Chapter 11 - Muscle Structure Flashcards

1
Q

name the muscle.

A

frontalis
*forehead is “frontal”, lies on the frontal bone.

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2
Q

name the muscle labeled in yellow.

A

orbicularis oculi. it an “orbicular” shape that “orbits” the eye. “oculi” means eye. think of bin-oculars.

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3
Q

name the muscle.

A

orbicularis oris
- orbits the mouth

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4
Q

name the muscle labeled in lavender.

A

mentalis
- mental is chin. imagine the thinking pose with your fist on your chin, in mental thought

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5
Q

name the muscle in green.

A

masseter
- mastication is chewing. masseter means the chewing muscle.

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5
Q

name the muscle.

A

depressor anguli oris
- to lower the corner of the mouth
- they also look like triangles
*anguli means “corner”

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6
Q

name the muscle.

A

depressor labii inferioris
- to pull down the lips, lower

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7
Q

name the muscle.

A

risorius
- “la risa” is laughter in spanish

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8
Q

name the muscle.

A

levator labii superioris.
- to lift the lips towards the head

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9
Q

name the muscle labeled in yellow

A

buccinator
- attaches to the orbicularis oris, allows us to push air out of the mouth when playing an instrument.

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10
Q

name the muscle.

A

occipitalis. lies on the occipital bone in the occipital region.

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11
Q

name each of the the 3 muscles.

A

*auricularis means “outer ear”. think auditory.
- auricularis anterior
- auricularis superior
- auricularis posterior

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12
Q

go over the chart for naming muscles…

muscles are named for size, shape, direction of fibers, location, number of origins, origin and insertion, and action.

A
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13
Q

name both the sets of muscles

A

zygomaticus minor (top pair)
zygomaticus major (bottom pair)
*similar to the teres m&m and the rhomboid m&m, the major is below the minor.

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14
Q

name the muscle

A

levator anguli oris
- to lift the corners of the mouth
*anguli means “corner”

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15
Q

name the muscle.

A

temporalis
- lies on the temporal bone.
- a major muscle of mastication

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16
Q

name the muscle

A

sternocleidomastoid (SCM)
- attaches at sternum, clavicle, and mastoid process.

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17
Q

name the muscle

A

levator scapulae
- lifts the scapulae. parallel with the rhomboids.
- deep to the scalenes

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18
Q

the suboccipital muscles. you don’t need to know these, but they’re pretty cool.

A

there’s 4 pairs that attach to the occipital bone, atlas, axis, and cervical vertebrae

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19
Q

the semispinalis capitus. you don’t need to know this, but it’s cool.

A

good stuff. semi means just to the side, spinous is of the spine

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20
Q

the longissimus capitus. you don’t need to know this…

A

the top most portion of the erector spinae muscle groups

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21
Q

a cool layering of neck muscles

A
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22
Q

name the muscle

A

splenius capitus
- splenius means “bandage”
- this is the muscle that babies develop to hold their heads up

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23
Q

name the muscle.

A

sternohyoid
- attaches the sternum to the hyoid bone.

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24
Q

name the muscle

A

omohyoid
- attaches the scapula to the hyoid bone
- omo refers to the scapula

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25
Q

name the muscles.

A

external intercostal muscle
- attaches each rib to another
- runs from spine all the way to where ribs become cartilage.
- fibers are angled posteriorly/superiorly, or anterior/inferior.
- elevates the ribs in inspiration
*Intercostals create a pressure chamber wall for respiration

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26
Q

name the muscles.

A

internal intercostal muscle
- attaches each rib to another
- fibers run in opposite direction from external intercostal muscles.
- runs from sternum all the way to the angle of the ribs on the posterior side. about 3/4 of the way from sternum to spine.
- lowers the ribs in expiration
*Intercostals create a pressure chamber wall for respiration

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27
Q

also have an innermost intercostal…

A
  • runs with internal intercostals, but separate.
    *Intercostals create a pressure chamber wall for respiration
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28
Q

name the muscle

A

transversus thoracis

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29
Q

name the muscle.
*what is the name of the fibrous midline?

A

rectus abdominus
*linea alba, or “white line”

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30
Q

name the muscle.

A

external oblique
- fibers run posterior and superior.
- same direction as external intercostals
- does not attach to aponeurosis on posterior side, but does form an aponeurosis on front that runs anterior on the rectus abdominus.

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31
Q

name the muscle

A

internal oblique
- attaches from the posterior aponeurosis to the anterior aponeurosis
- muscle fibers run the same as internal intercostals, anterior/superior or posterior/inferior.
- front aponeurosis splits in two and goes anterior & posterior to rectus abdominis.

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32
Q

name the muscle

A

transversus abdominis
- runs from the posterior fascia (thoracolumbar fascia) to the anterior aponeurosis
- similar to the innermost intercostals.
- front aponeurosis stays posterior to other aponeurosis and behind rectus abdominus.

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33
Q

name the 3 muscles. what is their name combined?

A
  • psoas minor
  • psoas major
  • iliacus
    *all together make iliopsoas
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34
Q

name the muscle

A

quadratus lumborum
- square shaped, lumbar vertebrae

35
Q

name the muscle

36
Q

name the muscle in all green.

