Muscle of the Upper & Lower Extremities(origin,Insertion, & action)

Question 1

What is the muscle, origin, insertion and action?

Answer 1

Pectoralis major, clavicle, sternum, cartilage of ribs, & obliques; humerus; adducts & medially rotates arm

Question 2

What is this muscle and its origin, insertion and action?

Answer 2

Deltoid, trapezuius, clavicle & scapula; humerus; prime mover of arm.

Question 3

What is this muscle and its origin, insertion and action?

Answer 3

Lower six thoracic vertebrae, lower 3-4 ribs, coccyx and scapula; humerus; primer mover of arm.

Question 4

What is this muscle and its origin, insertion and action?

Answer 4

teres major; scapula;humerus; extends medially rotates, and adducts arm

Question 5

What is this muscle and its origin, insertion and action?

Answer 5

teres minor; scapula; humerus; rotates arm laterally

Question 6

What is this muscle and its origin, insertion and action?

Answer 6

biceps brachii; scapula; radius; flexes and supinates forearm

Question 7

What is this muscle and its origin, insertion and action?

Answer 7

brachialis; humerus; ulna & capsule of elbow joint; a major forearm flexor.

Question 8

What is this muscle and its origin, insertion and action?

Answer 8

brachioradialis; humerus; radius; synergist in flexing forearm

Question 9

What is this muscle and its origin, insertion and action?

Answer 9

triceps brachii; scapula & humerus; ulna; powerufl forearm extensor

Question 10

What is this muscle and its origin, insertion and action?

Answer 10

Flexor carpi radialis; humerus; metacarpals;powerful flexor and abductor of hand

Question 11

What is this muscle and its origin, insertion and action?

Answer 11

palmaris longus; humerus; palmar aponeurosis(facia of palm); tenses skin of fascia of palm during hand movement

Question 12

What is this muscle and its action?

Answer 12

Extensor carpi ulnaris; extends hands and adducts hand

Question 13

What is this muscle and its action?

Answer 13

Extensor digitorum; prime mover of finger extension

Question 14

What is this muscle and its origin, insertion and action?

Answer 14

Gluteus maximus; sacrum and cocyx; femur; major extensor of thigh

Question 15

What is this muscle and its origin, insertion and action?

Answer 15

gluteus medius; ilium; femur; abducts & medially rotates thigh

Question 16

What is this muscle and its origin, insertion and action?

Answer 16

tensor fasciae latae; coccyx; ilitibial tract; steadies the leg and trunk on thing by making iliotibial tract taut

Question 17

What is this muscle and its origin, insertion and action?

Answer 17

gracilis; pubis, coccyx; tibia; adducts thigh, flexes and medially rotates leg

Question 18

What is this muscle and its origin, insertion and action?

Answer 18

iliopsoas; prime mover for flexing thigh or flexing trunk on thigh & flexes vertebral column laterally

Question 19

What is this muscle and its origin, insertion and action?

Answer 19

Rectus femoris; coccyx; patella & tibia; extends leg and flexes thigh at hip

Question 20

What is this muscle and its origin, insertion and action?

Answer 20

vastus medialis; femur; patella dn tibia; extends leg

Question 21

What is this muscle and its origin, insertion and action?

Answer 21

vastus lateralis; femur; patella & tibia; extends & stabilizes leg

Question 22

What is this muscle and its origin, insertion and action?

Answer 22

vastus intermedius; femur; patella & tibia; extends leg

Question 23

What is this muscle and its origin, insertion and action?

Answer 23

sartorius; coccyx; medial aspect of knee & tbia; flexes, abducts and laterally rotates thigh

Question 24

What is this muscle and its origin, insertion and action?

Answer 24

semitendinosus; coccyx; tibia; extends thigh and flexes leg

Question 25

What is this muscle and its origin, insertion and action?

Answer 25

semimembranosus; coccyx; tibia & femur; extends thigh and flexes leg

Question 26

What is this muscle and its origin, insertion and action?

Answer 26

biceps femoris; coccyx & femur; fibula & tibia; extends thigh & flexes leg

Question 27

What is the muscle on the left and its origin, insertion and action?

Answer 27

tibialis anterior; tibia; cuneiform and 1st metatarsal bone; prime mover of dorsiflexion

Question 28

What is this muscle on the right and its origin, insertion and action?

Answer 28

extensor digitorum longus; fibula; middle & distal phalanges of 2nd thr 5th toes; prime mover of toe extension

Question 29

What is muscle #1 and its origin, insertion and action?

Answer 29

gastrocnemius; femur; calcaneus; plantar flexes foot, can flex knee when foot is dorsiflexed

Question 30

What muscle # 2 and its origin, insertion and action?

Answer 30

soleus; tibia & fibula; calcaneus; plantar flexes foot. important locomotor & postural muscle during walking, running, and dancing.