Posterior muscles Lab

Question 1

Trapezius

Answer 1

elevates, depresses, stabilizes and adducts scapula

Question 2

deltoid

Answer 2

abduction, flexion and extension of shoulder

Question 3

triceps brachii

Answer 3

elbow extension and shoulder adduction

Question 4

to what does tri refer to in triceps brachii

Answer 4

of origins

Question 5

latissimus dorsi

Answer 5

extension, adduction and medial rotation of shoulder

Question 6

levator scapula

Answer 6

elevates and adducts scapula

Question 7

rhomboids

Answer 7

adducts and stabilizes scapula

Question 8

supraspinatus

Answer 8

shoulder abduction

Question 9

infraspinatus

Answer 9

lateral rotation of humerus

Question 10

teres major

Answer 10

medial rotation, adduction and extension of the shoulder

Question 11

gluteus maximus

Answer 11

hip extension

Question 12

gluteus medius

Answer 12

hip abduction

Question 13

piriformis

Answer 13

lateral rotation and abduction of hip

Question 14

tensor fascia lata

Answer 14

flexion and abduction of hip

Question 15

biceps femoris

Answer 15

hip extension and knee flexion

Question 16

semitendinosus

Answer 16

hip extension and knee flexion

Question 17

semimembranosus

Answer 17

hip extension and knee flexion

Question 18

gastrocnemius

Answer 18

knee flexion and plantar flexion

Question 19

soleus

Answer 19

plantarflexion

Question 20

flexor carpi radialis

Answer 20

flexion and radial deviation of wrist

Question 21

flexor digitorum

Answer 21

flexion of phalanges 2-5

Question 22

flexor carpi ulnaris

Answer 22

flexion and ulnar deviation of wrist

Question 23

supraspinatus origin and insertion

Answer 23

origin: supraspinous fossa of scapulainsertion: greater tubercle of humerus

Question 24

latissimus dorsi origin and insertion

Answer 24

origin: inferior ribs, spines of inferior thoracic and lumbar vertebra, dorsal sacrum, and iliac crestinsertion: intertubercular groove of humerus

Question 25

gluteus maximus origin and insertion

Answer 25

origin: dorsal ilium, sacrum and coccyxinsertion: iliotibial tract and gluteal tuberosity of femur

Question 26

tensor fascia lata origin and insertion

Answer 26

origin: iliac crest and anterior superior iliac spineinsertion: tibia via iliotibial tract

Question 27

biceps femoris origin and insertion

Answer 27

origin: ischial tuberosity and linea asperainsertion: head of fibula and lateral tibial condyle

Question 28

trapezius origin and insertion

Answer 28

origin: dorsal midline from external occipital protuberance through T12insertion: acromion and spine of scapula and adjacent clavicle