A

longissimus thoracis
- longest muscles, insert into thoracic region.
(also a longissimus capitis and longissimus cervicis)

37
Q

name the muscle.

A

rhomboid minor

38
Q

name the muscle

A

rhomboid major

39
Q

name the muscle

A

latissimus dorsi
- latissimus means “broad”
- dorsi is back.
*attaches the sacrum to the intertubercular groove on humerus

40
Q

name the muscle

A

serratus anterior
- inserts on anterior side of scapula to ribs.

41
Q

name the muscle

A

-serratus posterior superior
-serratus posterior inferior

42
Q

name the muscle

A

supraspinatus
- above the spine of the scapula

43
Q

name the muscle

A

infraspinatus

44
Q

name the muscle

A

teres minor

45
Q

name the muscle

A

subscapularis

46
Q

name the muscle

47
Q

name the larger muscle

A

pectoralis major

48
Q

name the smaller muscle

A

pectoralis minor

49
Q

name the muscle in green

A

teres major

50
Q

name the muscle (deltoid removed)

A

biceps brachii
- bi = two
- cepts = head
- brachii = upper arm
- a very good supinator of the arm

51
Q

name the muscle

A

coracobrachialis
- coracoid process to brachial region

52
Q

name the muscle (deepest)

A

brachialis
- deep to biceps brachii

53
Q

name the muscle

A

brachioradialis
- on lateral side

54
Q

name the muscle

A

triceps brachii

55
Q

name the muscle in green

A

pronator teres (PT)
- pronates to the index finger

56
Q

name the muscle in yellow

A

palmaris longus (PL)
- runs to the aponeurosis on palm
- like fan of palm tree branch

57
Q

name the muscle in orange

A

flexor carpi radialis (FCR)
- flexor muscle
- carpi = runs to wrist
- radialis = on radial side

58
Q

name the muscle in blue

A

flexor carpi ulnaris (FCU)
- flexor
- carpi = goes to wrist
- ulnaris = on ulnar side

59
Q
A

extensor carpi ulnaris (ECU)
- paired opposite of flexor carpi ulnaris

60
Q

name the muscle

A

flexor digitorum superficialis (FDS)
- flexes the digits superficially
- named superficialis because there is also a deep flexor digitorum…
- deep to 3 flexor muscles

61
Q

name the muscle

A

extensor digitorum (ED)
- extends the digits

62
Q

Extensor digiti minimi

63
Q

name the muscles in green and purple

A

there are two extensor carpii radialus:
- extensor carpii radialis longus
- extensor carpii radialis brevis
**the longus is snug with the brachioradialus.

64
Q

name the muscle

A

supinator
- under the brachioradialis
- fibers run opposite of the pronator
- synergist with the brachioradialis for supination

65
Q

name the deep muscles

A
  • abductor pollicus longus (ABove the brevis, runs to thumb, longer way to travel)
  • extensor pollicus brevis (in extensor family, runs to thumb, shorter)
  • supinator
66
Q

name the muscle

A

extensor digiti minimi
- runs to the pinky

67
Q

name the muscle

68
Q

name the muscle

69
Q

name the muscle

A

vastus lateralis
- vast and lateral

70
Q

name the muscle

A

rectus femoris

71
Q

name the muscle

A

vastus medialis

72
Q

name the muscle in pink deep to the muscle in blue.

A

vastus intermedius

73
Q

name the muscle

A

adductor longus
- notice how it inserts halfway along the femur

74
Q

name the 3 glute muscles

A
  • gluteus maximus
  • gluteus medius
  • gluteus minimus
75
Q

name the muscle in yellow and the band in green.

A
  • tensor fascia latae
  • iliotibial band
    *tenses the facia on the lateral side
76
Q

name the muscles (view of left inner thigh)

A
  • adductor longus
  • adductor magnus
  • gracilis
77
Q

name the hamstrings

A
  • biceps femoris (most lateral)
  • semitendinosus (lies on top of semimembranosus, more tendon-like.)
  • semimembranosus (under semitendinosus, M for Medial, more membrane and flat)
78
Q

name the calves

A
  • gastrocnemius
  • soleus
79
Q

name the deep posterior muscle

80
Q

name the deep posterior shin muscles. (right posterior view)

A

flexor digitorum longus
- (like the FD in forearm). there is an extensor opposite. medial to tibialis posterior

tibialis posterior
- (lies along the tibia). there’s an anterior opposite. central and deep.

flexor hallucis longus
- big chunky muscle, more lateral than tibialis posterior

*to flex the toes is to scrunch them up
*to extend the toes is to reach them out

*notice that the popliteus runs medially and inferiorly = right leg. both popliteus together make a V shape

81
Q

name both muscles

A
  • fibularis longus
  • fibularis brevis
82
Q

name the muscle

A

tibialis anterior

83
Q

name the muscles

A
  • tibialis anterior
  • extensor hallucis longus
  • extensor digitorum longus
84
Q

name the muscles of the foot

A
  • abductor hallucis
  • flexor hallucis brevis (deep to the longus)
  • lumbricals (lumbrical means “worm”, so they’re the wormy muscles. also have lumbricals in fingers.)
  • flexor digitorum brevis (the longus is deep)
  • abductor digiti minimi