Unit One Posterior Axioapp Muscles

Question 1

What are the three distinct groups of shoulder muscles

Answer 1

Anterior axioappendicular, posterior axioappendicular and scapulohumeral muscles

Question 2

The anterior axioappendicular muscles move what

Answer 2

Pectoral girdle

Question 3

The posterior axioappendicular muscles attach

Answer 3

The upper limb to the skeleton of the trunk

Question 4

The scapulohumeral muscles act on the

Answer 4

Glenohumeral joint

Question 5

The posterior axioappendicular muscles contain how many muscles

Answer 5

5

Question 6

What are the posterior axioappendicular muscles

Answer 6

Trapezius, latissimus dorsi, levator scapulae, rhomboid major and minor

Question 7

What are the superficial posterior axioappendicular muscles

Answer 7

Latissimus dorsi and trapezius

Question 8

What are the deep posterior axioappendicular muscles

Answer 8

Levator scapulae and rhomboid major and minor

Question 9

What are the muscles of the scapulohumeral muscles

Answer 9

Deltoid, teres major, supraspinatus, infraspinatus, teres minor and subscapularis

Question 10

The scapulohumeral muscles contain how many muscles

Answer 10

6

Question 11

What is the large flat muscle that attaches the pectoral girdle to the trunk

Answer 11

Trapezius

Question 12

What muscle raises the trunk to the arm (pull ups)

Answer 12

Latissimus dorsi

Question 13

Weakness in this muscle significantly impairs climbing

Answer 13

Latissimus dorsi

Question 14

What is the test for latissimus dorsi muscle

Answer 14

Abduct arm to 90 degrees, then adduct against resistance

Question 15

The triangle of auscultation is found where

Answer 15

Between the trapezius, latissimus dorsi and medial border of the scapula

Question 16

The floor of the triangle of auscultation is formed by

Answer 16

Rhomboid major

Question 17

The triangle of auscultation covers the intercostal space of ribs

Answer 17

6 and 7

Question 18

Triangle of auscultation allows for

Answer 18

Hearing breathing sounds of lungs

Question 19

Test for rhomboid major and minor

Answer 19

Place hands posteriorly on hips and push elbows back against resistance

Question 20

The posterior axioappendicular muscles serve to

Answer 20

Position and fix the base of the upper extremity (scapula and clavicle) so that the limb can function

Question 21

The superficial and deeps muscles of the posterior axioappendicular muscles function in antagonistic and synergistic groups to position what

Answer 21

Scapuloclavicular unit

Question 22

Independent innervation of synergistic groups of the posterior axioappendicular results in

Answer 22

Little reduction of function in the face of an isolated nerve injury

Question 23

What is the exception with the independent innervation of synergistic groups in the posterior axioappendicular

Answer 23

Superior trapezius by CN XI and upward rotation of the lateral angle of the scapula

Question 24

Test of deltoid

Answer 24

Resist abduction at greater than 15 degrees

Question 25

What muscle forms the posterior inferior border of the axilla

Answer 25

Teres major

Question 26

Test of teres major

Answer 26

Palpation of muscle during adduction of the abducted arm

Question 27

How does the axillary nerve cause a risk in fractures, dislocations and traction injuries

Answer 27

Passes around surgical neck of humerus

Question 28

Rotator cuff muscles are what type of shoulder muscles

Answer 28

Intrinsic

Question 29

The rotator cuff muscles form a musculotendinous cuff that blends with what

Answer 29

Glenohumeral joint capsule

Question 30

Tonic contraction of the rotator cuff muscles helps keep what in place and where

Answer 30

Keep the humeral head in the glenoid cavity

Question 31

What are the rotator cuff muscles

Answer 31

Supraspinatus, infraspinatus, teres minor and subscapularis

Question 32

Test of infraspinatus muscle

Answer 32

Flex at the elbow, adduct arm, and laterally rotate against resistance

Question 33

Teres minor is hidden by what muscle

Answer 33

Deltoid

Question 34

Rotator cuff muscles suffer wear and tear to

Answer 34

The tendons especially the supraspinatus

Question 35

Rotator cuff often injured in what athletes

Answer 35

Throwing

Question 36

Uneducated, ill informed, weekend athletes, body builders, weight lifters often injure rotator cuff due to

Answer 36

Neglect

Question 37

Stage one of rotator cuff injuries

Answer 37

Edema and hemorrhage (most common in <25 yo)

Question 38

Stage two of rotator cuff injury

Answer 38

Fibrosis and tendinitis (age 25 to 40)

Question 39

Stage three of rotator cuff injury

Answer 39

Tears of cuff (older than 50)