Muscles Origins and Insertions

Question 1

Biceps brachii

Answer 1

Short head: coracoid process
Long head: superior margin of glenoid fossa

Radial tuberosity, fascia of forearm

Question 2

Triceps brachii

Answer 2

Long head: inferior margin of glenoid fossa and joint capsule
Lateral and medial head: posterior humerus

Olecranon process of ulna, fascia of forearm

Question 3

Latissimus dorsi

Answer 3

Spinous processes of lower thoracic (T7-T12) vertebrae; ribs (8-12); iliac crest

Intertubercular groove of humerus

Question 4

Trapezius

Answer 4

EOP, occipital bone, nuchal ligament, spinous processes of C7-T4

Lateral clavicle, acrimonious and spine of scapula

Question 5

Biceps femoris

Answer 5

Long head: ischial tuberosity
Short head: linea aspera, supracondylar line of femur

Head of fibula

Question 6

Semitendinosus

Answer 6

Ischial tuberosity

Proximal medial surface of tibia

Question 7

Gluteus maximus

Answer 7

Posterolateral surface of ilium, sacrum and coccyx

Gluteal tuberosity of femur and lateral condyle of tibia via iliotibal band

Question 8

Rectus femoris

Answer 8

Anterior inferior iliac spine and superior acetabular rim; capsule of hip joint

Patella, tibial tuberosity via patellar ligament

Question 9

Tibialis anterior

Answer 9

Lateral console and proximal shaft of tibia; interosseous membrane

Metatarsal I and medial (1st) cuneiform

Question 10

Gastrocnemius

Answer 10

Medial and lateral heads - condyles and popliteal surface of femur, capsule of knee joint

Via the Achilles tendon to calcaneus

Question 11

Orbicularis oris

Answer 11

Modiolus of mouth

Submucosa and dermis of lips

Question 12

Masseter

Answer 12

Zygomatic arch

Lateral surface of ramus and angle of mandible

Question 13

Sternocleidomastoid

Answer 13

Manubrium, medial clavicle

Mastoid process

Question 14

Pectoralis major

Answer 14

Medial clavicle, costal cartilages 1-7, anterior sternum, aponeurosis os external abdominal oblique m.