Location, Orientation, action

Question 1

Sartorius X

Answer 1

origin: Anterior Superior iliac spine
Insertion: Medial Surface of the tibia
Action: Flexes, abducts, laterally rotates the thigh, flexes the knee

Question 2

Trapezius X

Answer 2

Origin: Occipital bone, nuchal ligament, spinous process C7- T12
Insertion: Lateral third of clavicle, Acromion, spine of scapula
Action: Rotates the scapula, depresses the scapula

Question 3

Biceps Brachii

Answer 3

Origin: Coracoid process, supraglenoid tubercle
Insertion: Radial tuberosity
Action: Flexes the elbow and shoulder, supinates the forearm

Question 4

Subscapularis

Answer 4

Origin: Supraspinatus fossa
Insertion: Greater tubercle of humerus
Action:Abducts and stabilizes arm at the glenohumeral joint

Question 5

Latissimus Dorsi

Answer 5

Origin: Spinous process of t7-t12, iliac crest, lower 3 ribs
Insertion: Floor of the bicipital groove of the humerus
Action: Extends, abducts, medically rotates the arm

Question 6

Deltoid X

Answer 6

Origin: Anterior fibres, middle fibres, posterior fibres
Insertion: Deltoid tuberosity
Action: Flex, medically rotate the arm, abduct the arm, extend + laterally rotate the arm

Question 7

Vastus lateralis X

Answer 7

Origin: Greater trochanter, lateral lip of linea aspera of the femur
Insertion: Tibial tuberosity
Action: Extends the knee

Question 8

Soleus X

Answer 8

Origin: Posterior surface of the fibula, the soleal line of the tibia
Insertion: Posterior surface of the calcaneus via the Achilles tendon
Action: Plantarflexes the foot

Question 9

Brachialis X

Answer 9

Origin: Distal half of the anterior surface of the humerus
Insertion: Coronoid process and the tuberosity of the ulna
Action: Elbow flexion

Question 10

Biceps femoris

Answer 10

Origin: Ischium, femur
Insertion: Lateral side of the head of the fibula
Action: Flexes the knee, extends the thigh, laterally rotates the leg when the knee is flexed

Question 11

Tibialis Anterior

Answer 11

Origin: Lateral Condyle, lateral surface of the tibia
Insertion: Medial Cuneiform and base of the first metatarsal
Action: Dorsiflexes the foot, inverts the foot

Question 12

Vastus Medialis

Answer 12

Origin: Anterior + Lateral surfaces of the shaft of the femur
Insertion: Tibial Tuberosity
Action: Extends the knee

Question 13

Rhomboids

Answer 13

Origin: Nuchal ligament + spinous process of C7- T1, spinous processor T2-T5
Insertion: Medial border of scapula
Action: Retracts, rotates the scapula to depress the glenoid cavity

Question 14

Gastrocnemius

Answer 14

Origin: Lateral condyle of the femur, popliteal surface of the femur, superior to the medial condyle
Insertion: Posterior surface of the calcaneus via the Achilles tendon
Action: Plantar flexes the foot

Question 15

Teres Minor

Answer 15

Origin: Lateral border of scapula
Insertion: Inferior facet of the greater tubercle of the humerus
Action: Laterally rotates arm, stabilizes shoulder joint