Muscles For Lab Cl

Front 1

Frontalis action

Back 1

Frontalis raises eyebrows

Front 2

Occipitalis action

Back 2

There is little control/movement of this muscle

Front 3

Orbicularis oculi action

Back 3

Orbicularis oculi closes eye; blinking, squinting

Front 4

Orbicularis oris action

Back 4

Orbicularis oris closes mouth; "kissing" muscle

Front 5

List the muscles of facial expression

Back 5

Frontalis, occipitalis, orbicularis oculi, orbicularis oris, zygomaticus major & minor muscles

Front 6

Zygomaticus major & minor muscles action

Back 6

Zygomaticus major & minor muscles raise corner of mouth; "smiling" muscle

Front 7

List muscles of mastication or muscles that move the lower jaw

Back 7

Temporalis, masseter, buccinator

Front 8

Temporalis action

Back 8

Temporalis elevates mandible to maxillae to close jaw

Front 9

Buccinator action

Back 9

Compresses cheek; "whistling" muscle

Front 10

Platysma action

Back 10

Depresses mandible; lowers lip to cause mouth to sag

Front 11

What connects the frontalis and occipitalis?

Back 11

The epicranius aponeurosis connects them.

Front 12

What are fasciae made of?

Back 12

Connective tissue

Front 13

What cover muscles?

Back 13

A fascia

Front 14

What control muscle actions? (these structures)

Back 14

Nerves control muscles

Front 15

List the neck muscles that move the head.

Back 15

Sternocleidomastoid, trapezius, platysma

Front 16

What action occurs when both sides of sternocleidomastoid contract together?

Back 16

Accomplish flexion of head and neck to chest when both sides contract togetherSternocleidomastoid accomplishes flexion of head and neck to chest when both sides contract together; rotation of head when acting independently

Front 17

What action occurs when both sides of sternocleidomastoid act independently?

Back 17

Rotation of head when acting independently

Front 18

How many heads of attachment does the origin of the sternocleidomastoid have?

Back 18

Two heads of attachment

Front 19

Where are the two heads of attachment for the origin of the sternocleidomastoid muscle?

Back 19

Sternal and clavicular heads

Front 20

Action of trapezius

Back 20

Extends neck, adducts & stabilizes scapula

Front 21

Name muscles that act on the abdominal wall

Back 21

External oblique, internal oblique, rectus abdominis, transversus abdominis

Front 22

Action of external oblique

Back 22

External oblique does abdominal trunk compression and flexion

Front 23

Action of internal oblique

Back 23

Abdominal trunk compression and flexion

Front 24

What do the muscle fibers of the internal oblique orient themselves to look like?

Back 24

Muscle fibers orient like spread fingers

Front 25

Action of transversus abdominis

Back 25

Abdominal trunk compression and flexion

Front 26

List muscles of the thorax that are used in breathing

Back 26

Diaphragm, external intercostals, internal intercostals

Front 27

Action of diaphragm

Back 27

Contracts during inspiration

Front 28

Scientific term for "breathing in"

Back 28

Inspiration

Front 29

Where is the diaphragm's tendon?

Back 29

Central tendon

Front 30

When the diaphragm relaxes, it acts like a WHAT to exhale air?

Back 30

Acts like a piston to exhale air

Front 31

Action of internal oblique

Back 31

contractions cause forceful expirations, that DECREASE volume of the thoracic cavity

Front 32

Scientific term for "breathing out"

Back 32

Expiration

Front 33

External intercostals action

Back 33

Contraction during inspiration causes INCREASED lateral and front to back volume of the thoracic cavity

Front 34

What do the external intercostals do to the rib cage?

Back 34

These muscles lift the rib cage to increase thoracic volume (inhaling or inspiration)

Front 35

What do the internal intercostals do to the rib cage?

Back 35

These muscles collapse the rib cage, reducing thoracic volume to produce forceful exhalations or expirations

Front 36

List the muscles of the shoulder, upper thorax, and back that move the arm

Back 36

Pectoralis major, deltoid, and latissimus dorsi

Front 37

Action of pectoralis major

Back 37

Flexion, adduction, medial rotation

Front 38

Where are the heads of the pectoralis major?

Back 38

Clavicular and sternal heads

Front 39

Action of deltoid

Back 39

Abduction, or parts that can variously flex, extend, or rotate the humerus

Front 40

Latissimus dorsi actions

Back 40

Extension, adduction, and medial rotation

Front 41

List the muscles move the forearm.

Back 41

Biceps brachii, triceps brachii, brachialis

Front 42

If biceps brachii is a prime mover, what is its synergist?

Back 42

Brachialis is its synergist

Front 43

Actions of biceps brachii and brachialis

Back 43

Forearm flexors

Front 44

Function of triceps brachii

Back 44

Forearm extensor

Front 45

Which group of muscles are you NOT required to be able to identify?

