Posterior Mucles

Question 1

trapezius

Answer 1

Joint: Atlantooccipital and Atlantoaxial joint
Action: Alantoocciptial – extension head and neck, lateral flexion head and neck
Atlantoaxial – rotation of head

Question 2

deltoid

Answer 2

Joint: shoulder (glenohumeral)
Action: anterior deltoid – flexion of shoulder
Lateral deltoid – abduction of shoulder
Posterior deltoid – extension of shoulder

Question 3

triceps brachii

Answer 3

Joint: Elbow and Shoulder
Action: elbow – extension of forearm
Shoulder – extension and adduction of arm

Question 4

latissmus dorsi

Answer 4

Joint: shoulder joint
Action: rotation, adduction, extension of arm

Question 5

levator scapula

Answer 5

Joint: Scapulothoracic and cervical
Action: scapulothoracic – rotates glenoid cavity inferiorly
cervical - lateral flexion, extension of neck

Question 6

rhomboids

Answer 6

Joints: scapulothoracic
Action: rotates scapula

Question 7

supraspinatus

Answer 7

Joint: glenohumeral
Action: abduction of arm

Question 8

infraspinatus

Answer 8

Joint: glenohumeral
Action: arm external rotation

Question 9

teres minor

Answer 9

Joint: shoulder
Action: rotation, adduction of arm

Question 10

teres major

Answer 10

Joint: shoulder
Action: extension and internal rotation of arm

Question 11

gluteus maximus

Answer 11

Joint: hip
Action: extension, rotation, adduction abduction of thigh

Question 12

gluteus medius

Answer 12

Joint: Hip
Action: abduction, rotation of thigh

Question 13

piriformis

Answer 13

Joint: hip
Action: rotation, abduction of thigh

Question 14

tensor fascia lata

Answer 14

Joint: hip
Action: flexion, extension, abduction of hip

Question 15

biceps femoris

Answer 15

Joint: Hip and knee
Action: Hip - extension, rotation of thigh
Knee - Flexion, rotation of leg

Question 16

semitendinosus

Answer 16

Joint: hip and knee
Action: Hip -extension, rotation of thigh
Knee - Flexion, rotation of leg

Question 17

semimembranosus

Answer 17

Joint: hip and knee
Action: hip - extension and rotation of thigh
Knee - Flexion and rotation of leg

Question 18

gastrocnemius

Answer 18

Joint: talocrural and knee joint
Action: talocrural - foot plantar flexion
Knee joint - Leg flexion

Question 19

soleus

Answer 19

Joint: talocrural joint
Action: foot plantar flexion

Question 20

sartorius

Answer 20

Joint: hip and knee
Action: Hip - flexion, abduction, rotation of thigh
Knee – flexion, internal rotation of leg

Question 21

tibialis anterior

Answer 21

Joint: talocrural and subtalar
Action: talocrural – foot dorsiflexion
Subtalar – foot inversion