Muscles - Attachments

Question 1

What is the origin and insertion for the Occipitofrontalis muscle (frontal belly?)

Answer 1

Origin: Epicranial aponeurosis
Insertion: Skin superior to supraorbital margin

Question 2

What is the origin and insertion for the Occipitofrontalis muscle (occipital belly?)

Answer 2

Origin: Occipital bone and mastoid process of the temporal bone
Insertion: Epicranial aponeurosis

Question 3

What is the origin and insertion for the Orbicularis oris muscle?

Answer 3

Origin: Muscle fibers surrounding the mouth
Insertion: Skin at corner of mouth

Question 4

What is the origin and insertion for the Zygomaticus major muscle?

Answer 4

Origin: Zygomatic bone
Insertion: Skin at corner of mouth and Orbicularis oris muscle

Question 5

What is the origin and insertion for the Buccinator muscle?

Answer 5

Origin: Alveolar process of maxilla and mandible, pterygomandibular raphe
Insertion: Orbicularis oris muscle

Question 6

What is the origin and insertion for the Orbicularis oculi muscle?

Answer 6

Origin: Medial wall of orbit
Insertion: Circular path around orbit

Question 7

What is the origin and insertion for the Masseter muscle?

Answer 7

Origin: Maxilla and zygomatic arch
Insertion: Angle and ramus of mandible

Question 8

What is the origin and insertion for the Temporalis muscle?

Answer 8

Origin: Temporal bone
Insertion: Coronoid process and ramus of mandible

Question 9

What is the origin and insertion for the Medial pterygoid muscle?

Answer 9

Origin: Medial surface of lateral pterygoid process of sphenoid bone, maxilla
Insertion: Angle and ramus of mandible

Question 10

What is the origin and insertion for the Lateral pterygoid muscle?

Answer 10

Origin: Greater wing and lateral surface of lateral pterygoid process of sphenoid bone
Insertion: Condyle of mandible, temporal-mandibular joint

Question 11

What is the origin and insertion for the Rectus abdominus muscle?

Answer 11

Origin: Pubic crest, pubic symphysis
Insertion: Cartilage of ribs 5-7, Xiphoid process of sternum

Question 12

What is the origin and insertion for the External oblique muscles?

Answer 12

Origin: Ribs 5-7
Insertion: Iliac crest, linea alba

Question 13

What is the origin and insertion for the Internal oblique muscles?

Answer 13

Origin: Iliac crest, inguinal ligament, thoracolumbar fascia
Insertion: Cartilage of ribs 7-10, linea alba

Question 14

What is the origin and insertion for the Transverse abdominis muscle?

Answer 14

Origin: Iliac crest, inguinal ligament, lumbar fascia, cartilage of ribs 5-10
Insertion: Xiphoid process of sternum, linea alba, pubis

Question 15

What is the origin and insertion for the Diaphragm muscle?

Answer 15

Origin: Xiphoid process of sternum, costal cartilages and adjacent borders of ribs 7-12, lumbar vertebrae and their associated intervertebral discs
Insertion: Central tendon

Question 16

What is the origin and insertion for the External intercostal muscles?

Answer 16

Origin: Inferior border of superior rib
Insertion: Superior border of inferior rib

Question 17

What is the origin and insertion for the Internal intercostal muscles?

Answer 17

Origin: Superior border of inferior rib
Insertion: Inferior border of superior rib

Question 18

What is the origin and insertion for the Pectoralis minor muscle?

Answer 18

Origin: Ribs 2-5
Insertion: Coracoid process of scapula

Question 19

What is the origin and insertion for the Serratus anterior muscle?

Answer 19

Origin: Ribs 1-9
Insertion: Vertebral border and inferior angle of Scapula

Question 20

What is the origin and insertion for the Trapezius muscle?

Answer 20

Origin: Superior nuchal line, ligamentum nuchae of vertebrae C7-T12
Insertion: Clavicle, acromion process and spine of scapula

Question 21

What is the origin and insertion for the Levator sacpulae muscle?

Answer 21

Origin: Transverse processes of vertebrae C1-C4
Insertion: Superior medial border of scapula

Question 22

What is the origin and insertion for the Rhomboid major muscle?

Answer 22

Origin: Spines of T2-T5
Insertion: Medial border of scapula

Question 23

What is the origin and insertion for the Pectoralis major muscle?

Answer 23

Origin: Sternum, clavicle, costal cartilages 1-7
Insertion: Lateral ridge of greater tubercle of humerus

Question 24

What is the origin and insertion for the Latissimus dorsi muscle?

Answer 24

Origin: Spinous processes of T7-L5, crests of sacrum and ilium
Insertion: Intertubercular sulcus of humerus

Question 25

What is the origin and insertion for the Deltoid muscle?

Answer 25

Origin: Clavicle, acromion process of scapula, spine of scapula Insertion: Deltoid tuberosity

Question 26

What is the origin and insertion for the Subscapularis muscle?

Answer 26

Origin: Subscapular fossa Insertion: Lesser tubercle of humerus

Question 27

What is the origin and insertion for the Supraspinatus muscle?

Answer 27

Origin: Supraspinous fossa Insertion: Greater tubercle of humerus

Question 28

What is the origin and insertion for the Infraspinatus muscle?

Answer 28

Origin: Infraspinous fossa Insertion: Greater tubercle of humerus

Question 29

What is the origin and insertion for the Teres minor muscle?

Answer 29

Origin: Inferior border of scapula Insertion: Greater tubercle of humerus

Question 30

What is the origin and insertion for the Teres major muscle?

Answer 30

Origin: Inferior angler of scapula Insertion: Medial ridge of intertubercular sulcus of humerus

Question 31

What is the origin and insertion for the Biceps brachii muscle?

Answer 31

Origin: Long head on supraglenoid tubercle of scapula, short head on coracoid process of scapula Insertion: Long head on radial tuberosity of radius, short head on bicipital aponeurosis

Question 32

What is the origin and insertion for the Brachialis muscle?

Answer 32

Origin: Distal anterior surface of humerus Insertion: Ulnar tuberosity of ulna, coronoid process of ulna

Question 33

What is the origin and insertion for the Brachioradialis muscle?

Answer 33

Origin: Distal lateral border of humerus Insertion: Styloid process of radius

Question 34

What is the origin and insertion for the Triceps brachii muscle?

Answer 34

Origin: Long head on infraglenoid tubercle of scapula, lateral head on lateral posterior humerus, medial head on posterior humerus Insertion: Olecranon process of ulna

Question 35

What is the origin and insertion for the Anconeus muscle?

Answer 35

Origin: Lateral epicondyle of humerus Insertion: Olecranon process and shaft of ulna

Question 36

What is the origin and insertion for the Pronator teres muscle?

Answer 36

Origin: Medial epicondyle of humerus and coronoid process of ulna Insertion: Lateral surface of radius

Question 37

What is the origin and insertion for the Supinator muscle?

Answer 37

Origin: Lateral epicondyle of humerus and supinator crest of ulna Insertion: Lateral surface of radius

Question 38

What is the origin and insertion for the Flexor carpi radialis muscle?

Answer 38

Origin: Medial epicondyle of humerus Insertion: Metacarpals 2 and 3

Question 39

What is the origin and insertion for the Plamaris longus muscle?

Answer 39

Origin: Medial epicondyle of humerus Insertion: Flexor retinaculum and palmar aponeurosis

Question 40

What is the origin and insertion for the Flexor carpi ulnaris muscle?

Answer 40

Origin: Medial epicondyle of humerus, posterior superior of ulna Insertion: Pisiform, famate, metacarpal 5