Muscles

Question 1

Frontalis

Answer 1

Origin: Frontal Aponeurosis
Insertion: Skin of Eyebrow
Action: Raises eyebrow

Question 2

Orbicularis oculi

Answer 2

Origin: Frontal bone and Maxilla
Insertion: Skin around eye
Action: Closes eye/squints

Question 3

Orbicularis oris

Answer 3

Origin: Muscles near mouth
Insertion: Skin at corner of mouth
Action: Closes/puckers mouth

Question 4

Masseter

Answer 4

Origin: Zygomatic arch
Insertion:Mandible
Action: Elevates Mandible

Question 5

Temporalis

Answer 5

Origin: Temporal Bone
Insertion: Mandible
Action: Elevates Mandible

Question 6

Sternocleidomastoid

Answer 6

Origin: Sternum and clavicle
Insertion: Mastoid processof temporal bone
Action: (both contracting) head to chest. (one contracts) head rotates

Question 7

Zygomaticus major

Answer 7

Origin: Anterior zygomatic arch
Insertion: muscles around mouth
Action: Moves corners of mouth superiorly and posteriorly

Question 8

Zygomaticus minor

Answer 8

Origin: Zygomatic bone
Insertion: Skin of the upper lip
Action: Moves corners of mouth superiorly and posteriorly

Question 9

Splenius capitis

Answer 9

Origin: Spinous process, C7-T3
Insertion: Mastoid process
Action: Extend, rotate, laterally flex head

Question 10

Rectus abdominis

Answer 10

Origin: Pubis
Insertion: Xiphoid process
Action:Compresses abdomen, flexes vertebral column

Question 11

External oblique

Answer 11

Origin: Lower 8 ribs
Insertion:Iliac Crest
Action: (Both contract) compresses abdomen. (one contracts) vertebral column flexed to side.

Question 12

Internal oblique

Answer 12

Origin: Iliac Crest
Insertion: Costal cartilages of inferior 3-4 ribs
Action: (Both contract) compresses abdomen. (one contracts) vertebral column flexed to side.

Question 13

Transverse abdominus

Answer 13

Origin: Iliac crest,
Insertion: Xiphoid process, line alba, pubis
Action: Compresses abdomen

Question 14

Trapezius

Answer 14

Origin: Occipital bone, vertebral spinous processes
Insertion: clavicle, scapula
Action: Elevates clavicle, adducts scapula, and extends head

Question 15

Rhomboideus major

deep muscle

Answer 15

Origin: Vertebral spinous processes
Insertion: Scapula
Action: Adducts scapula and rotates it downwards

Question 16

Serratus anterior

Answer 16

Origin: Ribs
Insertion: Scapula
Action: Rotates scapula upward and laterally rotates it downwards

Question 17

Pectoralis minor

deep muscle

Answer 17

Origin: Ribs 3-5
Insertion: Corocoid of scapula
Action: Depresses and moves scapula anteriorly

Question 18

Latissimus dorsi

Answer 18

Origin: Ribs, inferior 6 vertebral spines
Insertion: Humerus
Action: Extends and adducts arm

Question 19

Infraspinatus

Answer 19

Origin: Scapula
Insertion: Humerus
Action: Rotates arm laterally

Question 20

Subscapularis

Answer 20

Origin: Scapula
Insertion: Humerus
Action: Rotates humerus medially

Question 21

Supraspinatus

Answer 21

Origin: Scapula
Insertion: Humerus
Action: Abducts arm

Question 22

Teres minor

Answer 22

Origin: Lateral border of scapula
Insertion: Humerus
Action: Rotates arm laterally

Question 23

Gluteus maximus

Answer 23

Origin: Iliac Crest
Insertion: Femur
Action: Extends and rotates femur laterally

Question 24

Tensor fascia lata

Answer 24

Origin: Iliac Crest
Insertion: Tibia by way of fascia lat a
Action: Flexes and adducts femur

Question 25

Adductor magnus

Answer 25

Origin: Pubis Insertion: Linea aspera of femur Action: Flexes and adducts femur

Question 26

Gracilis

Answer 26

Origin: Pubis Insertion: Tibia Action: Flexes leg

Question 27

Sartorius

Answer 27

Origin: Ilium Insertion: Tibia Action: Flexes leg

Question 28

Quadriceps | 1 - Rectus femoris

Answer 28

Origin: Ilium Insertion: Patella Action: Extends leg

Question 29

Quadriceps | 2 - Vastus medialis

Answer 29

Origin: Linea aspera of femur Insertion: Tibia by way of patellar ligament Action: Extends leg

Question 30

Quadriceps | 3 - Vastus lateralis

Answer 30

Origin: Femur Insertion: Tibia by way of patellar ligament Action: Extends leg

Question 31

Quadriceps | 4 - Vastus intermedius (Deep)

Answer 31

Origin: Femur Insertion: Tibia by way of patellar ligament Action: Extends leg

Question 32

Hamstrings | 1 - Biceps femoris

Answer 32

Origin: Ischium Insertion: Tibia Action: Flexes leg

Question 33

Hamstrings | 2 - Semitendinosus

Answer 33

Origin: Ischium Insertion: Tibia Action: Flexes leg

Question 34

Hamstrings | 3 - Semimembranosus

Answer 34

Origin: Ischium Insertion: Tibia Action: Flexes leg

Question 35

Gastrocnemius

Answer 35

Origin: Femur Insertion: Calcaneus by way of Achilles tendon Action: Plantaar Flexion

Question 36

Soleus

Answer 36

Origin: Fibula Insertion: Calcaneus by way of Achilles tendon Action: Plantar Flexion

Question 37

Tibialis anterior

Answer 37

Origin: Tibia Insertion: First Metatarsal Action: Dorsiflexion of foot

Question 38

Pectoralis major

Answer 38

Origin: Sternum Insertion: Humerus Action: Flexes and adducts arm

Question 39

Teres major

Answer 39

Origin: Scapula Insertion: Humerus Action: Extends arm

Question 40

Latissimus dorsi

Answer 40

Origin: Ribs Insertion: Humerus Action: Extends and adducts arm

Question 41

Deltoid

Answer 41

Origin: Clavicle Insertion: Humerus Action: Abducts, flexes, and extends arm

Question 42

Biceps brachii

Answer 42

Origin: Scapula Insertion: Radial tuberosity Action: Flexes forearm

Question 43

Brachialis

Answer 43

Origin: Humerus Insertion:Ulna Action: Flexes forearm

Question 44

Brachioradialis

Answer 44

Origin: Humerus Insertion: Radius Action: Flexes forearm

Question 45

Triceps brachii

Answer 45

Origin: Humerus Insertion: Olecranon of ulna Action: Extends forearm