Shoulder

Question 1

Where is the spine of the scapula?

Answer 1

Posterior side of scapula.

Question 2

What is the coracoid process.

Answer 2

Process on anterior side of scapula, finger like projection slightly inferior to the clavicle.

Question 3

What is the acromion?

Answer 3

The process on the posterior superior and lateral part of the scapula.

Question 4

Describe the posterior scapula.

Answer 4

Spine of scapula.
Infraspinous fossa
Supraspinous fossa
Medial, Lateral ad superior Border

Question 5

Describe the glenohumeral joint capsule.

Answer 5

Synovial ball and socket.
Between head of humerus & glenoid fossa.
loose capsule for movement.

Question 6

List the ligaments of the shoulder.

Answer 6

Coracoclavicular.
Coracoacromial.
Superior glenohumeral
Middle glenohumeral
Inferior glenohumeral

Question 7

Describe the Rotator cuff

Answer 7

4 combined tendons from 4 muscles.
Sits on head of humerus.
dynamic ligament.
main force holding head of humerus in place.
Rotators of the shoulder.

Question 8

List the scapular motions.

Answer 8

Retraction and protraction
Elevation and depression
Medial and lateral rotation.

Question 9

List the Shoulder motions.

Answer 9

Shoulder Flexion
Shoulder Extension
Shoulder Abduction
Shoulder Adduction
Shoulder Rotation (Internal and external)

Question 10

Describe the Trapizius.

Answer 10

Origin: Skull cervical & thoracic vertebrae
Insertion: Spine of scapula & Clavicle
Action: Scapular elevation, depression, retraction & rotation.
Nerve Supply: Accessory.

Question 11

Describe the Levatator Scapulae

Answer 11

Origin: C1 - C4
Insertion: Superior vertebral border, scapula
Action: Elevates scapular
Nerve Supply: C3 - 5, Dorsal scapular

Question 12

Describe rhomboids minor

Answer 12

Origin: C7 - T1
Insertion: Vertebral border of scapula
Action: adduct/retract scapula
Nerve Supply: Dorsal scapular

Question 13

Describe rhomboids major

Answer 13

Origin: T2 - T6 (varies)
Insertion: Vertebral border of scapula
Action: Adduct/retract scapula, downward rotate
Nerve Supply: dorsal scapular.

Question 14

Describe the serratus muscle.

Answer 14

Origin: ribs 1 - 8
Insertion: vertebral border of scapula
Action: protraction, upward rotation
Nerve Supply: Long thoracic

Question 15

Describe Pectoralis minor

Answer 15

Origin: Ribs 3 - 5
Insertion: Coracoid
Action: depression, protraction & downward rotation
Nerve Supply: medial pectoral

Question 16

Describe the deltoids.

Answer 16

Origin: Clavicle & scapula
Insertion: Humerus
Action: anterior, middle & posterior fibers
Nerve Supply: axillary

Question 17

Describe the supraspinatus.

Answer 17

Origin: supraspinatus fossa
Insertion: greater tuburcle, humerus
Action: abducts humerus
Nerve Supply: suprascapular nerve

Question 18

Describe latissimus dorsi.

Answer 18

Origin: T9 - 12, L1 - 5 posterior iliac crest.
Insertion: Intertuburcular groove, humerus.
Action: extension of humerus.
Nerve Supply: Thoracodorsal.

Question 19

Describe teres minor.

Answer 19

Origin: Lateral border, scapula
Insertion: greater tuburcle, humerus
Action: Extension (lateral rotation also)
Nerve Supply: Axillary

Question 20

Describe teres major.

Answer 20

Origin: Inferior angle, scapula
Insertion: greater tuburcle, humerus
Action: Extension (Medial rotation also)
Nerve Supply: Lower subscapular.

Question 21

Describe the tricep.

Answer 21

Origin: Infraglenoid tuburcle, scapula
Insertion: olecranon, ulna
Action: Extension
Nerve Supply: Radial

Question 22

Describe pectoralis major

Answer 22

Origin: Ribs 2 - 6, sternum, medial clavicle
Insertion: greater tuburcle, humerus
Action: Flexor (adducts also)
Nerve Supply: Pectoral nerves.

Question 23

Describe coracobracialis.

Answer 23

Origin: Cocacoid process, scapula
Insertion: Shaft, humerus
Action: flexor
Nerve Supply: Musculocutaneous

Question 24

Describe Bicep (long head)

Answer 24

Origin: supraglenoid tuburcle, scapula
Insertion: radial tuberosity
Action: Flexor
Nerve Supply: Musculocutaneous.