Limbs 1

Question 1

Pectoralis major origin and insertion

Answer 1

It has a clavichord head and a sterna, head
Proximal attachment from clavicle and sternum
Insertion into intertubercular groove of humerus

Question 2

Actin of pectoralis major

Answer 2

Adducts and medially rotates the arm

Question 3

Innervation of pectoralis majors

Answer 3

Medial and lateral pectoral nerves

Question 4

Pectoralis minor origin and insertion

Answer 4

Origin from ribs 3-5
Insertion into coracoid process of scapula

Question 5

Action of pectoralis minor

Answer 5

Stabilize scapula

Question 6

Innervation of pec minor

Answer 6

Medial pectoral nerve

Question 7

Serrated anterior origin and insertion

Answer 7

Origin from ribs 1-8 and insertion into anterior surface of the medial border of scapula

Question 8

Action of serratus anterior

Answer 8

Protracts rhe scapula

Question 9

Innervation of serratus anterior

Answer 9

Innervated by long thoracic nerve

Question 10

Trapezius origin and insertion

Answer 10

Origin from nuchal ligament,external occipital protuberance and spinous process c7-T12 vertebrae
Insertion into lateral third of clavicle acromion and spine of scapula

Question 11

Trapezius action

Answer 11

Elevates retracts and depressed scapula

Question 12

Innervation of trapezius

Answer 12

By spinal accessory nerve

Question 13

Latisimuss dorsi origin and insertion

Answer 13

Origin from iliac crest thoracolumbar fascia,spinous process of T6-T12 and inferior 3 ribs
Insertion into intertubercular groove of humerus

Question 14

Action of latisimus dorsi

Answer 14

Adducts extends and medially rotates the arm

Question 15

Innervation of lattisimus dorsi

Answer 15

Innervated by thoracodorsal nerve

Question 16

Deltoid origin and insertion

Answer 16

Origin from lateral third of clavicle acromion and spine of scapula
Insertion into deltoid tuberosity

Question 17

Action of deltoid

Answer 17

Primary abductor

Question 18

Innervation of deltoid

Answer 18

Axillary nerve

Question 19

Teres major origin and insertion

Answer 19

Origin from inferior angle of scapula
Inserts into intertubercular groove

Question 20

Action of teres major

Answer 20

Adducts and medically rotates arm

Question 21

What are the rotator cuff muscles

Answer 21

Subscapularis
Supraspinatus
Infraspinatous
Teres minor

Question 22

Origin and insertion of subscapularis

Answer 22

Origin from subscapular fossa of scapula
Insertion into lesser tubercle of humerus

Question 23

Subscapularis action

Answer 23

Medially rotates the arm

Question 24

Supraspinatus

Answer 24

Origin from supraspinous fossa
Inserts into greater tubercle of humerus

Question 25

Action of supraspinatous

Answer 25

Initiates first 15 degrees of abduction

Question 26

Infraspinatous origin and insertion

Answer 26

Origin from Infraspinatous fossa of scapula insertion into greater tubercle of humerus

Question 27

Infraspinatous action

Answer 27

Laterally rotates the arm

Question 28

Teres minor origin and insertion

Answer 28

Origim from lateral border of scapula insertion into greater tubercle of humerus

Question 29

Teres minor action

Answer 29

Laterally rotates the arm

Question 30

Muscles from deep to superficial on scapula is it

Answer 30

Serratus Subscapularis scapula Supraspinatus and Infraspinatous

Question 31

Teres minor Innervation

Answer 31

Axillary nerve

Question 32

Terminal branches of brachial plexus

Answer 32

Axillary C5-C6 Musculocutaneous C5, C6, C7 Radial C5, C6, C7, C8, T1 Median C6, C7, C8, T1 Ulnar C8, T1 A muscular rhino makes ulnar

Question 33

Arterial supply to shoulder

Answer 33

Arises from subclavian and Axillary artery

Question 34

Subclavian artery

Answer 34

Has three parts First is the thyrocervical trunk which gives rise to suprascpular artery

Question 35

Axillary artery

Answer 35

3 main parts 3rd part the circumflex (anterior and posterior) and Subscapularis artery Supplies head of humerus and glenohumeral joint Subclavian and Axillary co,bind to form anastomosis

Question 36

Venous drainage

Answer 36

Anterior and posterior circumflex drain into Axillary vein which is formed of union of brachial vein and basilic vein

Question 37

Brachial plexus

Answer 37

Roots form trunks form divisions for, cords form terminal nerves

Question 38

Boundaries of Axillary

Answer 38

Apex first rib clavicle and scapula Anterior wall is pec major and minor Posterior wall is latisimus dorsi teres major Subscapularis and long head of biceps brachii Lateral wall humerus Medial wall serratus anterior Base skin and fascia