Muscle Anatomy

Question 1

Answer 1

Question 2

Muscle that closes eyes, squint, lowers eyebrows

Answer 2

orbicularis oris

Question 3

closes lips (purses, protrudes)

Answer 3

orbicularis oris

Question 4

Raises corners of mouth

Answer 4

Zygomaticus major

Question 5

Compress cheeks (whistling, sucking)

Answer 5

Buccinator

Question 6

Raise eyebrows

Answer 6

Frontalis

Question 7

Elevates mandible (as in closing mouth while chewing)

Answer 7

masseter

Question 8

elevates mandible

Answer 8

temporalis

Question 9

pulls lower lip down (as in frowning) depresses mandible

Answer 9

platysma

Question 10

Both sides; flexes neck (as in looking down) one side: cocks head

Answer 10

sternocleidomastoid

Question 11

What is the orgin and insertion of the sternocleidomastoid?

Answer 11

Origin: sternum, clavicle
Insertion: mastoid process

Question 12

Both sides: extends neck (as in looking up) one side: cocks head

Answer 12

splenius capitis

Question 13

Pulls ribs up toward origin, elevates ribcage to cause inspiration

Answer 13

external intercostals

Question 14

drops down to enlarge thoracic cavity, causing inspiration

Answer 14

diaphragm

Question 15

compress abdominal contents

Answer 15

transverse abdominus

Question 16

compress abdomen, flexes vertebral column

Answer 16

rectus abdominis

Question 17

What are the origin and insertion of the rectus abdominis

Answer 17

origin: puic symphysis
Insertion: xiphoid process

Question 18

sit-up with a twist

Answer 18

obliques

Question 19

Shoulder flexion

Answer 19

deltoid (anterior)

Question 20

shoulder abduction

Answer 20

deltoid (middle)

Question 21

Shoulder extension

Answer 21

deltoid (posterior)

Question 22

What is the origin and insertion of the deltoids?

Answer 22

Deltoid A - clavicle/ deltoid tuberosity of humerus
Deltoid M- acromion
Deltoid P - Scapular spine

Question 23

Flexion, adduction, medial rotation of humerus at shoulder (fist raise, bench press)

Answer 23

Pectoralis major

Question 24

What is the orgin and insertion of the pectoralis major

Answer 24

sternum
humerous head

Question 25

extention, adduction, medially rotation humerus at shoulder (lat pulls)

Answer 25

latissimus dorsi

Question 26

What is the origin and insertion of the latissimus dorsi?

Answer 26

inferior half of vertebral column and iliac crest humerous head

Question 27

Flexes elbow (as in bringing a spoon to your much)

Answer 27

brachialis

Question 28

pronates forearm to elbow (turning a doorknob)

Answer 28

pronator teres

Question 29

flexes elbow, supinates forearm (as in scooping up water)

Answer 29

biceps brachii

Question 30

what is the origin and insertion of the biceps brachii?

Answer 30

long head: supraglenoid tubercle of scapula short head: coracoid process of scapula radial tuberosity

Question 31

extends forearm at elbow (as in lowering a spoon back to the table

Answer 31

triceps brachii

Question 32

what are the orgin and insertion of the triceps brachii?

Answer 32

long head: infraglenoid tubercle of scapula lateral head: posterior proximal shaft of humerous medial head: posterior distal shaft of humerus / olecranon of ulna

Question 33

elbow flexion and supination

Answer 33

brachioradialis

Question 34

supination

Answer 34

supinator

Question 35

wrist extension

Answer 35

extensor carpiradialis

Question 36

wrist flexion

Answer 36

flexor carpi radialis/ ulnaris (depends on direction)

Question 37

wrist extension

Answer 37

extensor carpiulnaris

Question 38

extends digits of hand and wrist

Answer 38

extensor digitorum

Question 39

flexes digit of hand and wrist

Answer 39

flexor digitorum

Question 40

Flexes hip, adducts leg

Answer 40

pectineus

Question 41

flexes hup, adducts leg

Answer 41

adductur longus

Question 42

extends hip adducts leg

Answer 42

adductur magnus

Question 43

extends hip, roates leg laterally ( pushing down while climbing a stair)

Answer 43

gluteus maximus

Question 44

what is the origin and insertion of gluteus maximus?

Answer 44

origin: illium, sacrum, coccyx insertion: proximal femur

Question 45

adducts leg at hip, flexes knee

Answer 45

gracilis

Question 46

abducts leg at hip

Answer 46

tensor fasciae latae

Question 47

flexes hip, lifting leg to place on stair

Answer 47

iliopsoas

Question 48

flexes hip and flexes knee, laterally rotates thigh (into cross legged position)

Answer 48

sartorius

Question 49

hip abduction

Answer 49

gluteus medius and minimus

Question 50

hip rotation

Answer 50

piriformis

Question 51

extends hip, flexes knee, laterally rotates leg

Answer 51

biceps femoris

Question 52

What is the origin and insertion of biceps femoris?

Answer 52

ischial tuberosity proximal fibula

Question 53

extends hip, flexes knee

Answer 53

semimmembranosus/semitendinosus

Question 54

what is the origin and insertion of the semimembranosus/semitendinosus?

Answer 54

ischial tuberosity proximial tibia

Question 55

Extends knee

Answer 55

Vastus lateralis, intermedius, medialis

Question 56

what is the origin and insertion of the vastus muscle?

Answer 56

proximal femur tibial tuberosity and platella

Question 57

extends knee, flexes hip(kicking a ball)

Answer 57

rectus femoris

Question 58

what is the origin and insertion of the rectus femoris?

Answer 58

ASIS (crosses over hip joint) tibial tuberosity of platella

Question 59

planter flexion at ankle

Answer 59

soleus

Question 60

what is the origin and insertion of the soleus?

Answer 60

proximial tibia and fibula calcaneus

Question 61

planter flexion at ankle, flexes knee

Answer 61

gastrocnemius

Question 62

What is the insertion and orgin of the gastrocnemius?

Answer 62

distal femur calcaneus

Question 63

dorsiflexion and inversion at ankle

Answer 63

tibialis anterior

Question 64

what is the origin and insertion of the tibialis anterior?

Answer 64

proximal tibia metatarsal 1