Exam 2

Question 1

forming the rounded contour of the shoulder
•Forms a “v” shape at the insertion point of the Deltoid Tuberosity
•3 segments
–Anterior
–Middle
–Posterior
•All abduct the shoulder

Answer 1

Deltoids

Question 2

Origin
–Clavicle (Anterior Lateral Third)
•Insertion
–Deltoid Tuberosity (Humerus)
•Action
–Abduct shoulder
–Flex Shoulder
–Medial Rotates Shoulder
–Horizontally Adduct Shoulder
•Innervation
–Axillary

Answer 2

Anterior Deltoid

Question 3

Origin
–Acromion process and Spine of Scapula
•Insertion
–Deltoid Tuberosity (Humerus)
•Action
–Abducts Shoulder
•Innervation
–Axillary

Answer 3

Middle Deltoid

Question 4

Origin
–Spine of Scapula
•Insertion
–Deltoid Tuberosity (Humerus)
•Action
–Abduct shoulder
–Extends Shoulder
–Laterally Rotates Shoulder
–Horizontally Abduct Shoulder

Answer 4

Posterior Deltoid

Question 5

extends longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula
•Divided into 3 groups:
–Upper fibers
•Descending part
•Supports weight of arm
–Middle fibers
•Transverse part
•Retracts the scapulae
–Lower fibers
•Ascending part
•Medially rotates (IR) and depresses scapula

Answer 5

Trapezius

Question 6

Origin
–External Occipital protuberance C7-T12
•Insertion
–Lateral 1/3 clavicle
–Acromion
–Scapular spine
•Action
–Upper:  
•Extend/laterally flex head
•rotate to opposite side,
•elevation, upward rotation

Answer 6

Trapezius

Question 7

Origin
–Lower vertebrae
–Lower ribs
–Iliac Crests
–Sacrum
•Insertion
–Bicipital Grove (humerus)
•Action
–Extend shoulder
–Adduct Shoulder
–Medially Rotates
•Innervation

Answer 7

Latissimus Dorsi

Question 8

•Origin
Inferior angle
Lower 1/3 of 
•Insertion 
Lesser tubercle (humerus)
•Action
–Extend shoulder
–Adducts shoulder
–Medially rotates
•Innervation
–Lower Subscapular

Answer 8

Teres Major

Question 9

•Origin
–Supraspinus Fossa of Scapula
•Insertion
–Greater Tubercle (Humerus)
•Action
–Abduct Shoulder
•Innervation
–Subscapular

Answer 9

Supraspinatus

Question 10

Origin
–Infraspinus Fossa of Scapula
•Insertion
–Greater Tubercle (Humerus)
•Action
–External Rotation
–Adduct Shoulder
•Innervation
–subscapular

Answer 10

Infraspinatus

Question 11

Origin
–Lateral Border of Scapula (upper 2/3)
•Insertion
–Greater Tubercle (Humerus)
•Action
–External Rotation
–Adduct Shoulder
–Stabilize head of humerus
•Innervation
–Axillary

Answer 11

Teres Minor

Question 12

Origin
–Subscapular Fossa of Scapula
•Insertion
–Lesser Tubercle (Humerus)
•Action
–Internally Rotation
–Stabilize head of humerus
•Innervation
–Upper and lower subscapular

Answer 12

Subscapularis

Question 13

Origin
•Spinous Processes of T2 to T5
•Insertion
•Medial border, below scapular spine
•Action
•Elevation (S/T)
•Retraction (S/T)
•Downward rotation (S/T)
•Innervation
•Dorsal Scapular

Answer 13

Rhomboid Major

Question 14

Origin
•Spinous Processes of C7 to T1
•Insertion
•Medial border at scapular spine
•Action
•Elevation (S/T)
•Retraction (S/T)
•Downward rotation (S/T)
•Innervation
•Dorsal Scapular

Answer 14

Rhomboid Minor

Question 15

Origin
•Transverse processes C1 to C4
•Insertion
•Medial border above scapular spine
•Action
•Elevation (S/T)
•Retration (S/T)
•Innervation
•Cervical
•Dorsal scapular

Answer 15

Levator Scapulae

Question 16

Origin
•Ribs 1-9    
•Insertion
•Medial border of scapula
•Action
•Protraction (S/T)
•Upward rotation (S/T)
•Innervation
•Long Thoracic

