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Axial muscles Flashcards

Axial Muscles (59 cards)

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0
Q

What is the action is the occipitofrontalis?

A

Scalp & eyebrows

Wrinkles skin of forehead

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1
Q

What muscles are a part of the epicranius muscle?

A
  • frontal belly of occipitofrontalis

- occipital belly of occipitofrontalis

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2
Q

What is the action of the occipital belly of occipitofrontalus?

A

Retracts scalp

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3
Q

What is the O/I of the epicranius?

A

O/I: extends over cranium. Attaches to nuchal lines & soft tissue of eyebrows (epicranial aponeurosis)

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4
Q

What are the paired muscles raises upper lip to “snarl”?

A

Levator Labii Superioris

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5
Q

Where is the O/I of the Levator Labii Superioris?

A

O: lower margin of orbit above the infraorbital foramen
I: skin & muscles of upper lip

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6
Q

What muscle is located inside and raises upper eyelid?

EX) Surprise!

A

Levator Palpebrae Superioris

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7
Q

Where are the O/I of the Levator Palpebrae Superioris?

A

O: Lesser wing of sphenoid
I: Upper eyelid CT

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8
Q

What muscle surrounds the orbit and controls blinking/squinting?

A

Orbicularis Oculi

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9
Q

What muscle moves the mouth angles up to smile/laugh?

A

Zygomaticus Major

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10
Q

Where are the O/I of the Orbicularis Oculi?

A

O: Medial orbit
I: skin around eye

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11
Q

Where are the O/I of the Zygomaticus Major?

A

O: Zygomatic Bone
I: Orbicularis Oris muscle @ corners of mouth

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12
Q

What muscles surrounds the mouth and closes the lips when pouting/kissing?

A

Orbicularis Oris

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13
Q

Where are the O/I of the Orbicularis Oris?

A

O: Mandible & Maxilla
I: Soft Tissues at mouth corners

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14
Q

Which muscle “flares the nostrils”?

A

Nasalis

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15
Q

Which muscle wrinkles the nose?

A

Procerus

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16
Q

What are the cheek muscles?

A

Buccinator

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17
Q

What muscle makes the mouth frown by pulling corners laterally/medially

A

Depressor Anguli Oris

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18
Q

What muscle draws the lip muscles inferiorily?

A

Depressor Labii Inferioris

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19
Q

What muscle draws superiorly & laterally?

“smile”?

A

Levator Anguli Oris

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20
Q

What muscle makes the lips “pout” and wrinkles the chin?

A

Mentalis

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21
Q

Which muscle “tenses the lips” laterally?

A

Risorius

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22
Q

Where are the O/I for the Buccinator?

A

O: alveolar processes of mandible/maxilla
I: Oribularis Oris (deep muscles around mouth)

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23
Q

What muscle tenses the skin of the neck?

24
Where are the O/I for the Platysma?
O: between 2nd rib & acromion of scapula I: mandible & muscles around mouth/chin/jaw
25
Which muscle elevates & retracts mandible?
Temporalis
26
Where are the O/I of the Temporalis?
O: Temporal Lines I: Coronoid Process of Mandible
27
Which muscle protracts the mandible?
Masseter
28
Where are the O/I of the Masseter?
O: Zygomatic Arch I: angle/ramus of mandible
29
Where are the O/I of the Sternocleidomastoid?
2-heads O: manubrium & medial clavicle I: mastoid process of temporal
30
Which muscle turns neck/bend head laterally?
Sternocleidomastoid
31
Which muscle depresses the Hyoid & Larynx?
Sternohyoid
32
Where are the O/I of the Sternohyoid?
O: clavical & manubrium I: hyoid
33
what is the white layer of the eye called?
Sclera
34
Which muscle of the Masticatory system is the strongest & most important?
Masseter
35
What are the 2 types of Extrinsic Eye muscles?
Rectus (Medial, Lateral, Superior, Inferior) | Oblique (Inferior & Superior)
36
Which 4 muscles are part of the Infrahyoid Group?
Omohyoid Sternohyoid Sternothyroid Thyrohyoid
37
What 4 muscles are a part of the Suprahyoid muscles?
Digastric Geniohyoid Mylohyoid Stylohyoid
38
What muscle depresses the mandible and elevates the hyoid?
Digastric
39
Which muscles elevate the hyoid?
Geniohyoid & Stylohyoid
40
What are the 4, sheet like, muscles of the abdominal Wall? | *TIRE
Transverse Abdominus Internal Oblique Rectus Abdominus External Oblique
41
Which muscles help the mandible "chew"?
Temporalis, Masseter, Lateral&Medial Pterygoids
42
Which muscle elevates the 1st & 2nd rib during forced inhalation?
Scalene (Anterior, Medial, Posterior)
43
What dome shaped muscle separates the abdominal & thoracic cavities?
Diaphragm
44
What is the superficial medial muscle layer on the wall of the abdomen? *six pack
Rectus Abdominus
45
Where are the O/I of the Rectus Abdominus?
O: superior pubis near symphysis I: Inferior surfaces of costal cartilages & xiphoid Process
46
What is the A of the Rectus Abdominus?
Depresses ribs, flexes vertebral column
47
What is the largest & most superficial of the 3 muscles in the Abdominal Wall?
External Oblique
48
Where is the O/I of the External Oblique?
O: external surface of lower 8 ribs (false ribs) I: linea alba & interior half of illiac crest
49
What is the action of the External Oblique?
compress abdomiopelvic cavity. flexes & rotates vertebral column
50
Which muscle lies immediatly under external oblique?
Internal Oblique
51
Where is the O/I of the Internal Oblique?
O: illiac crest & lumbodorsal ligament I: linea alba, pubic crest, lower 4 ribs
52
What is the action of the Internal Oblique?
Compresses abdominopelvic cavity, flexes & rotates vertebral column
53
What is the innermost muscle of the abdominal wall?
Transverse Abdominus
54
What is the action of the Transverse Abdominus?
compress abdominal cavity
55
Where is the O/I of the Transverse Abdominus?
O: illiac crest, costal cartilage of lower 6 ribs, thoraco-lumbar fascia I: linea alba & pubic crest
56
Where is the O/I of the diaphragm?
O: xiphoid process, inner surface of lower 6 ribs, lumbar vertebrae I: central tendon of diaphragm
57
Which muscle keeps our "erect" when standing?
erector spinae
58
Which muscles assist with respiration?
Diaphragm & External Intercostals

Anatomy (10 decks)

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