Superficial muscles

Question 1

Masseter

Answer 1

O- Zygomatic arch
I- Masseteric fossa of the mandible
In- Masicatory n (br of mandibular n)
F- Raise the mandible

Question 2

Trapezius

Answer 2

O- Dorsal median raphe of the neck C3 to the SP's of T1-9
I- Dorsal 2/3 scapular (CERVICAL)
   Dorsal 1/3 scapular (THORACIC)
In- Dorsal br of the accessory n
F- Draws scapular dorsally (Together)
    Craniodorsally (CERVICAL)
    Caudodorsally (THORACIC)

Question 3

Sternocephalicus

Answer 3

O- 1st Sternebra/ Mandibrium
I- Mastoid part of the temporal bone & Nuchal crest of occipital bone
In- Accessory n
F- Draws the head ventrally & to one side
Protractor of FL

Question 4

Brachiocephalicus

Cleidocephalicus & Ceidobrachialis

Answer 4

O- Distal 3rd cranial border of the Humerus
Crosses cranial lateral shoulder surface
Divides in two at the clavicular intersection
I- 2 parts:
Pars cervicalis- nuchal crest of the occipital bone
Pars Mastoidea- mastoid process
In- Accessory n
Ventral br. of cervical n
F- Advance FL
Extend shoulder
Draws head and neck to one side

Question 5

Omotransversarius

Answer 5

O- Acromion of the scapular 
I- Wing of Atlas
In- Ventral br of the 4th cervical n
F- Advances FL
    Bends neck to one side

Question 6

Deltoideus

Answer 6

O- Spine & Acromion of the Scapular
I- Deltoid tuberosity
In- Axillary n
F- Flexes shoulder

Question 7

Brachialis

Answer 7

O- Lateral supracondylar crest
I- Disto-medial radius
In- Radial n
F- Flexes elbow

Question 8

Ascending pectorals (Deep)

Answer 8

O- Body of the sternum
I- Greater and lesser tubercles of the humerus 
     Brachial fascia 
In- Caudal pectoral n
F- Support trunk
    Retract FL
    Fixes shoulder joint

Question 9

Superficial pectorals

Transverse & Descending

Answer 9

O- Mandibrium & Cranial part of sternum 
I- Crest of Greater tubercle
In- Cranial pectoral n
F- Limb- trunk attachment
    Adductor
    Protractor 
    Retractor

Question 10

Anconeus

Answer 10

O- Olecranon fossa
I- Attaches with triceps tendon on the Olecranon
In- Radial n
F- Extends elbow

Question 11

Rhomboideus

Capitis/ Cervicis/ Thoracis

Answer 11

O- Nuchal crest (Capitis)
     Dorsal med. raphe of the neck C2-T1 (CERVICIS)
     Cranial & thoracis spine (THORACIS)
I- Medial surface of scapular cartilage 
In- Ventral br. of cervical n
F- Fix thoracic limb
    Elevates and draws scapular forward

Question 12

Teres Major

Answer 12

O- Caudal margin of the scapular
I- Teres major
In- Axillary n
F- Flexes shoulder

Question 13

Teres Minor

Answer 13

O- Infraglenoid tubercle and distal infraspinous fossa
I- Teres minor tuberosity
In- Axillary n
F- Flexes shoulder

Question 14

Supraspinatus

Answer 14

O- Supraspinatus fossa and scapular spine
I- Greater tubercle of the humerus
In- Suprascapular n
F- Extends & fixes shoulder

Question 15

Infraspinatus

Answer 15

O- Infraspinatus fossa & scapular spine
I- Medial surface of the humerus
In- Suprascapular n
F- Flexes and abducts shoulder

Question 16

Subscapularis

Answer 16

O- Subscapularis fossa
I- Lesser tubercle of humerus 
In- Suprascapular n (main part)
     Axillary n (Caudal part)
F- Adducts the shoulder

Question 17

Serratus Ventralis

Cervical & Thoracic

Answer 17

O- TP's C2-7 (CERVICAL_
     Ribs 1-7 (THORACIC)
I- Facies serrata of the scapular
In- Ventral br. of cervical n (CERVICAL)
     Long thoracic n (Thoracic)
F- Support trunk
    Raises neck

Question 18

Tensor Fascia Antibrachii

Answer 18

O- Caudal margin of scapular & Latissimus dorsi
I- Olecranon & Antebrachial fascia
In- Radial n
F- Extends elbow
    Tenses forearm fascia

Question 19

Triceps

Long/ Lateral/ Medial/ Accessory

Answer 19

O- Caudal margin of scapular (Long)
     Proximal lateral humerus (Lateral)
     Medial humerus (Medial)
     Caudal neck of humerus (Accessory)
I- Olecranon
In- Radial n
F- Extend elbow
    Flexes shoulder

Question 20

Biceps brachii

Answer 20

O- Supraglenoid tubercle of scapular
I- Radial tuberosity & proximedial ulna
In- Musculocutaneous n
F- Elbow flexor

Question 21

Latissimus dorsi

Answer 21

O- Thoracolumbar fascia
I- Teres major tuberosity
In- Thoracodorsal n
F- Flex shoulder
    Draws limb caudally
    Draws trunk cranially (limb fixed)

Question 22

Sternohyoideus

Answer 22

O- Mandibrium
     First costal cartilage 
I- Basihyoideum
In- Ventral br of 1st cervical n
F- Draws hyoid and tongue caudally

Question 23

Sternothydroideus

Answer 23

O- Mandibrium
     First costal cartilages 
I- Thydroid cartilage of larynx
In- Ventral br. of 1st Cervical n
F- Draws larynx caudally