Origins and Insertions

Question 1

Supraspinatus

Answer 1

O = Supraspinous fossa of the scapula
I = Greater tubercle of the humerous

Question 2

Infraspinatus

Answer 2

O = Infraspinous fossa of the scapula
I = Greater tubercle of the humerous

Question 3

Teres Minor

Answer 3

O = Posterior, lateral border of scapula
I = Greater tubercle of the humerous

Question 4

Subscapularis

Answer 4

O = Subscapular fossa of scapula
I = Lesser tubercle of the humerous

Question 5

Biceps Brachii

Answer 5

O = Longhead: scapula above glenoid cavity. Shorthead: coracoid process
I = Radial tuberosity

Question 6

Triceps Brachii

Answer 6

O = Longhead: scapula below glenoid cavity. Lateral and medial heads: posterior surface of the humerous
I = Olecranon process

Question 7

Flexor digitorum superficialis muscle

Answer 7

O = Medial epicondyle. Proximal portion of ulna and radius
I = Anterior surface of phalanges

Question 8

Extensor digitorum

Answer 8

O = Lateral epicondyle
I = Posterior surface of phalanges

Question 9

Rectus femoris

Answer 9

O = Anterior inferior iliac spine. Superior margin of acetabulum
I = Tibial tuberosity via the patella tendon

Question 10

Vastus Lateralis

Answer 10

O = Greater trochanter
I = Tibial tuberosity via the patella tendon

Question 11

Vastus Medialis

Answer 11

O = Anterior surface of femur. Linea aspera
I = Tibial tuberosity via the patellar tendon

Question 12

Vastus intermedius

Answer 12

O = Anterior, proximal surface of the femur
I = Tibial tuberosity via the patellar tendon

Question 13

Biceps femoris

Answer 13

O = Ischial tuberosity. Linea aspera
I = Head of fibula. Lateral tibial condyle

Question 14

Semitendinosus muscle

Answer 14

O = Ischial tuberosity
I = Proximal medial surface of tibia

Question 15

Semimembranosus muscle

Answer 15

O = Ischial tuberosity
I = Medial tibial condyle

Question 16

Tibialis anterior

Answer 16

O = Lateral tibial condyle. Upper two thirds of tibial shaft
I = Tarsals, first meta tarsles

Question 17

Gastrocnemius

Answer 17

O = Medial and lateral femoral condyles
I = Calcaneus via Achilles tendon

Question 18

Soleus

Answer 18

O = Head/shaft of fibula. Shaft of tibia
I = Calcaneus via Achilles tendon

Question 19

Orbicularis Oculi

Answer 19

O = Frontal and Maxillary bone around orbits
I = Fibres of the upper and lower eyelid

Question 20

Orbicularis Oris

Answer 20

O = Maxilla. Mandible
I = Inner aspect of the skin

Question 21

Buccinator

Answer 21

O = Maxilla. Mandible
I = Fibres of the orbicularis oris

Question 22

Masseter

Answer 22

O = Zygomatic arch. Zygomatic bone
I = Mandible

Question 23

Temporalis

Answer 23

O = Temporal bone
I = Mandible

Question 24

External Intercostal muscle

Answer 24

O = Inferior surface of the rib above
I = Superior surface of the rib below

Question 25

Internal Intercostal muscle

Answer 25

O = Superior surface of the rib below I = Inferior surface of the rib above

Question 26

Diaphragm

Answer 26

O = Xiphoid process. Lower ribs. First Lumbar vertebrae I = A central tendon

Question 27

Rectus abdominis

Answer 27

O = Superior surface of pubic bone I = Xiphoid process. Costal cartilage of ribs 5-7

Question 28

Pectoralis Major

Answer 28

O = Clavicle. Sternum. Cartilage of ribs 1-7 I = Greater tuberacle of the humerous

Question 29

Deltoid

Answer 29

O = Clavicle. Acromoin. Spine of scapula I = Deltoid tuberosity

Question 30

Latissimus Dorsi

Answer 30

O = Spinous processes T7-12. Iliac crest I = Intertubercular sulcus of the humerus

Question 31

Sternocleidomastoid

Answer 31

O = Sternum. Sternal end of clavicle I = Mastoid process of skull

Question 32

Trapezius

Answer 32

O = Occipital bone. Cervical vertebrae. Thoracic vertebrae I = Clavicle. Acromion. Spine of scapula