Muscles Origin And Insertions

Question 1

Masseter
origin and insertion

Answer 1

Origin- zygomatic arch
Insertion- mandibular ramus

Question 2

Temporalis

Answer 2

Origin- temporal and frontal bones
Insertion- mandibular ramus

Question 3

Sternocleidomastoid

Answer 3

Origin- sternum & clavicle
Insertion- mastoid process of temporal bone

Question 4

Trapezius

Answer 4

Origin- occipital bone, spinous process
Insertion- clavicle & scapula

Question 5

Latissimus dorsai

Answer 5

Origin- rib border 5-12
Insertion- intertubercular groove of humerus

Question 6

Pectoralis major

Answer 6

Origin- clavicle, sternum and coastal cartilages ( ribs 2-6)
Insertion- greater tubercle, intertubercular groove of humerus

Question 7

External oblique

Answer 7

Origin-rib border 5-12
Insertion- linea alba, iliac crest

Question 8

Internal oblique

Answer 8

Origin- thoracolumbar fossa, iliac crest
Insertion- linea alba

Question 9

Rectus abdominis

Answer 9

Origin- pubic crest & public symphysis
Insertion- xiphoid process, 5-7 ribs

Question 10

Supraspinatus

Answer 10

Origin- supraspinous fossa of scapula
Insertion- greater tubercle of humerus

Question 11

Infraspinatus

Answer 11

Origin- infraspinous fossa of scapula
Insertion- greater tubercle of humerus

Question 12

Teres minor

Answer 12

Origin- inferior lateral border of scapula
Insertion- greater tubercle of humerus

Question 13

Subscapularis

Answer 13

Origin- subscapular fossa of scapula
Insertion- lesser tubercle of humerus

Question 14

Deltoid

Answer 14

Origin- clavicle, acromion and spine of scapula
Insertion- deltoid tuberosity

Question 15

Biceps brachii

Answer 15

Origin- Coracoid process and supraglenoid tubercle
Insertion- radial tuberosity

Question 16

Brachialis

Answer 16

Origin- distal surface of humerus
Insertion- ulnar tuberosity

Question 17

Triceps brachii

Answer 17

Origin- lateral and posterior humerus
Insertion- olecranon process

Question 18

Brachioradialis

Answer 18

Origin- distal surface of humerus
Insertion- styloid process of radius

Question 19

Iliacus

Answer 19

Origin- iliac fossa
Insertion- lesser trochanter of femur

Question 20

Gluteus Maximus

Answer 20

Origin- iliac crest, sacrum and coccyx
Insertion- illiotibial tract, gluteal tuberosity

Question 21

Sartorius

Answer 21

Origin- Anterior superior iliac spine
Insertion- medial Tibial

Question 22

Rectus femoris

Answer 22

Origin- anterior inferior iliac spine
Insertion- tibial tuberosity via patellar ligament

Question 23

Vastus medialis

Answer 23

Origin- linea aspera of femur
Insertion- tibial tuberosity via patellar ligament

Question 24

Vastus lateralis

Answer 24

Origin- linea aspera of femur
Insertion- tibial tuberosity via patellar ligament

Question 25

Vastus intermedius

Answer 25

Origin- lateral and medial condyles of femur
Insertion- tibial tuberosity via patellar ligament

Question 26

Adductor longus

Answer 26

Origin- public crest and pubic symphysis
Insertion- linea aspera of femur

Question 27

Adductor magnus

Answer 27

Origin- inferior ramus of pubis
Insertion- linea aspera of femur

Question 28

Biceps femoris

Answer 28

Origin- ischial tuberosity
Insertion- head of fibula and lateral condyle of tibia

Question 29

Semitendinosus

Answer 29

Origin- ischial tuberosity
Insertion- proximal tibia

Question 30

Semimembranosus

Answer 30

Origin- ischial tuberosity
Insertion- medial condyle of tibia

Question 31

Gastrocnemius

Answer 31

Origin- lateral and medial condyles of femur
Insertion- calcaneus via calcaneal tendon

Question 32

Soleus

Answer 32

Origin- head of fibula and medial tibia
Insertion- calcaneus way via calcaneal tendon