Muscles (Origin/Insertion) - Lab

Question 1

masseter

Answer 1

origin - zygomatic arch
insertion - ramus of mandible

Question 2

sternocleidomastoid

Answer 2

origin - manubrium
insertion - mastoid process

Question 3

trapezius

Answer 3

origin - occipital bone and thoracic spine
insertion - clavicle, acromion/spine of scapula

Question 4

deltoid

Answer 4

origin - acromion/spine of scapula
insertion - deltoid suberosity

Question 5

latissimus dorsi

Answer 5

origin - spines of lower vertebrae and thoracolumbar fascia
insertion - proximal anterior humerus

Question 6

pectoralis major

Answer 6

origin - sternum, costal cartilage, and clavicle
insertion - proximal anterior humerus

Question 7

biceps brachii

Answer 7

origin - coracoid process and glenoid cavity
insertion - radial tuberosity

Question 8

triceps brachii

Answer 8

origin - scapula and humerus
insertion - olecranon

Question 9

adductor longus or magnus

Answer 9

origin - pubis and ischial tuberosity
insertion - linea aspera

Question 10

gluteus maximus

Answer 10

origin - ilium and sacrum
insertion - proximal posterior femur and iliotibial tract

Question 11

semimembranosus or semitendinosus

Answer 11

origin - ischial tuberosity
insertion - proximal medial tibia

Question 12

psoas major

Answer 12

origin - lumbar vertebrae
insertion - lesser trochanter

Question 13

rectus femoris

Answer 13

origin - acetabulum and anterior/inferior iliac spine
insertion - tibial tuberosity

Question 14

gastrocnemius

Answer 14

origin - femoral condyles
insertion - calcaneus