action of infraspinatus M?

main lateral rotator

6

What is the innervation of the infraspinatous M.?

suprascapular nerve

7

What are the attachments of teres minor?

bottom part of infraspinous fossa to greater turbcle

8

What is the function of trees minor?

assist in infraspinatous lateral rotation

9

What is the innervation of the teres minor?

axillary N

10

What is attachments of subscapularis M?

subscapular fossa to lesser turbcle

11

What is the function of subscapularis?

medial rotator of the arm

12

What nerves innervate subsacpularis?

upper and lower sub scapular

13

What are the rotator cup muscles?

Supraspinatous
infraspinatous
teres minor
subscapularis

14

what are the rotator cup muscles help with?

helps protects the glenoidhummeral joint from dislocating

15

how does the joint stops from popping out the glenoid fossa?

synovial fluid is water based forces pulling the head out is balanced by the negative pressure on the inside

16

What is a rotator cuff tear?

it is tearing of any of the rotator cuff muscles but the supraspinatous is most common

17

What is impingement syndrome?

raising the arm causes the greater turbucle to impinge the supraspinatous or biceps brachii long head tendon

18

What is the attachments of teres major M.

inferior part of the lateral border of scapula to interturbuclar groove (next to the lats)
not a rotator cuff muscle

19

What is the action of teres major?

extension
adduction
medial rotation of arm
(sane as lats but not as strong)

20

What is the innervation of teres Major?

lower sub scapular nerve