A&p1 Lab Final - Muscles

Front 1

Back 1

frontalis

Hint 1

muscle that raises the eyebrows and wrinkles the skin of the forehead

Front 2

Back 2

occipitalis

Hint 2

pulls the scalp posteriorly

Front 3

Back 3

orbicularis oculi

Hint 3

closes the eye

Front 4

Back 4

zygomaticus

Hint 4

pulls the corners of the mouth laterally (smile muscle); major and minor

Front 5

Back 5

risorius

Hint 5

draws corner of lips laterally; syngergist of zygomaticus

Front 6

Back 6

orbicularis oris

Hint 6

purses the lips (kiss muscle)

Front 7

Back 7

temporalis

Hint 7

closes the jaw; maintains the mandible at rest

Front 8

Back 8

masseter

Hint 8

prime mover of jaw closing; elevates the mandible

Front 9

Back 9

buccinator

Hint 9

compresses the cheek; keeps food between teeth when chewing

Front 10

Back 10

platysma

Hint 10

tenses neck skin; helps depress mandible

Front 11

Back 11

sternocleidomastoid

Hint 11

flexes the head and neck; rotates the head

Front 12

Back 12

digastric

Hint 12

opens the mouth and depresses the mandible

Front 13

Back 13

mylohyoid

Hint 13

elevates hyoid bone and floor of the mouth

Front 14

Back 14

stylohyoid

Hint 14

elevates and retracts the hyoid bone

Front 15

Back 15

sternohyoid

Hint 15

depresses the hyoid bone

Front 16

Back 16

sternothyroid

Hint 16

pulls larynx and hyoid bone inferiorly; deep to the sternohyoid

Front 17

Back 17

omohyoid

Hint 17

depresses and retracts the hyoid bone

Front 18

Back 18

thyrohyoid

Hint 18

depresses the hyoid bone or elevates the larynx if the hyoid is fixed

Front 19

Back 19

rectus abdominis

Hint 19

compresses abdominal contents and flexes the vertebral column

Front 20

Back 20

external oblique

Hint 20

compresses abdominal contents and laterally rotates the trunk; external layer

Front 21

Back 21

internal oblique

Hint 21

compresses abdominal contents and laterally rotates the trunk; internal layer

Front 22

Back 22

transversus abdominis

Hint 22

compresses abdominal contents

Front 23

Back 23

pectoralis major

Hint 23

prime mover of arm flexion and adduction; rotates arm medially

Front 24

Back 24

pectoralis minor

Hint 24

pulls scapula forward; pulls rib cage up (for inspiration)

Front 25

Back 25

serratus anterior

Hint 25

prime mover of scapula protraction; "boxer's muscle" (pushing, punching)

Front 26

Back 26

external intercostals

Hint 26

elevate the rib cage for inspiration

Front 27

Back 27

internal intercostals

Hint 27

depress the rib cage for expiration

Front 28

Back 28

diaphragm

Hint 28

prime mover of inspiration; flattens on contraction

Front 29

Back 29

deltoid

Hint 29

prime mover of arm abduction

Front 30

Back 30

subscapularis

Hint 30

rotates the humerus medially; rotator cuff muscle (stabilizes shoulder joint)

Front 31

Back 31

supraspinatus

Hint 31

initiates arm abduction; stabilizes shoulder joint (rotator cuff muscle)

Front 32

Back 32

infraspinatus

Hint 32

rotates the humerus laterally; stabilizes shoulder joint (rotator cuff muscle)

Front 33

Back 33

teres minor

Hint 33

same actions as the infraspinatus muscle; stabilizes shoulder joint (rotator cuff muscle)

Front 34

Back 34

teres major

Hint 34

extends, medially rotates, and adducts the humerus

Front 35

Back 35

erector spinae muscles

Hint 35

prime mover of back extension

Front 36

Back 36

trapezius

Hint 36

stabilizes, raises, retracts, and rotates the scapula; extends the head

Front 37

Back 37

levator scapulae

Hint 37

elevates and adducts the scapula

Front 38

Back 38

rhomboid major

Hint 38

stabilizes the scapula; major

Front 39

Back 39

rhomboid minor

Hint 39

stabilizes the scapula; minor

Front 40

Back 40

latissimus dorsi

Hint 40

prime mover of arm extension; powerful arm adductor; medially rotates arm (at the shoulder)

Front 41

Back 41

triceps brachii

Hint 41

prime mover of forearm extension

Front 42

Back 42

biceps brachii

Hint 42

flexes the elbow joint and supinates the forearm

Front 43

Back 43

brachialis

Hint 43

major forearm flexor

Front 44

Back 44

brachioradialis

Hint 44

synergist of forearm flexion

Front 45

Back 45

pronator teres

Hint 45

pronates the forearm

Front 46

Back 46

flexor carpi radialis

Hint 46

powerful wrist flexor that abducts the hand

Front 47

Back 47

palmaris longus

Hint 47

tenses skin of palm during hand movements

Front 48

Back 48

flexor carpi ulnaris

Hint 48

powerful wrist flexor that adducts the hand

Front 49

Back 49

extensor carpi ulnaris

Hint 49

extends and adducts the wrist

Front 50

Back 50

extensor digitorum

Hint 50

prime mover of finger extension

Front 51

Back 51

extensor carpi radialis longus

Hint 51

extends and abducts the wrist

Front 52

Back 52

gluteus maximus

Hint 52

extends the thigh

Front 53

Back 53

gluteus medius

Hint 53

abducts and medially rotates the thigh

Front 54

Back 54

tensor fasciae latae

Hint 54

steadies the knee; flexes and abducts the thigh

Front 55

Back 55

sartorius

Hint 55

flexes, abducts, and laterally rotates the thigh

Front 56

Back 56

iliopsoas

Hint 56

prime mover for thigh flexion

Front 57

Back 57

pectineus

Hint 57

flexes the thigh; assists the ilopsoas

Front 58

Back 58

adductor longus

Hint 58

adducts and medially rotates the thigh; along with adductor magnus

Front 59

Back 59

gracilis

Hint 59

adducts, flexes, and medially rotates the leg

Front 60

Back 60

adductor magnus

Hint 60

adducts and medially rotates the thigh; along with adductor longus

Front 61

Back 61

rectus femoris

Hint 61

flexes the thigh and extends the leg

Front 62

Back 62

vastus lateralis

Hint 62

extends and stabilizes the leg

Front 63

Back 63

vastus medialis

Hint 63

flexes the thigh and extends the leg; medial to the rectus femoris

Front 64

Back 64

biceps femoris

Hint 64

extends the thigh and flexes the leg

Front 65

Back 65

semitendinosus

Hint 65

flexes the leg (medial to biceps femoris)

Front 66

Back 66

semimembranosus

Hint 66

flexes the leg (deep to the semitendinosus)

Front 67

Back 67

tibialis anterior

Hint 67

prime mover of dorsiflexion

Front 68

Back 68

extensor digitorum longus

Hint 68

extends the toes

Front 69

Back 69

fibularis longus (peroneus)

Hint 69

plantar flexes and everts the foot

Front 70

Back 70

gastrocnemius

Hint 70

plantar flexes the foot

Front 71

Back 71

soleus

Hint 71

plantar flexes the foot; deep to the gastrocnemius