Back 45

The muscles that move the wrist, hand, and fingers

Front 46

List the muscles that move the thigh (you can list some of them as a muscle group)

Back 46

Poas major
Iliacus
Gluteus maximus
Gracilis
Pectineus
Adductor muscle group

Front 47

Psoas major actions

Back 47

Flexes trunk on thigh; flexion of hip or thigh on pelvis

Front 48

Where is this muscle located?

Back 48

Deep in abdominal cavity

Front 49

Iliacus action

Back 49

Iliacus flexes the thigh with the psoas muscle

Front 50

Psoas muscle and iliacus merge to make up the _________________, a combined muscle.

Back 50

Iliopsoas

Front 51

Gluetus maximus is the largest and _____________ of the three gluteal /buttocks muscles

Back 51

outermost of the three gluteals

Front 52

Name the three gluteal muscles

Back 52

Gluteus medius
minimus
and maximus

Front 53

Gluteus maximus action

Back 53

Gluteus maximus performs hip/thigh extension

Front 54

Action of gracilis

Back 54

Gracilis adducts thigh

Front 55

Where is gracilis found?

Back 55

Gracilis found on the most medial edge of the thigh

Front 56

Action of pectineus

Back 56

Adducts thigh

Front 57

Pectineus is found just lateral to what muscle?

Back 57

Found just lateral to adductus longus.

Front 58

Adductor muscle group:

Back 58

Adductor longus
Adductor brevis
Adductor magnus

Front 59

Actions of adductor muscle group

Back 59

Adductor muscle group performs adduction, lateral rotation, and flexion of the thigh

Front 60

List the muscles that move the leg (some you can just list in muscle groups)

Back 60

Adductor muscle group
Sartorius
Knee extensors
Thigh extensors/knee flexors

Front 61

Actions of the sartorius

Back 61

Sartorius flexes, abducts, laterally rotates thigh/leg

Front 62

What is the sartorius called and why?

Back 62

Called the "tailor's muscle" because it helps the tailor squat when making a measurement

Front 63

What's the longest muscle in the body?

Back 63

Longest is sartorius

Front 64

Rectus femoris action

Back 64

Rectus femoris is a knee extensor (also flexes thigh at hip)

Front 65

Which muscles does the quadriceps femoris group include?

Back 65

Rectus femoris, and the three vastus muscles

Front 66

Knee extensors:

Back 66

Rectus femoris
Vastus lateralis
Vastus medialis
Vastus intermedius

Front 67

Vastus lateralis action

Back 67

Vastus lateralis is a knee extensor

Front 68

Vastus medialis

Back 68

Vastus medialis is a knee extensor

Front 69

Vastus intermedius action

Back 69

Vastus intermedius is a knee extensor

Front 70

Where is the vastus intermedius in relation to the rectus femoris?

Back 70

Vastus intermedius is deep to the rectus femoris

Front 71

Thigh extensors/knee flexers:

Back 71

Biceps femoris
Semitendinosus
Semimembranosus

Front 72

Muscles that move the foot and toes

Back 72

Tibialis anterior
Extensor digitorum longus
Fibularis long & brevis
Gastrocnemius
Soleus

Front 73

Anterior muscles that move the foot and toes:

Back 73

Tibialis anterior
Extensor digitorum longus

Front 74

Action of tibialis anterior

Back 74

Tibialis anterior performs dorsiflexion of foot/ankle

Front 75

Action of extensor digitorum longus

Back 75

Extensor digitorum longus performs dorsiflexion of foot/ankle; toe extension

Front 76

Where is the extensor digitorum longus in comparison to the tibialis anterior

Back 76

Found slightly lateral & just deep/inferior to tibialis anterior

Front 77

The extensor digitorum longus has separate __________ for each toe

Back 77

Separate tendons for each toe

Front 78

Lateral muscles that move foot & toes:

Back 78

Fibularis (peroneus) longus & brevis

Front 79

Action of fibularis (peroneus) longus & brevis

Back 79

Fibularis longus and brevis plantar flex the foot/ankle

Front 80

This attaches the gastrocnemius to the ____________ bone.

Back 80

The calcaneal tendon attaches the gastrocnemius to the calcaneal bone

Front 81

Posterior muscles that move foot and toes:

Back 81

Gastrocnemius
Soleus

Front 82

Action of gastrocnemius

Back 82

Gastrocnemius plantar flexes foot/ankle

Front 83

Action of the soleus

Back 83

Soleus plantar flexes foot/ankle

Front 84

Where is the soleus in relation to the gastrocnemius?

Back 84

Deep to the gastrocnemius

Front 85

A large part of the soleus is __________.

Back 85

a large part of the soleus is tendon

Front 86

Study figure 8.5 of a neuromuscular junction

Back 86

check

Front 87

What is the lab CL over?

Back 87

Handouts (apparently lecture notes and the one sheet he gave us) but no physiology!
ADAM
Real-life models
Neuromuscular junction

Front 88

Basic microscopic functional (contractile) unit of a muscle

Back 88

Sarcomere

Front 89

Fine, straight filaments made of special muscle proteins

Back 89

Myofilaments