Lab Practical 2

Question 1

Deltoid Origin

Answer 1

clavicle, acromion and spine of scapula

Question 2

Deltoid Insertion

Answer 2

deltoid tuberosity of humerus

Question 3

Action of Deltoid

Answer 3

flexion and extension, medial and lateral rotation and abduction of arm at shoulder

Question 4

Pectoralis Major Origin

Answer 4

clavicle, sternum, ribs 2-6

Question 5

Pectoralis Major Insertion

Answer 5

Intertubercular groove and greater tubercle of humerus

Question 6

Action of Pectoralis Major

Answer 6

flexes, adducts and medially rotates arm at shoulder

Question 7

Triceps Brachii Origin

Answer 7

infraglenoid tubercle of scapula, dorsal surface of humerus

Question 8

Triceps Brachii Insertion

Answer 8

olecranon process of ulna

Question 9

Action of Triceps Brachii

Answer 9

extends arm at shoulder and extends arm at elbow

Question 10

Trapezius Origin

Answer 10

nuchal crest of occipital and spinous processes of cervical and thoracic vertebrae

Question 11

Trapezius Insertion

Answer 11

clavicle, acromion and spine of scapula

Question 12

Action of Trapezius

Answer 12

elevation, rotation, adduction, and depression of scapula

Question 13

Brachialis Origin

Answer 13

distal shaft of humerus

Question 14

Brachialis Insertion

Answer 14

proximal ulna including coronoid process

Question 15

Action of Brachialis

Answer 15

flexes the forearm at elbow

Question 16

Flexor Carpi Ulnaris Origin

Answer 16

medial epicondyle of the humerus and olecranon process of the ulna

Question 17

Flexor Carpi Ulnaris Insertion

Answer 17

carpals and base of metacarpal V

Question 18

Action of Flexor Carpi Ulnaris

Answer 18

flexes wrist, adducts hand

Question 19

Extensor Carpi Ulnaris Origin

Answer 19

lateral epicondyle of the humerus

Question 20

Extensor Carpi Ulnaris Insertion

Answer 20

medial side of the base of metacarpal V

Question 21

Action of Extensor Carpi Ulnaris

Answer 21

extend the wrist, adducts the hand

Question 22

Rectus Abdominis Origin

Answer 22

pubic crest and symphysis

Question 23

Rectus Abdominis Insertion

Answer 23

costal cartilage of ribs 5-7, xiphoid process of sternum

Question 24

Action of Rectus Abdominis

Answer 24

flexes the vertebral column, compress abdomen

Question 25

Rectus Femoris Origin

Answer 25

illium near acetabulum

Question 26

Rectus Femoris Insertion

Answer 26

tibial tuberosity via quadriceps tendon and patellar ligament

Question 27

Action of Rectus Femoris

Answer 27

extends lower leg at knee, flexes thigh at hip

Question 28

Gluteus Maximus Origin

Answer 28

illium, sacrum, and coccyx

Question 29

Gluteus Maximus Insertion

Answer 29

posterior proximal shaft and part of greater trochanter of femur

Question 30

Action of Gluteus Maximus

Answer 30

extends, laterally rotates and abducts thigh

Question 31

Semimembranosus Origin

Answer 31

ischial tuberosity

Question 32

Semimembranosus Insertion

Answer 32

proximal medial tibial surface

Question 33

Action of Semimembranosus

Answer 33

flexes lower leg at knee, extends thigh at hip

Question 34

Vastus Lateralis Origin

Answer 34

greater trochanter of femur

Question 35

Vastus Lateralis Insertion

Answer 35

tibial tuberosity via quadriceps tendon and patellar ligament

Question 36

Action of Vastus Lateralis

Answer 36

extends lower leg at knee

Question 37

Tibialis Anterior Origin

Answer 37

proximal tibia and interosseous membrane between tibia and fibula

Question 38

Tibialis Anterior Insertion

Answer 38

first metatarsal and medial cuneiform

Question 39

Action of Tibialis Anterior

Answer 39

dorsiflexion and inversion of foot

Question 40

Soleus Origin

Answer 40

head of fibula and medial tibia

Question 41

Soleus Insertion

Answer 41

calcaneus via Achilles tendon

Question 42

Action of Soleus

Answer 42

plantar flexes foot