muscles of the back

Question 1

what is the action of the trapezius

Answer 1

elevates, retaracs and rotaes scapulra, lower fibers depress scapula

Question 2

what is the actio of the lattisums dorsi

Answer 2

extends, adducts and mdedilly rotes the humerous

Question 3

what si the actio sof teh levator scapule

Answer 3

elvates the scapulae

Question 4

what isthe actio of the rhomait maor and mionr

Answer 4

retrats adn rotates the scapula and fix it to thoracic wall

Question 5

what isthe atio of teh serratus posteori superois mulse

Answer 5

elevates ribs

Question 6

what isthe actio fof serratus poistero inferior

Answer 6

depress ribs

Question 7

what is the role of he sternocleido mastodi

Answer 7

tilts heds tto one side, so face is turned superior t opposdee sdie

Question 8

what is the directio of ineranl oblique

Answer 8

upwards from back

Question 9

what is the dirctio of the exertioal oblieq

Answer 9

dowaers drom back

Question 10

what is the direction oof traverse abdois

Answer 10

horizonal to body

Question 11

what is the role of external and in teranl aboinal oblieq

Answer 11

compress and suport abidoal viscera, flexes and rotates trunk

Question 12

what is the role of he tranverse abdomial

Answer 12

compress and suport abdomal viscrea

Question 13

what is the role of the rectus abdomious

Answer 13

flex trunk and comples amboidla viscera

Question 14

what is the role of pasos major

Answer 14

acting superiorly with illacus, flex hip
acting infiar, felsxes vertabel colum laterally
flexus tranuk

Question 15

what is the role of illacus

Answer 15

flexes thigh at hip and stabilise hip join acts with psoas major

Question 16

what is the roel of quadratus lumborum

Answer 16

extend and laterally flex vertebal colum, fixse 12 rib during insiation

Question 17

what is the role of teres major

Answer 17

adducsts arm and medialy rotaes sholulder

Question 18

what tis the role of teres minor

Answer 18

laterally rots arm at shooul ,extends humerous , adduction adn exteions of shoulred

Question 19

what is the role of the pectoralis major

Answer 19

flexes, adducts and medially rotes arm at shoulder

Question 20

what is the role of the pecotrsli minor

Answer 20

lower lateral angle of scapula and protracts it

Question 21

how many jionts are cross by the bicept bracci

Answer 21

3

Question 22

how many joint are crossed by teh tricepts brachio

Answer 22

2

Question 23

role of biceptr brachio

Answer 23

supinates flexed forearm, flexes foream at elbow, flextio at sholure

Question 24

role of tricepte brchi

Answer 24

extend forrearm at elvnw]
cheif exteor of elvbow
steadies hea of abducted humerus

Question 25

what is the role of the gluteus maximus

Answer 25

extends hips lateral rotaoin of hip # abdctisonof hip

Question 26

what is the role of teh gluteus medius

Answer 26

abducts adn meaill rotes thrigh at hip, steadies pelvie on limb when opposite limb is raised

Question 27

what is teh role of the gludeous mius

Answer 27

abducts and medially rots thigh at hip, steadise pelvis on limb when opposite lib is raised

Question 28

what is the role of teh scalken musle

Answer 28

elevate the ribs