Muscular System

Question 1

adductor longus

Answer 1

origin - pubic bone
insertion - posterior surface of femur
location - medial part of thigh
action - adducts thigh, flexes thigh at hip

Question 2

biceps brachii

Answer 2

origin - scapula
insertion - radius
location - anterior upper arm
action - flexes forearm at elbow

Question 3

biceps femoris

Answer 3

origin - femur
insertion - head of fibula
location - posterior thigh (part of hamstrings)
action - flexes leg at knee, extends thigh at hip

Question 4

brachialis

Answer 4

origin - anterior humerus
insertion - radius
location - lateral near elbow
action - flexes forearm at elbow

Question 5

deltoid

Answer 5

origin - scapula and clavicle
insertion - humerus
location - caps of shoulder
action - abducts arm

Question 6

extensor digitorum longus

Answer 6

origin - tibia and fibula
insertion - four lateral toes
location - anterior lower leg, runs in front of ankle, to toes
action - dorsiflexion of foot, entension of toes

Question 7

extrnal oblique

Answer 7

origin - lower 8 ribs
insertion - outer lip of iliac crest (pelvis)
location - lateral abdominals
action - abducts at hip

Question 8

fibularis longus

Answer 8

origin - lateral surface of tibia
insertion - tarsal (foot) bone and first metatarsal
location - anterior lower leg and foot
action - plantar flexion and eversion

Question 9

frontalis

Answer 9

origin - epicranial aponeurosis
insertion - supraorbital foramen
location - forehead
action - raises eyebrows

Question 10

gastronemius

Answer 10

origin - lateral and medial femur
insertion - posterior surface of calcaneus (heel)
location - calf muscle
action - plantar flexion

Question 11

gluteus maximus

Answer 11

origin - sacrum, coccyx, posterior ilium
insertion - posterior femur and thigh
location - butt muscle
action - extends thigh at hip

Question 12

gracilis

Answer 12

origin - lower edge of pubis
insertion - proximal medial surface of tibia
location - medial upper leg
action - adducts thigh

Question 13

lattissimus dorsi

Answer 13

origin - lower spine and ribs
insertion - medial humerus
location - posterior part of back
action - adducts arm

Question 14

pectoralis major

Answer 14

origin - anterior surface of ribs 3-5
insertion - process of scapula
location - chest
action - adducts arm

Question 15

rectus abdominis

Answer 15

origin - crest of pubis
insertion - xiphoid process and costal cartilage
location - anterior, medial, and superior to pelvis
action - flexes at hip

Question 16

rectus femoris

Answer 16

origin - anterior inferior iliac spine
insertion - patella and tibia
location - anterior, upper leg
action - extends leg at knee, flexes thigh at hip

Question 17

sartorius

Answer 17

origin - anterior, superior iliac spine
insertion - medial surface of tibia
location - medial upper leg
action - flexes leg at knee, flexes thigh at hip

Question 18

serratus anterior

Answer 18

origin - anterior of upper ribs
insertion - medial border of scapula
location - lateral part of upper chest
action - abducts scapula

Question 19

soleus

Answer 19

origin - posterior fibula and tibia
insertion - posterior surface of calcaneus (heel)
location - behind gastrocnemius
action - plantar flexion of foot

Question 20

sternocleidomastoid

Answer 20

origin - sternum and medial clavicle
insertion - mastoid process of temporal bone
location - neck
action - rotates head to opposite side

Question 21

tibialis anterior

Answer 21

origin - lateral surface of tibia
insertion - tarsal bone and first metatarsal
location - anterior lower leg
action - dorsiflexion and i version of foot

Question 22

trapezius

Answer 22

origin - occipital bone, cervical and thoracic vertebrae
insertion - clavicle and acromion process of scapula
location - posterior, superior back and nevk
action - shrugs shoulders

Question 23

triceps brachi

Answer 23

origin - humerus
insertion - ulna
location - posterior, upper arm
action - extends forearm at elbow

Question 24

vastus lateralis

Answer 24

origin - posterior surface of femur
insertion - patella
location - anterior, lateral upper leg
action - extends leg at knee

Question 25

vastus medialis

Answer 25

origin - medial surface of femur
insertion - patella
location - anterior, medial upper leg
action - extends leg at knee