2Nd Test

Front 1

By location of the muscle’s origin and insertion

Back 1

Ex. Sterno (on the sternum)

Front 2

By shape of the muscle

Back 2

Ex. Deltoid (triangular)

Front 3

By action of the muscle

Back 3

Ex. Flexor and extensor (flexes or extends a bone)

Front 4

Frontalis

Back 4

Raises eyebrows

Front 5

Closes eyes, squints, blinks, winks

Back 5

Orbicularis oculi

Front 6

Orbicularis oris

Back 6

Closes mouth and protrudes the lips

Front 7

Buccinator

Back 7

Flattens the cheek, chews

Front 8

Zygomaticus

Back 8

Raises corners of the mouth

Front 9

Masseter

Back 9

Closes the jaw and elevates mandible

Front 10

Temporalis

Back 10

Synergist of the masseter, closes jaw

Front 11

Pulls the corners of the mouth inferiorly

Back 11

Platysma

Front 12

Flexes the neck, rotates the head

Back 12

Sternocleidomastoid

Front 13

Adducts and flexes the humerus

Back 13

Pectoralis major

Front 14

Raise rib cage during inhalation

Back 14

External intercostals

Front 15

Depress the rib cage to move air out of the lungs when you exhale forcibly

Back 15

Internal intercostals

Front 16

Flexes vertebral column and compresses abdominal contents

Back 16

Rectus abdominis

Front 17

Flex vertebral column; rotate trunk and bend it laterally

Back 17

External and internal obliques

Front 18

Compresses abdominal contents

Back 18

Transverse abdominis

Front 19

Elevates, depresses, adducts, and stabilizes the scapula

Back 19

Trapezius

Front 20

Extends and adducts the humerus

Back 20

Latissimus dorsi

Front 21

Backs extension

Back 21

Erector spinae

Front 22

Flexes the spine laterally

Back 22

Quadratus lumborum

Front 23

Arm abduction

Back 23

Deltoid

Front 24

Supinates forearm, flexes elbow

Back 24

Biceps brachii

Front 25

Elbow flexion

Back 25

Brachialis

Front 26

Weak muscle

Back 26

Brachioradialis

Front 27

Elbow extension

Back 27

Triceps brachii

Front 28

Hip extension

Back 28

Gluteus Maximus

Front 29

Hip abduction, steadies pelvis when walking

Back 29

Gluteus medius

Front 30

Hip flexion, keeps the upper body from falling backward when standing erect

Back 30

Iliopsoas

Front 31

Adducts the thighs

Back 31

Adductor muscles

Front 32

Thigh extension and knee flexion

Back 32

Hamstring group

Front 33

Ex of hamstring group

Back 33

Biceps femoris

Semitendinosus

Semimembranosus

Front 34

Flexes the thigh

Back 34

Sartorius

Front 35

Extends the knee

Back 35

Quadriceps group

Front 36

Ex. Of Quadriceps group

Back 36

Rectus femoris

Vastus muscles

Front 37

Dorsiflexion and foot inversion

Back 37

Tibialis anterior

Front 38

Toe extension and dorsiflexion of the foot

Back 38

Extensor digitorium Longus

Front 39

Plantar flexion, everts the foot

Back 39

Fibularis muscles

Front 40

Plantar flexion

Back 40

Soleus

Front 41

Three basic muscle types

Back 41

Skeletal

Cardiac

Smooth

Front 42

Contraction of muscles is due to the movement of _______

Back 42

Microfilaments

Front 43

Prefixes myo and mys refer to ______

Back 43

Muscle

Front 44

Prefix sarco refers to ____

Back 44

Flesh

Front 45

Cells are ______

Back 45

Multinucleate

Front 46

Have visible banding

Back 46

Striated

Front 47

Subject to conscious control

Back 47

Voluntary

Front 48

Cells are surrounded and bundled by _________

Back 48

Connective tissue

Front 49

Encloses a single muscle fiber

Back 49

Endomysium

Front 50

Wraps around a fascicle (bundle) of muscle fibers

Back 50

Perimysium

Front 51

Covers the entire skeletal muscle

Back 51

Epimysium

Front 52

On the outside of the epimysium

Back 52

Fascia