Answer 16

Serratus Anterior

Question 17

Origin
•Clavicular “upper fibers”: Medial half of clavicle
•Sternal “lower fibers”: Sternum & cartilage of ribs 1-6
•Insertion
•Bicipital groove (humerus)
•Action
•Upper fibers: Flexion, adduction, IR, horizontal flexion (adduction) (G/H)
•Lower fibers: Extension, adduction, IR (G/H)
•Innervation
•Lateral/medial pectoral

Answer 17

Pectoralis Major

Question 18

Origin
•Ribs 3-5
•Insertion
•Coracoid Process
•Action
•Depression (S/T)
•Protraction (S/T)
•Downward rotation (S/T)
•Innervation
•Medial pectoral

Answer 18

Pectoralis Minor

Question 19

Origin
•1st rib
•Insertion
•Middle 1/3 of clavicle (inferior side)
•Action
•Depress clavicle
•Stabilizes SC Joint
•Innervation
•Subclavian

Answer 19

Subclavius

Question 20

Origin
•Long head: supraglenoid tubercle
•Short head:  coracoid process
•Insertion
•Radial Tuberosity
•Action
•Flexion (G/H)
•Also acts on the elbow, which
we will discuss next chapter 
•Innervation
•Musculocutaneous

Answer 20

Biceps Brachii

Question 21

Origin
•Long head: Infraglenoid Tubercle
•Lateral head: Upper half of posterior humerus
•Medial head: Lower half of posterior humerus
•Insertion
•Olecranon Process
•Action
•Long head: Extension (G/H)
•Another elbow mover, which we will discuss next chapter
•Innervation
•Radial

Answer 21

Triceps

Question 22

Origin
•Coracoid process
•Insertion
•Middle 1/3 of the humerus
•Action
•Flexion (G/H)
•Adduction (G/H)
•Innervation
•Musculocutaneous

Answer 22

Coracobrachialis

Question 23

Clavicle
–Scapula
–Sternum

Answer 23

Bones and Landmarks

•Shoulder Girdle

Question 24

Sternal Extremity
•Acromial Extremity
•Conoid Tubercle are associated with ?

Answer 24

Shoulder Girdle: Clavicle

Question 25

``` Vertebral Border (Medial Margin) •Axillary Border (Later Margin) •Superior Border •Superior Angle •Inferior Angle are associated with ? ```

Answer 25

Shoulder Girdle: Scapula

Question 26

Coracoid Process •Acromion Process •Scapular (Superior) Notch are associated with ?

Answer 26

Shoulder Girdle: Scapula

Question 27

Glenoid Cavity •Subscapular Fossa •Supraglenoid Tubercle •Infraglenoid Tubercle are associated with ?

Answer 27

Shoulder Girdle: Scapula

Question 28

Supraspinatus Fossa •Spine •Infraspinatus fossa are associated with ?

Answer 28

Posterior Scapula

Question 29

Jugular Notch •Manubrium •Body •Xiphoid process are associated with ?

Answer 29

Shoulder Girdle: Sternum

Question 30

Glenohumeral Acromioclavicular Sternoclavicular are ?

Answer 30

Joints

Question 31

Glenohumeral •synovial ball-and-socket style diarthroidal joint •joint is formed from the combination of the humeral head and the glenoid fossa of the scapula •is considered to be the most mobile and least stable joint in the body is what type of joint ?

Answer 31

Glenohumeral

Question 32

junction between the acromion and clavicle •Synovial, Gliding/Plane Joint •allows the ability to raise the arm above the head

Answer 32

Acromioclavicular

Question 33

Sternal end of clavicle and sternum •plane style synovial joint, and has a fibrocartilage joint disk •Ligaments are very strong, often resulting a fracture of the clavicle before a dislocation of the SC joint

Answer 33

Sternoclavicular

Question 34

``` Coracohumeral Glenohumeral Acromioclavicular Coracoacromial Coracoclavicular Transverse Humeral Glenoid Labrum Joint Capsule are not tendons but are ? ```

Answer 34

Ligaments

Question 35

Coracoid process to greater tubercle of the humerus

Answer 35

Coracohumeral

Question 36

``` Humerus to glenoid –Main source of stability •Superior •Middle •inferior ```

Answer 36

Glenohumeral

Question 37

Acromion to clavicle

Answer 37

Acromioclavicular

Question 38

coracoid to the acromion

Answer 38

Coracoacromial

Question 39

Clavicle to coracoid process –keep the scapula attached to the clavicle •Trapeziod •Conoid

Answer 39

Coracoclavicular